Hydrogen production catalyst based on nanotechnology and preparation process thereof

Abstract

The invention relates to a nanotechnology-based hydrogen production catalyst and a preparation process thereof, and belongs to the technical field of hydrogen production catalysts, and the nanotechnology-based hydrogen production catalyst is prepared from the following raw materials in parts by weight: 10-20 parts of ruthenium, 10-20 parts of platinum, 5-10 parts of an adhesive, 3-6 parts of hydroxypropyl methylcellulose phthalate powder, 6-10 parts of small molecular group flowing water and 10-15 parts of retarded sponge composite particles. By means of the adhesive, the hydroxypropyl methylcellulose phthalate powder and the small molecular group running water, the hydrogen production rate is increased, hydrogen production is stable and controllable through the hydrogen catalyst, and the situation that due to the high early-stage hydrogen production rate, part of hydrogen cannot be collected or utilized in time, resource waste is caused, and the cost is reduced is avoided. And in addition, the activity of water in the hydrolysis hydrogen production reaction is improved, the dispersion speed of ruthenium and platinum is increased, the overall activity of water is improved, and the hydrogen production rate is increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen production catalysts, and in particular relates to a hydrogen production catalyst based on nanotechnology and a preparation process thereof. Background Art

[0002] Hydrogen production catalysts play a vital role in the hydrogen energy industry. They can accelerate the hydrogen production reaction process, improve reaction efficiency and reduce energy consumption.

[0003] At present, adding hydrogen production catalysts to hydrogen production raw materials will greatly improve the hydrogen production capacity. However, during this period, there is a strong hydrogen production rate at the beginning of the hydrogen production reaction, which may easily lead to some hydrogen being unable to be collected or utilized in time, resulting in waste of resources. In addition, the instability of the hydrogen production catalyst may easily cause impacts on hydrogen production equipment, such as electrolyzers, gas separation and purification equipment, and affect their service life. Summary of the invention

[0004] The purpose of the present invention is to provide a hydrogen production catalyst based on nanotechnology and a preparation process thereof in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] The invention provides a hydrogen production catalyst based on nanotechnology. The raw materials for preparing the catalyst include, by weight, 10-20 parts of ruthenium, 10-20 parts of platinum, 5-10 parts of adhesive, 3-6 parts of hydroxypropyl methylcellulose phthalate powder, 6-10 small molecular group active water, and 10-15 parts of slow-speed sponge composite particles.

[0007] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0008] S1, treating ruthenium by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.05-0.07 nm;

[0009] S2, treating platinum by sputtering to obtain nano-scale platinum particles with a diameter of 0.5-0.7 nm;

[0010] S3, using a fluidized coating method to wrap the hydroxypropyl methylcellulose phthalate powder around the outside of the small molecular cluster active water to obtain a water cluster to be released;

[0011] S4, applying an adhesive to attach to the nano-sized ruthenium particles;

[0012] S5, mixing and stirring the nano-sized ruthenium particles in S4, the nano-sized platinum particles in S2, the water mass to be released and the slow sponge composite particles, controlling the time to be 3-6 min, the temperature to be 20-30° C., and the stirring speed to be 40-60 rps to obtain the object to be dried;

[0013] S6. Drying the surface of the object to be dried so that the adhesive is completely dried and solidified.

[0014] As a further optimization scheme of the present invention, based on S1, 20 grooves with a diameter of 0.005 nm are made on the surface of the nanoscale ruthenium particles using focused ion beam etching technology.

[0015] As a further optimization scheme of the present invention, based on S2, 40 grooves with a diameter of 0.005 nm were made on the surface of nano-scale platinum particles using focused ion beam etching technology.

[0016] As a further optimization scheme of the present invention, the specific preparation method of the adhesive is:

[0017] The solvent is coated on the outside of potassium hydroxide by a fluidized coating method to obtain a substance to be dissolved;

[0018] Mix the substance to be dissolved and hydrolyzed gelatin and stir, control the stirring time to 2-5min, control the stirring speed to 30-50rps, and control the stirring temperature to 10-15℃.

[0019] The mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:4.

[0020] As a further optimization scheme of the present invention, the specific preparation method of the solvent is:

[0021] Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water, control the stirring time to 5-10 minutes, control the stirring speed to 30-40 rps, and control the stirring temperature to 10-15°C.

[0022] The mass ratio of the hydroxypropyl methylcellulose powder, the dimethylaminoethyl methacrylate powder, the sodium carboxymethylcellulose solution and water is 1:1:0.5:2.

[0023] As a further optimization scheme of the present invention, the specific preparation method of the retarding sponge composite particles is:

[0024] Step A1, pelletizing the sponge with a sponge pelletizer to obtain sponge particles with a diameter of 0.1 cm-0.5 cm;

[0025] Step A2, laying the sponge particles flat, then spraying the polyurethane foaming agent on the sponge particles, and air-drying them naturally to obtain a sponge composite board;

[0026] Step A3: punch holes through the sponge composite board using a punching machine, with a hole spacing of 0.3 mm and a hole inner diameter of 0.1 mm;

[0027] Step A4: pelletize the sponge composite board in step A3 using a pelletizer to obtain slow-moving sponge composite particles with a diameter of 1-5 cm.

[0028] As a further optimization scheme of the present invention, the mass ratio of the sponge particles to the polyurethane foaming agent is 7:1.

[0029] The beneficial effects of the present invention are as follows: with the help of adhesive, hydroxypropyl methylcellulose phthalate powder, and small molecular cluster active water, the hydrogen production rate is enhanced, and the hydrogen catalyst makes the hydrogen production stable and controllable, avoiding the high hydrogen production rate in the early stage, which may cause part of the hydrogen to be unable to be collected or utilized in time, resulting in waste of resources, and avoiding the instability of the hydrogen production rate to impact the equipment and affect its service life. In addition, the activity of water in the hydrolysis hydrogen production reaction is improved to increase the dispersion speed of ruthenium and platinum, and the overall activity of water is improved, which is beneficial to the hydrogen production rate; with the help of slow sponge composite particles, the nano-scale ruthenium particles in the same water layer have a longer time to detach, so that the hydrogen production catalyst is gradually dispersed during the falling process, and the hydrogen production catalyst is avoided as much as possible. Rapid falling to the bottom of the transparent glass container and accumulation is avoided, which is beneficial to increasing the surface area of ​​the hydrogen production catalyst, and then facilitating the reaction. DETAILED DESCRIPTION

[0030] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] 1. Materials

[0032] Unless otherwise specified, the methods used in the present invention are conventional methods known to those skilled in the art, and the reagents and other materials used are commercially available products unless otherwise specified.

[0033] (1) In the present invention;

[0034] The water in the present invention is pure water.

[0035] (2) In the present invention;

[0036] The polyurethane foaming agent in the present invention adopts the foam glue polyurethane foaming agent produced by ergo7370 brand.

[0037] 2. Embodiment

[0038] Example 1

[0039] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 10 parts of ruthenium, 10 parts of platinum, 5 parts of adhesive, 3 parts of hydroxypropyl methylcellulose phthalate powder, 6 small molecular cluster active water, and 10 parts of slow sponge composite particles;

[0040] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0041] The ruthenium is processed by sputtering to obtain nano-scale ruthenium particles with a diameter of 0.05 nm, and 20 grooves with a diameter of 0.005 nm are made on the surface of the nano-scale ruthenium particles by using focused ion beam etching technology;

[0042] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.5 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0043] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0044] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 5 min, control the stirring speed to 30 rps, and control the stirring temperature to 10°C;

[0045] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 2 minutes, control the stirring speed to 30 rps, control the stirring temperature to 10°C, and the mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:4;

[0046] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0047] Slow-speed sponge composite particles: The sponge is pelletized by a sponge pelletizer to obtain sponge particles with a diameter of 0.1 cm, the sponge particles are spread flat, and then a polyurethane foaming agent is sprayed on the sponge particles, and the sponge composite board is naturally air-dried to obtain a sponge composite board, and a punching machine is used to perform a through-hole punching process on the sponge composite board, with a hole spacing of 0.3 mm and an inner hole diameter of 0.1 mm. The sponge composite board is pelletized by a pelletizer to obtain slow-speed sponge composite particles with a diameter of 1-5 cm, and the mass ratio of the sponge particles to the polyurethane foaming agent is 7:1;

[0048] The nano-sized ruthenium particles wrapped with a binder, the nano-sized platinum particles, the water mass to be released and the slow sponge composite particles are mixed and stirred for 3 minutes, the temperature is 20° C., and the stirring speed is 40-60 rps to obtain the object to be dried;

[0049] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0050] Example 2

[0051] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 15 parts of ruthenium, 15 parts of platinum, 7 parts of adhesive, 4 parts of hydroxypropyl methylcellulose phthalate powder, 8 parts of small molecular group active water, and 13 parts of slow sponge composite particles;

[0052] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0053] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.06 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0054] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.6 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0055] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0056] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 8 minutes, control the stirring speed to 35 rps, and control the stirring temperature to 13°C;

[0057] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 4 minutes, control the stirring speed to 40 rps, control the stirring temperature to 13°C, and the mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:4;

[0058] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0059] Slow-speed sponge composite particles: The sponge is pelletized by a sponge pelletizer to obtain sponge particles with a diameter of 0.3 cm, the sponge particles are spread flat, and then a polyurethane foaming agent is sprayed on the sponge particles, and the sponge composite board is naturally air-dried to obtain a sponge composite board, and a punching machine is used to perform a through-hole punching process on the sponge composite board, with a hole spacing of 0.3 mm and an inner hole diameter of 0.1 mm. The sponge composite board is pelletized by a pelletizer to obtain slow-speed sponge composite particles with a diameter of 3 cm, and the mass ratio of the sponge particles to the polyurethane foaming agent is 7:1;

[0060] The nano-sized ruthenium particles wrapped with a binder, the nano-sized platinum particles, the water mass to be released and the slow sponge composite particles are mixed and stirred for 5 minutes, the temperature is 15° C., and the stirring speed is 50 rps to obtain a material to be dried;

[0061] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0062] Example 3

[0063] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 20 parts of ruthenium, 20 parts of platinum, 10 parts of adhesive, 6 parts of hydroxypropyl methylcellulose phthalate powder, 10 parts of small molecular group active water, and 15 parts of slow sponge composite particles;

[0064] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0065] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.07 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0066] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.7 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by focused ion beam etching technology;

[0067] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0068] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 10 min, control the stirring speed to 40 rps, and control the stirring temperature to 10-15°C;

[0069] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 2-5min, control the stirring speed to 50rps, control the stirring temperature to 15°C, and the mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:4;

[0070] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0071] Slow-speed sponge composite particles: The sponge is pelletized by a sponge pelletizer to obtain sponge particles with a diameter of 0.5 cm, the sponge particles are spread flat, and then a polyurethane foaming agent is sprayed on the sponge particles, and the sponge composite board is naturally air-dried to obtain a sponge composite board, and a punching machine is used to perform a through-hole punching process on the sponge composite board, with a hole spacing of 0.3 mm and an inner hole diameter of 0.1 mm. The sponge composite board is pelletized by a pelletizer to obtain slow-speed sponge composite particles with a diameter of 5 cm, and the mass ratio of the sponge particles to the polyurethane foaming agent is 7:1;

[0072] The nano-sized ruthenium particles wrapped with a binder, the nano-sized platinum particles, the water mass to be released and the slow sponge composite particles are mixed and stirred for 6 minutes, the temperature is controlled at 30° C., and the stirring speed is controlled at 60 rps to obtain a material to be dried;

[0073] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0074] Comparative Example 1

[0075] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 15 parts of ruthenium, 15 parts of platinum, 7 parts of adhesive, 4 parts of hydroxypropyl methylcellulose phthalate powder, 8 parts of small molecular group active water, and 13 parts of slow sponge composite particles;

[0076] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0077] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.06 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0078] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.6 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0079] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0080] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 8 minutes, control the stirring speed to 35 rps, and control the stirring temperature to 13°C;

[0081] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 4 minutes, control the stirring speed to 40 rps, control the stirring temperature to 13°C, and the mass ratio of potassium hydroxide to hydrolyzed gelatin is 4:6;

[0082] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0083] Slow-speed sponge composite particles: The sponge is pelletized by a sponge pelletizer to obtain sponge particles with a diameter of 0.3 cm, the sponge particles are spread flat, and then a polyurethane foaming agent is sprayed on the sponge particles, and the sponge composite board is naturally air-dried to obtain a sponge composite board, and a punching machine is used to perform a through-hole punching process on the sponge composite board, with a hole spacing of 0.3 mm and an inner hole diameter of 0.1 mm. The sponge composite board is pelletized by a pelletizer to obtain slow-speed sponge composite particles with a diameter of 3 cm, and the mass ratio of the sponge particles to the polyurethane foaming agent is 7:1;

[0084] The nano-sized ruthenium particles coated with a binder, the nano-sized platinum particles and the slow sponge composite particles are mixed and stirred for 5 minutes, at a temperature of 15° C. and at a stirring speed of 50 rps to obtain a product to be dried;

[0085] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0086] Comparative Example 2

[0087] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 15 parts of ruthenium, 15 parts of platinum, 7 parts of adhesive, 4 parts of hydroxypropyl methylcellulose phthalate powder, 8 parts of small molecular group active water, and 13 parts of slow sponge composite particles;

[0088] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0089] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.06 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0090] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.6 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0091] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0092] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 8 minutes, control the stirring speed to 35 rps, and control the stirring temperature to 13°C;

[0093] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 4 minutes, control the stirring speed to 40 rps, control the stirring temperature to 13°C, and the mass ratio of the solvent to the hydrolyzed gelatin is 4:6;

[0094] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0095] Slow-speed sponge composite particles: The sponge is pelletized by a sponge pelletizer to obtain sponge particles with a diameter of 0.3 cm, the sponge particles are spread flat, and then a polyurethane foaming agent is sprayed on the sponge particles, and the sponge composite board is naturally air-dried to obtain a sponge composite board, and a punching machine is used to perform a through-hole punching process on the sponge composite board, with a hole spacing of 0.3 mm and an inner hole diameter of 0.1 mm. The sponge composite board is pelletized by a pelletizer to obtain slow-speed sponge composite particles with a diameter of 3 cm, and the mass ratio of the sponge particles to the polyurethane foaming agent is 7:1;

[0096] The nano-sized ruthenium particles coated with a binder, the nano-sized platinum particles and the slow sponge composite particles are mixed and stirred for 5 minutes, at a temperature of 15° C. and at a stirring speed of 50 rps to obtain a product to be dried;

[0097] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0098] Comparative Example 3

[0099] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 18.6 parts of ruthenium, 18.6 parts of platinum, 8.68 parts of adhesive, and 16.12 parts of retarding sponge composite particles;

[0100] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0101] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.06 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0102] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.6 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0103] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 8 minutes, control the stirring speed to 35 rps, and control the stirring temperature to 13°C;

[0104] Adhesive: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and polyurethane glue, control the stirring time to 4 minutes, control the stirring speed to 40rps, control the stirring temperature to 13°C, and the mass ratio of the solvent, potassium hydroxide and polyurethane glue is 3:3:4;

[0105] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0106] Slow-speed sponge composite particles: The sponge is pelletized by a sponge pelletizer to obtain sponge particles with a diameter of 0.3 cm, the sponge particles are spread flat, and then a polyurethane foaming agent is sprayed on the sponge particles, and the sponge composite board is naturally air-dried to obtain a sponge composite board, and a punching machine is used to perform a through-hole punching process on the sponge composite board, with a hole spacing of 0.3 mm and an inner hole diameter of 0.1 mm. The sponge composite board is pelletized by a pelletizer to obtain slow-speed sponge composite particles with a diameter of 3 cm, and the mass ratio of the sponge particles to the polyurethane foaming agent is 7:1;

[0107] The nano-sized ruthenium particles coated with a binder, the nano-sized platinum particles and the slow sponge composite particles are mixed and stirred for 5 minutes, at a temperature of 15° C. and at a stirring speed of 50 rps to obtain a product to be dried;

[0108] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0109] Comparative Example 4

[0110] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 15 parts of ruthenium, 15 parts of platinum, 7 parts of adhesive, 4 parts of hydroxypropyl methylcellulose phthalate powder, 8 parts of small molecular group active water, and 13 parts of slow-moving sponge composite particles (the sponge particles account for 100%);

[0111] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0112] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.06 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0113] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.6 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0114] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0115] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 8 minutes, control the stirring speed to 35 rps, and control the stirring temperature to 13°C;

[0116] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 4 minutes, control the stirring speed to 40 rps, control the stirring temperature to 13°C, and the mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:4;

[0117] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0118] Slow-speed sponge composite particles: The sponge is diced by a sponge granulator to obtain sponge particles with a diameter of 0.3 cm, and the sponge particles are punched through with a punching machine, with a hole spacing of 0.3 mm and a hole inner diameter of 0.1 mm, to obtain slow-speed sponge composite particles with a diameter of 3 cm;

[0119] The nano-sized ruthenium particles wrapped with a binder, the nano-sized platinum particles, the water mass to be released and the slow sponge composite particles are mixed and stirred for 5 minutes, the temperature is 15° C., and the stirring speed is 50 rps to obtain a material to be dried;

[0120] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0121] Comparative Example 5

[0122] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 15 parts of ruthenium, 15 parts of platinum, 7 parts of adhesive, 4 parts of hydroxypropyl methylcellulose phthalate powder, 8 parts of small molecular group active water, and 13 parts of slow-moving sponge composite particles (polyurethane foaming agent accounts for 100%);

[0123] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0124] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.06 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0125] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.6 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0126] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0127] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 8 minutes, control the stirring speed to 35 rps, and control the stirring temperature to 13°C;

[0128] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 4 minutes, control the stirring speed to 40 rps, control the stirring temperature to 13°C, and the mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:4;

[0129] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0130] Retarding sponge composite particles: The polyurethane foaming agent is sprayed out, naturally air-dried, and a through-hole punching machine is used to punch holes with a spacing of 0.3 mm between holes and an inner diameter of 0.1 mm, and then pelletized to obtain retarding sponge composite particles with a diameter of 3 cm;

[0131] The nano-sized ruthenium particles wrapped with a binder, the nano-sized platinum particles, the water mass to be released and the slow sponge composite particles are mixed and stirred for 5 minutes, the temperature is 15° C., and the stirring speed is 50 rps to obtain a material to be dried;

[0132] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0133] Comparative Example 6

[0134] A hydrogen production catalyst based on nanotechnology, wherein the raw materials for its preparation include, by weight: 19 parts of ruthenium, 19 parts of platinum, 8.82 parts of adhesive, 5.04 parts of hydroxypropyl methylcellulose phthalate powder, and 10.14 parts of small molecular group active water;

[0135] A method for preparing the above-mentioned hydrogen production catalyst based on nanotechnology comprises the following steps:

[0136] The ruthenium was processed by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.06 nm, and 20 grooves with a diameter of 0.005 nm were made on the surface of the nanoscale ruthenium particles by using focused ion beam etching technology;

[0137] Platinum was processed by sputtering to obtain nano-scale platinum particles with a diameter of 0.6 nm, and 40 grooves with a diameter of 0.005 nm were made on the surface of the nano-scale platinum particles by using focused ion beam etching technology;

[0138] The hydroxypropyl methylcellulose phthalate powder is coated on the outside of the small molecular mass active water by fluidized coating method to obtain the water mass to be released;

[0139] Solvent preparation: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water (the mass ratio of hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water is 1:1:0.5:2), control the stirring time to 8 minutes, control the stirring speed to 35 rps, and control the stirring temperature to 13°C;

[0140] Binder: Wrap the solvent on the outside of potassium hydroxide by fluidized coating method to obtain the substance to be dissolved, mix and stir the substance to be dissolved and hydrolyzed gelatin, control the stirring time to 4 minutes, control the stirring speed to 40 rps, control the stirring temperature to 13°C, and the mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:4;

[0141] Applying an adhesive to attach to the nano-sized ruthenium particles;

[0142] The nano-scale ruthenium particles coated with a binder, the nano-scale platinum particles, and the water mass to be released are mixed and stirred for 5 minutes, at a temperature of 15° C., and at a stirring speed of 50 rps to obtain a material to be dried;

[0143] The object to be dried is subjected to surface drying treatment so that the adhesive is completely dried and solidified.

[0144] III. Methods

[0145] 1. Hydrogen production experiment

[0146] 1) Experimental Materials

[0147] Water electrolysis hydrogen production instrument: 1;

[0148] Water: 9100L;

[0149] 2) Experimental procedures

[0150] ①, the hydrogen production catalysts prepared in Examples 1-3 and Comparative Examples 1-6 are marked as No. 1-9, each weighing 100 g, and the hydrogen production catalysts No. 1-9 are divided into ten portions, each weighing 10 g, to obtain a total of 90 portions of hydrogen production catalysts;

[0151] ②. Add 100L of water and 1 part of hydrogen production catalyst into the water electrolysis hydrogen production instrument in turn to carry out the hydrolysis hydrogen production reaction for 10 minutes;

[0152] ③. According to the method in step ②, 90 parts of hydrogen catalyst and 100L of unused water are poured into the water electrolysis hydrogen production instrument to carry out the hydrolysis hydrogen production reaction. In addition, a blank group is set up: "only 100L of water is added to the water electrolysis hydrogen production instrument to carry out the hydrolysis hydrogen production reaction";

[0153] ④. Obtain 91 sets of data on the hydrogen production per second of the water electrolysis hydrogen production instrument, and take the average value of the 10 sets of data under each number 1-9 for recording, and record the data on the hydrogen production per second of the blank group;

[0154] The results are shown in the following table:

[0155] Table 1

[0156]

[0157]

[0158] As can be seen from the above table, the hydrogen catalyst prepared by Example 2 has the largest amount of hydrogen produced per second compared with Example 1, Example 3, and Comparative Examples 1-2, thereby enhancing the hydrogen production rate. The hydrogen catalyst makes hydrogen production stable and controllable, thereby avoiding the high hydrogen production rate in the early stage, which may cause some hydrogen to be unable to be collected or utilized in time, resulting in a waste of resources, and avoiding the instability of the hydrogen production rate as much as possible, thereby impacting the water electrolysis hydrogen production instrument (including the electrolyzer), gas separation and purification equipment and affecting their service life;

[0159] Compared with Comparative Example 3, the hydrogen catalyst prepared in Example 2 improves the activity of water in the hydrolysis hydrogen production reaction, increases the speed of ruthenium and platinum dispersion, and improves the overall activity of water, which is beneficial to the hydrogen production rate;

[0160] As described above, the hydrogen catalyst prepared in Example 2 is the best.

[0161] 3. Falling speed experiment

[0162] 1) Experimental Materials

[0163] Transparent glass containers: 40, height 100cm, 50L;

[0164] Water: 1800L;

[0165] 2) Experimental procedures

[0166] ①, the hydrogen production catalysts prepared in Example 2 and Comparative Examples 4-6 are marked as No. 1-4, each weighing 300 g, and the hydrogen production catalysts No. 1-4 are divided into ten portions, each weighing 30 g, to obtain a total of 40 portions of hydrogen production catalysts;

[0167] ② Pour 45L of water into 40 transparent glass containers;

[0168] ③. Place 40 portions of hydrogen production catalyst into 40 transparent glass containers respectively;

[0169] ④. Observe the time it takes for 40 portions of hydrogen production catalyst to fall to the bottom of the transparent glass container, and take the average value of 10 sets of data for each number 1-4 and record them;

[0170] The results are shown in the following table:

[0171] Table 2

[0172] project Falling time Example 2 4min15s Comparative Example 4 32s Comparative Example 5 --- Comparative Example 6 5s

[0173] “---” means it has not fallen within 40 minutes and is floating on the water surface;

[0174] It can be seen from the above table that the hydrogen production catalyst prepared in Example 2 has the slowest falling speed compared with Examples 4-6. Therefore, the nanoscale ruthenium particles in the same water layer have a longer time to detach, so that the hydrogen production catalyst is gradually dispersed during the falling process, and the hydrogen production catalyst is avoided from falling quickly to the bottom of the transparent glass container and accumulating, which is beneficial to increase the surface area of ​​the hydrogen production catalyst, and thus is beneficial to the reaction.

[0175] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A hydrogen production catalyst based on nanotechnology, characterized in that: The raw materials for its preparation include, by weight: 10-20 parts of ruthenium, 10-20 parts of platinum, 5-10 parts of adhesive, 3-6 parts of hydroxypropyl methylcellulose phthalate powder, 6-10 parts of small molecular cluster active water, and 10-15 parts of slow-moving sponge composite particles.

2. A method for preparing a hydrogen production catalyst based on nanotechnology according to claim 1, characterized in that: The following steps are involved: S1, treating ruthenium by sputtering to obtain nanoscale ruthenium particles with a diameter of 0.05-0.07 nm; S2, treating platinum by sputtering to obtain nano-scale platinum particles with a diameter of 0.5-0.7 nm; S3, using a fluidized coating method to wrap the hydroxypropyl methylcellulose phthalate powder around the outside of the small molecular cluster active water to obtain a water cluster to be released; S4, applying an adhesive to attach to the nano-sized ruthenium particles; S5, mixing and stirring the nano-sized ruthenium particles in S4, the nano-sized platinum particles in S2, the water mass to be released and the slow sponge composite particles, controlling the time to be 3-6 min, the temperature to be 20-30° C., and the stirring speed to be 40-60 rps to obtain the object to be dried; S6. Drying the surface of the object to be dried so that the adhesive is completely dried and solidified.

3. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 2, characterized in that: Based on S1, 20 grooves with a diameter of 0.005 nm were made on the surface of nanoscale ruthenium particles using focused ion beam etching technology.

4. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 2, characterized in that: Based on S2, 40 grooves with a diameter of 0.005 nm were made on the surface of nanoscale platinum particles using focused ion beam etching technology.

5. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 2, characterized in that: The specific preparation method of the adhesive is: The solvent is coated on the outside of potassium hydroxide by a fluidized coating method to obtain a substance to be dissolved; Mix the substance to be dissolved and hydrolyzed gelatin and stir, control the stirring time to 2-5min, control the stirring speed to 30-50rps, and control the stirring temperature to 10-15℃.

6. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 5, characterized in that: The mass ratio of the solvent, potassium hydroxide and hydrolyzed gelatin is 3:3:

4.

7. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 5, characterized in that: The specific preparation method of the solvent is: Mix hydroxypropyl methylcellulose powder, dimethylaminoethyl methacrylate powder, sodium carboxymethyl cellulose solution and water, control the stirring time to 5-10 minutes, control the stirring speed to 30-40 rps, and control the stirring temperature to 10-15°C.

8. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 7, characterized in that: The mass ratio of the hydroxypropyl methylcellulose powder, the dimethylaminoethyl methacrylate powder, the sodium carboxymethylcellulose solution and water is 1:1:0.5:

2.

9. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 1, characterized in that: The specific preparation method of the retarding sponge composite particles is as follows: Step A1, pelletizing the sponge with a sponge pelletizer to obtain sponge particles with a diameter of 0.1 cm-0.5 cm; Step A2, laying the sponge particles flat, then spraying the polyurethane foaming agent on the sponge particles, and air-drying them naturally to obtain a sponge composite board; Step A3: punch holes through the sponge composite board using a punching machine, with a hole spacing of 0.3 mm and a hole inner diameter of 0.1 mm; Step A4: pelletize the sponge composite board in step A3 using a pelletizer to obtain slow-moving sponge composite particles with a diameter of 1-5 cm.

10. The method for preparing a hydrogen production catalyst based on nanotechnology according to claim 9, characterized in that: The mass ratio of the sponge particles to the polyurethane foaming agent is 7:1.

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