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A kind of preparation method of porous carbon supported nano metal sulfide

A technology of sulfide and porous carbon, which is applied in the field of nanomaterials, can solve the problems of complex processing, high cost, and high cost of template agents, and achieve the effects of large controllable range, low cost, and convenient processing

Active Publication Date: 2018-02-06
CHANGZHOU YINGZHONG NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis route of this method is relatively complicated, and when the content of Au component is high, the liquid crystal structure is no longer stable, so the ratio of the two components of Pt and Au cannot be adjusted arbitrarily.
[0006] All in all, the traditional method of preparing porous materials is difficult to achieve large-scale industrial production due to the high cost of templates, complicated post-processing, and high cost, and it is difficult to simultaneously control the composition, crystal form, and particle size of porous materials.
In addition, traditional synthesis methods cannot be widely used in the preparation of various porous metal oxides and metal materials due to various limitations.

Method used

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  • A kind of preparation method of porous carbon supported nano metal sulfide
  • A kind of preparation method of porous carbon supported nano metal sulfide
  • A kind of preparation method of porous carbon supported nano metal sulfide

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Add 1.5g of glucose and 150g of thiourea into the inner lining of the hydrothermal kettle, heat and stir with an electric heating mantle at 120°C until clear and transparent, add a certain proportion of ammonium molybdate tetrahydrate or nickel nitrate that has been weighed, stir evenly, and heat to a certain degree After that, put it into a hydrothermal kettle, conduct a hydrothermal reaction under high pressure at 180°C for 48 hours, grind it evenly, and use a tube furnace to heat it at 400°C H 2 After sintering activation, samples were collected for testing.

[0025] The nanometer molybdenum sulfide supported by porous carbon prepared in this example is about 20nm, and the edge fold is about 5nm, and its TEM image is as follows figure 1 As shown, the prepared nickel sulfide TEM is as figure 2 shown.

[0026] The XRD figure of the nanomolybdenum sulfide supported by porous carbon prepared in this example, as image 3 As shown, the XRD pattern of porous carbon-sup...

Embodiment 2

[0028] Add 150g of glucose and 1.5g of thiourea into the inner lining of the hydrothermal kettle, heat and stir with an electric heating mantle at 120°C until clear and transparent, add a certain proportion of ammonium molybdate tetrahydrate that has been weighed, stir evenly, heat to a certain degree, and put in In a hydrothermal kettle, 180°C high-pressure hydrothermal reaction for 48 hours, after grinding evenly, use a tube furnace at 400°C H 2 After sintering activation, samples were collected for testing.

Embodiment 3

[0030] Add 1.5g of glucose and 2.5g of thiourea into the inner lining of the hydrothermal kettle, heat and stir with an electric heating mantle at 120°C until clear and transparent, add 0.015g of ammonium molybdate tetrahydrate, stir evenly, heat to a certain degree, and then put In a hydrothermal kettle, 180°C high-pressure hydrothermal reaction for 48 hours, after grinding evenly, use a tube furnace at 400°C H 2 After sintering activation, samples were collected for testing.

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Abstract

The invention discloses a preparation method of porous carbon-supported nanometer metal sulfide, belonging to the technical field of nanomaterials. The method uses the solvothermal method as the reaction system, in which the sugar source is the carrier precursor, and the soluble metal salt is used as the carrier precursor. After heating and stirring to form a homogeneous phase, and then through the high-pressure hydrothermal method, porous carbon-supported nano-sulfurization is obtained. precursor nanoparticles. Then, porous carbon-supported nanosulfide particles can be obtained by high-temperature reduction or calcination. The invention can overcome the sintering problem of nanometer particles in the heat treatment process, and obtain the required crystal phase under the premise of ensuring the monodispersity of nanometer particles. In addition, parameters such as the size and composition of the product can be adjusted by controlling the synthesis conditions. The invention also has the advantages of wide application range, simple operation and low cost, and is suitable for the preparation of many metal sulfide nanoparticles.

Description

technical field [0001] The invention relates to a method for preparing porous carbon-loaded nanometer metal sulfides, belonging to the field of nanomaterials. Background technique [0002] Porous materials are a new class of nanostructured materials that emerged rapidly in the 1990s. They have been highly valued by researchers in the fields of chemistry, materials science and physics since their birth, and have rapidly developed into interdisciplinary research hotspots. The International Union of Pure and Applied Chemistry (IUPAC) stipulates that porous solid materials can be divided into three categories: one is microporous solid (pore size less than 2nm), the second is mesoporous solid (pore size between 2-50 nm), and the third is Macroporous solid (pore diameter greater than 50 nm). Porous carbon material is a new type of material with micropores, mesopores and macropores mixed with large specific surface area and three-dimensional pore structure. Its research and develo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/043B01J27/051B01J35/10
Inventor 姜兴茂陆伟王非梁帅张震威任婧吴越全林
Owner CHANGZHOU YINGZHONG NANO TECH