Preparation method and application of biomass carbon tube assisted MoS2 hydrogen evolution catalyst

A biomass carbon and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of limited natural resources and high cost, and achieve good conductivity, low cost, and wide application Effect

Pending Publication Date: 2019-08-16
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, metal Pt is a precious metal, and the use of metal Pt as an industri

Method used

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  • Preparation method and application of biomass carbon tube assisted MoS2 hydrogen evolution catalyst
  • Preparation method and application of biomass carbon tube assisted MoS2 hydrogen evolution catalyst
  • Preparation method and application of biomass carbon tube assisted MoS2 hydrogen evolution catalyst

Examples

Experimental program
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Example Embodiment

[0025] Example 1 Preparation method of biomass carbon tube assisted MoS2 hydrogen evolution catalyst

[0026] In this implementation, follow the steps in the following order:

[0027] (1) Biomass carbonization

[0028] Soak the cleaned celery sticks in 5wt% acid for 2.5 hours to remove K + And other impurities; then rinse the celery stalks after the acid soaking treatment with ultrapure water 7 times, after removing the acid attached to the celery stalks, put the celery stalks into a freeze dryer and dry them to a moisture content of 7 wt%. . Place the dried celery in a tube furnace, under the protection of nitrogen, heat the celery sticks from room temperature to 760 ˚C at a heating rate of 5 ˚C / min at a constant speed, and keep it for 2.8 hours, and finally prepare the carbon tube of birth material Matrix A;

[0029] (2) Biomass carbon tube assisted MoS 2 Preparation

[0030] Dissolve the powder of ammonium molybdate: thiourea: biomass carbon tube matrix A in water at a mass ratio ...

Example

[0031] Example 2-8 Biomass carbon tube assisted MoS 2 Preparation method of hydrogen evolution catalyst

[0032] Examples 2-8 are a kind of biomass carbon tube assisted MoS 2 The preparation method of the hydrogen evolution catalyst, the preparation method is the same as the preparation method of Example 1, except that the reaction conditions involved in each step, the materials used and the amounts are different, see Table 1 for details

[0033] Table 1

[0034]

Example Embodiment

[0035] Example 9 Biomass carbon tube assisted MoS 2 Application of hydrogen evolution catalyst

[0036] This embodiment provides a method of assisting MoS using any of the biomass carbon tubes in the embodiments 1-8 2 Biomass carbon tube assisted MoS prepared by the preparation method of hydrogen evolution catalyst 2 The application of hydrogen evolution catalyst, which is used as a catalyst in industrial electrocatalytic hydrogen evolution reaction to produce hydrogen.

[0037] The biomass carbon tube assisted MoS obtained in Examples 1-8 2 MoS in hydrogen evolution catalyst 2 : The mass ratio of the substrate A of the biomass carbonization tube is 1:1. When it is applied to the electrocatalytic hydrogen evolution reaction, the linear scanning curve of the performance is as follows figure 2 As shown in the curve a, this example also follows the preparation methods of Examples 1-8, by changing the amount of ammonium molybdate, thiourea and biomass carbon tube matrix A in step (2) t...

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Abstract

The invention discloses a preparation method and an application of a biomass carbon tube assisted MoS2 hydrogen evolution catalyst. The method comprises the following steps: with celery stems as a rawmaterial, producing a biomass carbon tube matrix, and carrying out a reaction on the powder of the biomass carbon tube matrix with ammonium molybdate and thiourea to finally obtain the biomass carbontube assisted MoS2 hydrogen evolution catalyst. The preparation method is simple and convenient to operate, low in cost and capable of easily preparing the required biomass carbon tube assisted MoS2hydrogen evolution catalyst on a large scale. The catalyst can be widely applied to industrial electrocatalytic hydrogen evolution reaction.

Description

technical field [0001] The invention belongs to the field of catalyst preparation, and relates to a preparation method of a hydrogen evolution catalyst, in particular, a biomass carbon tube assisted MoS 2 Preparation method and application of hydrogen evolution catalyst. Background technique [0002] In response to the global energy and environmental crisis, the development of renewable energy technology has become a trend. Hydrogen (H 2 ) as a renewable and environmentally friendly energy with a high calorific value of combustion is widely considered to be an ideal substitute for future fossil energy. The rapid development of hydrogen fuel cells in the prior art further emphasizes the primary importance of sustainable hydrogen production. [0003] In the current industrial production, hydrogen is produced through a promising method of hydrogen production——electrocatalytic hydrogen evolution reaction (HER), which makes hydrogen ions in the electrocatalyst (2H + + 2e - ...

Claims

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Application Information

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IPC IPC(8): B01J27/051C25B1/02C25B11/06
CPCB01J27/051B01J35/0033C25B1/02C25B11/091
Inventor 李青赵佳张博颖李峥乔山林李小云
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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