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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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  • Summary
  • 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 industrial catalyst has the disadvantages of high cost and limited natural resources.

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
Comparison scheme
Effect test

Embodiment 1

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

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

[0027] (1) Carbonization of biomass

[0028] Soak the washed celery sticks in 5wt% acid for 2.5 hours to remove K + and other impurities; then utilize ultra-pure water to rinse the celery stalks after acid soaking treatment 7 times, remove the acid attached to the celery stalks, put the celery stalks into a freeze dryer and dry until the water content is 7 wt%. . The dried celery was placed in a tube furnace, and under the protection of nitrogen, the celery stalks were heated from room temperature to 760 ˚C at a heating rate of 5 ˚C / min and kept for 2.8 hours to prepare biomass carbon tubes Matrix A;

[0029] (2) Biomass carbon tube assisted MoS 2 preparation of

[0030] Dissolve the powder of ammonium molybdate: thiourea: biomass carbon tube substrate A in water according to the mass ratio of 1:2...

Embodiment 2～8

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

[0032] Examples 2-8 are respectively 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, the difference is that the reaction conditions involved in each step, the substances used and the amount are different, specifically see Table 1

[0033] Table 1

[0034]

Embodiment 9

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

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

[0037] The biomass carbon tube assisted MoS obtained in embodiment 1~8 2 MoS in hydrogen evolution catalyst 2 : The mass ratio of the biomass carbonization tube matrix A 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 of , at the same time, according to the preparation method of Examples 1-8, MoS was obtained by changing the powder amounts of ammonium molybdate, thiourea and biomass c...

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PUM

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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
CPCB01J27/051C25B1/02C25B11/091B01J35/33
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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