Preparation method of spherical carbon-coated nickel with different carbon layers and hydrogen evolution property for water electrolysis of spherical carbon-coated nickel

A carbon-coated nickel and spherical technology, which is applied in the field of transition metal carbide preparation, can solve the problems of unfavorable promotion, time-consuming, cumbersome process, etc., and achieve the effects of reducing production costs, simple equipment requirements, and reducing pollution
CN110449157AInactive Publication Date: 2019-11-15ZHENGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHENGZHOU UNIV
Publication Date
2019-11-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of preparation of transition metal carbides, in particular to a preparation method of spherical carbon-coated nickel with different carbon layers and a hydrogen evolution property for water electrolysis of the spherical carbon-coated nickel. The preparation method comprises the following steps: (1) uniformly dispersing nickel nitrate hexahydrate and glycine in anhydrous ethanol by mechanical stirring; (2) transferring the mixed liquid to a reaction kettle, and carrying out a reaction for 12 hours at the temperature of 180 DEG C to obtain a carbon-coated nickel precursor; and (3) conducting roasting in nitrogen under a certain temperature condition to obtain the spherical carbon-coated nickel composite materials respectively. The method has the advantages that the raw materials are cheap and easy to obtain, synthesis is facilitated, equipment is simple, the production process is pollution-free, large-scale production can be quickly realized,and the material has lots of active sites and good hydrogen evolution properties for water electrolysis.
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Description

technical field

[0001] The invention relates to the technical field of transition metal carbide preparation, in particular to a preparation method of spherical carbon-coated nickel with different carbon layers and its electrolytic water hydrogen evolution performance. Background technique

[0002] With the increasing environmental problems such as air pollution, greenhouse effect and smog brought about by the consumption of fossil fuels (Climatic Change, 2014, 123(3-4):413-426), the development of clean, pollution-free and renewable new Energy is gradually being valued by people. Hydrogen energy is considered to be the most ideal in the future energy pattern due to its high combustion calorific value, abundant reserves, easy access, renewable nature, green and non-toxic combustion products, easy storage and transportation. energy carrier. Electrocatalytic water splitting is an important way to achieve industrial hydrogen production (Nanoscale, 2014, 6(21):12490-12499). Curr...

Claims

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