A kind of preparation method of cobalt phosphide hollow nanofiber material

A technology of nanofibers and nanofiber membranes, which is applied in the field of preparation of cobalt phosphide hollow nanofiber materials, can solve problems such as cobalt phosphide nanomaterials, and achieve the effects of cheap and easy-to-obtain materials, good conductivity, and low cost
CN105803580BInactive Publication Date: 2018-05-18DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2018-05-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method of a cobalt phosphide hollow nano-fiber material.The preparation method comprises the steps of adding cobalt salt to N, N-dimethylformamide, after the cobalt salt is dissolved, adding polyvinylpyrrolidone, conducting stirring, so that a precursor spinning solution is obtained, and conducting electrostatic spinning, so that a polyvinylpyrrolidone nanofiber membrane doped with cobalt ions is obtained; conducting pre-oxidation, and then conducting calcination at the temperature of 400-700 DEG C, so that a hollow tubular cobaltosic oxide nano-fiber is obtained; then mixing the hollow tubular cobaltosic oxide nano-fiber with sodium hypophosphite monohydrate, conducting a phosphorization reaction, and conducting cleaning and drying, so that the cobalt phosphide hollow nano-fiber material is obtained.The method is environmentally friendly in process and low in cost; the obtained cobalt phosphide hollow nano-fiber material is stable in chemical property and high in activity of electro-catalysis hydrogen evolution and expected to serve as an ideal high-performance electrochemical hydrogen evolution catalytic material.
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Description

technical field

[0001] The invention belongs to the technical field of transition metal phosphide-electrospinning nanofibers, and in particular relates to a method for preparing cobalt phosphide hollow nanofiber materials. Background technique

[0002] Energy and the environment are two major issues facing the sustainable development of human society at present. Hydrogen energy, as an ideal clean energy and an important chemical raw material, has been widely valued by countries all over the world. Electrocatalytic hydrogen production is one of the effective ways to convert electrical energy into chemical energy. The hydrogen evolution reaction is also of great significance in the fields of electrochemical industry, metal corrosion and corrosion protection. At present, metal platinum has excellent performance as a catalytic material for hydrogen evolution reaction, but it is difficult to apply it on a large scale due to the limited reserves and high price of platinum. Cobalt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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