A kind of preparation method of ultrathin coni alloy nano sheet

A kind of alloy nano and ultra-thin technology, which is applied in nano technology, metal processing equipment, transportation and packaging, etc., can solve the problems of complex preparation methods, and achieve the effect of simple operation, good oxygen evolution electrocatalytic activity, and good uniformity
CN107398564BActive Publication Date: 2019-06-25SHAANXI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI NORMAL UNIV
Publication Date
2019-06-25

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Abstract

The invention discloses a method for preparing ultra-thin CoNi alloy nanosheets. In the method, cobalt-nickel cyanide gel is first prepared with cobalt chloride and potassium tetracyannickelate as precursors, and then sodium borohydride is used as a reducing agent. The cobalt-nickel cyanide gel can be reduced into ultra-thin CoNi alloy nanosheets with regular shape and uniform size by medium heating method. The preparation method of the present invention is simple and economical, suitable for large-scale industrial production, and the obtained ultra-thin CoNi alloy nanosheets have good stability and water solubility, and have good OER catalytic activity and stability in alkaline potassium hydroxide solution, It has a good application prospect in electrochemistry.
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Description

technical field

[0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to a method for preparing ultrathin CoNi alloy nanosheets. As a catalyst, the CoNi alloy nanosheets exhibit high catalytic activity and stability for oxygen evolution reaction under alkaline conditions. Background technique

[0002] In recent years, due to the scarcity and high price of precious metal resources, more and more people have begun to study non-precious metal substances, especially non-precious metal alloys. Magnetic metals (such as cobalt, nickel) and their alloys have attracted much attention because of their high strength, corrosion resistance, high hardness, strong magnetism, and high catalytic performance. The study found that the catalytic performance of the special morphology structure is far superior to that of ordinary spherical particles. Cobalt-nickel alloy is a typical magnetic alloy. Cobalt-nickel alloy material has good corrosion r...

Claims

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