MnCoP catalyst, and preparation and application thereof

Abstract

The invention discloses a MnCoP catalyst, and preparation and application thereof. The preparation method comprises the following steps of: (1) preparing an electrolyte: mixing cobalt chloride, manganese sulfate, sodium hypophosphite and boric acid in an aqueous solution to obtain the electrolyte; and (2) preparing the MnCoP catalyst: dipping a cleaned porous matrix material in the electrolyte, then connecting the porous matrix material with a negative electrode of a power supply to be used as a cathode of an electrolysis device, and then electroplating to obtain the MnCoP catalytic material loaded on the porous matrix material. According to the preparation method, metal can be fully plated on the carrier without a surface catalyst, and the difunctional MnCoP catalyst which is good in binding force, large in area and efficient in catalytic performance and is used for sodium borohydride hydrolysis and water electrolysis hydrogen production can be synthesized only through two steps.

Description

technical field [0001] The invention belongs to the field of hydrogen energy and fuel cells, and specifically relates to a MnCoP catalyst, preparation and application. Background technique [0002] Hydrogen energy is a clean energy source, and as a zero-carbon energy source, it is increasingly favored by consumers. Compared with traditional energy sources such as oil, natural gas, and coal, hydrogen energy has the following advantages: (1) The combustion calorific value is very high, and the heat produced by burning hydrogen of the same quality is about 3 times that of gasoline, 3.9 times that of alcohol, and 4.5 times that of coke; ( 2) The product of combustion is water, which is the cleanest energy source in the world and has abundant resource reserves. At present, scientists are exploring new technologies that can produce hydrogen in large quantities and cheaply. Although hydrogen production by water electrolysis is easy to operate and raw materials are easy to obtain, ...

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Problems solved by technology

[0004] At present, the catalysts for hydrogen production in the prior art are mainly Pt, Ru precious metals and their alloy particle catalysts. The disadvantages are high cost, difficult recovery, uneasy control of the reaction, complicated steps, and long time. Therefore, the development of high-efficiency catalysts based on non-precious metals Bifunctional catalysts for hydrolysis of sodium borohydride and electrolysis of water for hydrogen production have become very important. Cobalt (Co) has become a non-noble metal that scientists have paid great attention to due to its good catalytic performance. At present, considerable research is devoted to the use of cobalt-based compounds. As a homogeneous molecular catalyst for sodium borohydride hydrolysis or hydrogen evolution

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