Preparation method of porous fuel cell anode material NiCu/C

Abstract

Belonging to the technical field of metal material preparation, the invention relates to a preparation method of a porous fuel cell anode material NiCu/C. The method is characterized by: adopting activated carbon with a high specific surface as a hard template to impregnate a precursor solution of a metal nitrate or a metallorganic compound; in an anaerobic environment and by means of a calcination technology, carrying out heating at a proper heating rate, first decomposing the metal salt and organic compound, then subjecting the obtained metal oxide and the carbon of the hard template to a reduction reaction so as to form single metals, and finally after melting at a metal melting temperature and copying the 3D structure of activated carbon, leaving the single metals to cool to a room temperature naturally, thus obtaining a nanometer grade nickel-copper alloy material of high specific surface. And the material has an expression of MM'/C, wherein, M and M' are Ni/Cu metallic elements, and the component ratio can be distributed according to requirements. With the method of invention, a nanometer grade nickel-copper alloy material of high specific surface can be obtained through a simple and convenient operation process.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation, and relates to an alloy preparation process, in particular to a method for manufacturing a porous structure characteristic of a high specific meter. Background technique [0002] Solid oxide fuel cells have attracted more and more attention due to their high energy conversion efficiency and environmental friendliness. However, the research on anode materials in solid oxide fuel cells has always been the difficulty of carbon deposition. Using Pt as an anode material can solve this difficulty well, but Pt is expensive and difficult to be widely used. With the deepening of research, in the document Preparation of Cu-Ni / YSZ solid oxide fuel cell a nodes using microwave irradiation.Shamiul Islam, Josephine M.Hill.Journal of Power Sources 196(2011)5091-5094, the researchers It is found that the nickel-copper alloy not only has excellent catalytic performance, but also has outstandin...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a simple and easy method for preparing nickel-copper alloy materials with a porous structure by using high-specific surface activated carbon as a template, and through impreg