Catalyst for preparing boron hydride by electrolysis and preparing method for catalytic electrode

Abstract

This invention relates to a catalyst for preparing boron-hydrogen compounds in an electrolytic process and manufacture of catalytic electrodes containing it. The catalyst comprises one of hydrogen-storing alloy, carbon materials and metal borides or their mixture. It is prepared by: mixing catalyst powders 60 - 90 parts, additives 0 - 20 parts and binding agent 1 - 10 parts uniformly, adding solution to form films, and pressing the films onto current-collecting Ni or steel nets; or adding solution to form pastes, coating them onto surfaces or internal sides of Ni or steel nets in a certain thickness, and drying to obtain catalytic electrodes. The catalyst and catalytic electrodes can be used to prepare boron hydrides with high performance of electric current >50% in alkali solution by electrolysis with low cost.

Description

technical field [0001] The invention relates to a catalyst for preparing borohydride by electrolysis and a method for preparing a catalytic electrode containing the catalyst, belonging to the fields of energy materials and fuel cell hydrogen sources. Background technique [0002] The hydrogen energy economy is an energy development direction proposed by human society to alleviate resource and environmental problems. The core content of this development is to replace existing fossil fuels (coal, petroleum) with hydrogen as a clean, green, portable and transportable fuel. . The fuel cell using hydrogen as fuel is an efficient and clean power generation device, and has gradually become an ideal supporting power source for portable electronic products and electric vehicles. At present, the main problem that restricts the development and application of fuel cells is the storage of hydrogen, and the hydrogen storage methods currently used have low hydrogen storage capacity, such ...

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the shortcomings of the above-mentioned existing catalysts, which are expensive and low in current efficiency, the object of the present invention is to provide a catalyst for the electrolytic preparation of borohydrides - a cheap and efficient electrolytic preparation of borohydride catalysts and the preparation of borohydride catalysts containing the Catalytic Electrode Method for Catalysts