Preparation method of bayberry-shaped cobalt-nickel-boron composite carbon material proton membrane fuel cell catalyst

A fuel cell, cobalt nickel boron technology, applied in the field of catalysts, can solve the problems of high cost, single synthesis cost of precursors, toxicity, etc., and achieve the effects of simple equipment, excellent limiting current, and strong resistance to methanol poisoning
CN112886024BActive Publication Date: 2022-04-08FUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2022-04-08

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Abstract

The invention relates to a method for preparing a bayberry-shaped cobalt-nickel-boron composite carbon material proton membrane fuel cell catalyst. The nanomaterial active substance is a bayberry-shaped cobalt-nickel-boron composite carbon material, referred to as CoNi@TA / B. Solve the existing problems of existing fuel cell catalysts and overcome the defects of the prior art. At present, fuel cell catalysts generally face the problems of single precursor and synthesis cost, as well as defects such as high cost and toxicity of Pt-based catalytic materials; based on CoNi MOF With a unique structure, a metal-organic framework nanocomposite material for proton membrane fuel cells has been developed, which has high onset potential, half-slope potential, excellent limiting current, excellent stability and good methanol tolerance, It has the advantages of strong resistance to methanol poisoning.
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Description

technical field

[0001] The invention is used as a proton membrane fuel cell catalyst of bayberry-shaped cobalt-nickel-boron composite carbon material, and relates to the preparation of CoNi@TA / B nanometer material by a thermal decomposition process and its application as an oxygen reduction catalyst material. Background technique

[0002] In general, to ensure that electrocatalysts can work stably at high current densities, their active sites should have high surface area, high intrinsic activity, high tolerance, be easily accessible by reactants and at the same time conduct electrons to external circuits. Traditional MOFs-derived materials are mainly based on simple MOFs as a single precursor, so they mainly exhibit relatively simple configurations, and the catalysts prepared from them have poor ORR catalytic performance.

[0003] To this end, the present invention provides a method to realize the synthesis of high-performance ORR catalyst in a controllable manner, by using...

Claims

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