Proton exchange membrane fuel cell catalyst synthesis method

Abstract

The invention provides a proton exchange membrane fuel cell catalyst synthesis method, which comprises: dispersing a Pt / C precursor in water to obtain a dispersion liquid with a Pt / C precursor concentration of 5-15 g / L; mixing the dispersion liquid with an inorganic cobalt salt according to a ratio of 1: 1 to obtain a mixed dispersion liquid; dropwise adding a NaBH4 aqueous solution into the mixed dispersion liquid to obtain a mixed liquid; carrying out suction filtration, washing and drying on the mixed solution to obtain a Co-containing Pt / C sample; placing the Co-containing Pt / C sample in an argon atmosphere, and heating and cooling to obtain a PtCo / C alloy catalyst containing cobalt particles; and washing the PtCo / C alloy catalyst containing the cobalt particles in an acid solution to obtain the PtCo / C catalyst. The proton exchange membrane fuel cell catalyst synthesized by the invention can generate relatively high power under high-potential current density, has very high mass activity, and can be conveniently applied to fuel cell automobiles.

Description

Technical field [0001] The present disclosure relates to the field of fuel cell catalysts, and more particularly to a proton exchange membrane fuel cell catalyst synthesis method. Background technique [0002] With the gradual depletion of fossil energy, human beings have gradually been in-depth on the development and research of new energy sources. Proton exchange membrane fuel cells (PEMFC) and lithium-ion batteries (LiB) are the two new types of energy useful in the 21st century, and have been studied for a long time. At present, lithium-ion batteries have a certain application in the market in the market, and it has achieved good results. [0003] However, at the same time, it also faces some questions that need to be overcome in time. After long-term use, lithium-ion battery cars, due to the aging of the material, the battery performance of the battery, has a large extent reduction in battery output, affects the use of the car, and the shorter service life also plasted with ...

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Problems solved by technology

Although in terms of output power, compared with lithium-ion batteries, it can maintain the rated output power for a longer period of time, it also faces some other problems. The service life of bipolar plates is not up to standard, and there are still problems in the transportation and storage of hydrogen energy, etc.

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