Preparation method of fuel cell anode catalyst

Abstract

The invention discloses a preparation method of a fuel cell anode catalyst and belongs to the technical field of preparation of fuel cell nano-composite catalysts. The method specifically comprises steps of preparation of a phosphorus, nitrogen and iron co-doped carbon material carrier, loading of a palladium-copper alloy active component on the carrier and the like, and the carrier and the alloy active component have a good synergistic effect. The phosphorus, nitrogen and iron co-doped carbon material plays important roles in improving the activity of the catalyst as a novel fuel cell catalyst carrier, on one hand, copper plays a role in assisting catalysis as transition metal, the activity of the noble metal catalyst is improved, on the other hand, the dosage of noble metal is reduced, and the cost of the fuel cell catalyst is reduced, so that the catalyst has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of fuel cell catalyst preparation, and in particular relates to a preparation method of a fuel cell anode catalyst. Background technique [0002] Fuel cells have the advantages of high operating efficiency and low emissions, and are recognized as clean energy conversion systems. However, the high cost of fuel cells restricts its commercialization process, which is one of the most important key issues in this field. Catalyst is an important part of fuel cell, and its cost accounts for about 50% of the whole fuel cell. The most commonly used catalysts are noble metal catalysts, but the reserves of noble metals are limited and expensive. At the same time, the kinetics of noble metal catalysts in the anodic oxidation reaction are slow and the stability is poor. Therefore, improving performance and reducing cost are urgent problems to be solved for fuel cell catalysts. [0003] According to the surface effect ...

AI Technical Summary

Problems solved by technology

[0004] When carbon materials are used as supports, it is often necessary to introduce a modifier on the surface of the support to exert an anchoring effect on the active components of the catalyst, thereby improving the dispersion of the active components of the catalyst on the surface of the support. It is easy to attenuate in the medium, which makes the adsorption stability of the carrier interface decrease, resulting in a decrease in battery life

And this method of introducing modifiers will also increase process complexity and material costs

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