Métodos de preparação de nanopartículas metálicas suportadas em carbono de alta área superficial, como eletrocatalisadores em células a combustível com membrana trocadora de prótons

Química Nova

Estevam V. Spinacé²  Almir Oliveira Neto²  Egberto G. Franco²  Marcelo Linardi²  Ernesto R. Gonzalez¹ 

[1] ,Instituto de Pesquisas Energéticas e Nucleares Centro de Ciência e Tecnologia de Materiais São Paulo SP

关键词: electrocatalysts;    fuel cells;    electro-oxidation;   

DOI  :  10.1590/S0100-40422004000400020

来源: SciELO

【 摘 要 】

Fuel cells are attracting much interest as efficient and clean energy conversion devices. The main components of low temperature fuel cells are the electrocatalysts used to promote the anodic and cathodic reactions, which are based on platinum and platinum alloys. These electrocatalysts are normally prepared in the form of metal nanoparticles supported on a conductive material, usually high surface area carbon, to improve catalyst utilization and reduce cost. This work presents and comments some methods used presently to produce these electrocatalysts. The performances of the produced electrocatalysts are compared to that of state-of-the-art commercial E-TEK electrocatalysts.

【 授权许可】

CC BY-NC   
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