Desenvolvimento de conjunto membrana-eletrodos para célula a combustível de metanol direto passiva

Química Nova

Eli Carlos Lisboa Ferreira²  Fabrício Monteiro Quadros²  José Pio Iúdice De Souza²  Auro Atsushi Tanaka¹ 

[1] ,Universidade Federal do Pará Instituto de Ciências Exatas e Naturais Faculdade de QuímicaBelém PA ,Brasil

关键词: passive DMFC;    MEA;    methanol fuel cell;   

DOI  :  10.1590/S0100-40422010000600018

来源: SciELO

【 摘 要 】

Direct methanol fuel cells (DMFCs) without external pumps or other ancillary devices for fuel and oxidant supply are known as passive DMFCs and are potential candidates to replace lithium-ion batteries in powering portable electronic devices. This paper presents the results obtained from a membrane electrode assembly (MEA) specifically designed for passive DMFCs. Appropriated electrocatalysts were prepared and the effect of their loadings was investigated. Two types of gas diffusion layers (GDL) were also tested. The influence of the methanol concentration was analyzed in each case. The best MEA performance presented a maximum power density of 11.94 mW cm-2.

【 授权许可】

CC BY-NC   
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