Development of a sieve printing process for the production of membrane electrode assembly for proton exchange membrane fuel cell

Quimica nova

Bonifácio, Rafael Nogueira¹  Linardi, Marcelo¹  Cuenca, Ricardo² 

[1] Instituto de Pesquisas Energéticas e Nucleares, São Paulo, Brasil;Serviço Nacional da Indústria, São Paulo, Brasil

关键词: membrane electrode assembly;    catalytic layer;    ink composition.;   

DOI  :  10.1590/S0100-40422011000100019

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Proton exchange membrane fuel cell (PEMFC) requires membrane electrode assemblies (MEA) to generate electrical energy from hydrogen and oxygen. In this study a MEA production process by sieve printing and an ink composition were developed to produce catalyst layers of MEAs. The deposition of the exact catalyst content was possible on cathodes and anodes with only one print step. The optimal ink developed shown viscosity of 2.75 Pa s, density 1.27 g cm-3, total solid content of 33.76 % and tack of 92 U.T. The electrodes prepared in only one printing step showed higher performance than those prepared in several steps.

【 授权许可】

CC BY