Desenvolvimento de processo de produção de conjuntos eletrodo-membrana-eletrodo para células a combustível baseadas no uso de membrana polimérica condutora de prótons (PEMFC) por impressão a tela

Química Nova

Rafael Nogueira Bonifácio²  Marcelo Linardi²  Ricardo Cuenca¹ 

[1] ,Instituto de Pesquisas Energéticas e NuclearesSão Paulo SP ,Brasil

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

DOI  :  10.1590/S0100-40422011000100019

来源: SciELO

【 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-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License