期刊
JOURNAL OF POWER SOURCES
卷 127, 期 1-2, 页码 230-233出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2003.09.018
关键词
MEA; catalyst; slurry; solvent; PEMFC
The effects of various organic solvents on the performance of polymer electrolyte membrane fuel cell (PEMFC) electrode were investigated. The five catalyst inks were prepared by mixing the 20 wt.% Pt/C, 5 wt.% solubilized Nation, tetrabutylammonium hydroxide (TBAOH), and different organic solvents such as normal butyl acetate, iso-amyl alcohol, diethyl oxalate, ethylene glycol and ethylene glycol dimethyl ether. Membrane electrode assemblies were prepared by using a transfer method. From the measurements of performances of single cells, the most suitable solvent was selected and the results were discussed in terms of distribution of Nation ionomer on Pt particles and robustness of the catalyst structure. In addition, reactant transport through electrodes was discussed in relation with decomposition of the solvents. (C) 2003 Elsevier B.V. All rights reserved.
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