期刊
ELECTROCHIMICA ACTA
卷 53, 期 21, 页码 6111-6116出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2007.12.008
关键词
polymer electrolyte membrane fuel cell; sputtering; membrane electrode assembly; catalyst layer; spraying
For this study, catalyst layers for polymer electrolyte membrane fuel cells (PEMFC) were prepared by spraying and sputtering to deposit Pt amount of 0.1 and 0.01 mg cm(-2), respectively. These Pt layers were then assembled to fabricate membrane electrode assemblies (MEA) having either single- or double-layered catalysts. The PEM fuel cell with double layers showed a current density of 777 mA cm(-2) at a cell voltage of 0.6 V, which is a higher current density than state-of-the-art fuel cells at 643 mA cm(-2). These results indicate that Pt loading in state-of-the-art PEMFCs could be reduced by approximately 50% with no performance loss by using both spraying and sputtering method in the MEA fabrication process. (C) 2007 Elsevier Ltd. All rights reserved.
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