期刊
JOURNAL OF POWER SOURCES
卷 185, 期 2, 页码 734-739出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2008.08.003
关键词
Fuel cell; Catalyst degradation; Transmission electron microscopy; Accelerated electrocatalyst testing
资金
- DFG [ARE852/1-1]
- Austrian FWF
A novel, non-destructive transmission electron microscopy technique is introduced, which enables the observation of the identical locations of a catalyst before and after electrochemical treatment (IL-TEM). The significance of this method is exemplified by the analysis of a standard, commercially available carbon supported platinum catalyst. We demonstrate that the observed changes of the catalyst particles are a direct consequence of the applied electrochemical treatment; and that selected catalyst regions are representative for the catalyst as a whole. Different electrochemical treatments were applied in order to discuss the potential of the method for studying processes of catalyst degradation. (C) 2008 Elsevier B.V. All rights reserved.
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