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Degradation of proton exchange membrane by Pt dissolved/deposited in fuel cells

โœ Scribed by Taehee Kim; Ho Lee; Woojong Sim; Jonghyun Lee; Saehoon Kim; Taewon Lim; Kwonpil Park

Book ID
107514276
Publisher
Springer US
Year
2009
Tongue
English
Weight
712 KB
Volume
26
Category
Article
ISSN
0256-1115

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High performance proton exchange membran
High performance proton exchange membrane fuel cells with sputter-deposited Pt layer electrodes
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An ultra-low platinum (Pt) loading (0.1 mg cm') electrocatalyst layer (1 pm thick) was deposited on an uncatalyzed gas diffusion electrode utilizing the sputter-deposition technique. The performance of the proton exchange membrane fuel cell (PEMFC) with this electrode for the cathode (the anode was

Degradation of proton exchange membrane
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The CO and CO 2 poisoning effects on the degradation of cell performance of proton exchange membrane fuel cell (PEMFC) under transient stage were investigated. The mechanism of CO poisoning lies in the preferential adsorbing of CO to the platinum surface and the blocking of active sites of hydrogen.