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High performance proton exchange membrane fuel cells with sputter-deposited Pt layer electrodes by Shinichi Hirano; Junbom Kim; Supramaniam Srinivasan is a Engineering article available to read on EtoBox.

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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 a conventional low Pt loading E-TEK electrode, 20% PtjC, 0.4 mg cm') showed a good oxygen electrode performance, even at high current densities. The performance of the oxygen electrode was comparable to that of a standard E-TEK electrode, but was somewhat lower than the standard E-TEK electrode with a sputtered Pt layer. However, the potential of the PEMFC with this cathode showed mass transport limitations because of the unexpectedly high anode overpotentials at higher current densities.

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Author

Shinichi Hirano; Junbom Kim; Supramaniam Srinivasan

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0013-4686)

Published

1997

Language

EN

Field

Engineering (Physical Sciences)