Journal Article

FZJ-2019-02957

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The effect of Nafion film on the cathode catalyst layer performance in a low–Pt PEM fuel cell

Kulikovsky, A. (Corresponding author)FZJ*

2019
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/22254  doi:10.1016/j.elecom.2019.05.003

Abstract: A single–pore model for performance of the cathode catalyst layer (CCL) in a PEM fuel cell is developed. The model takes into account oxygen transport though the CCL depth and through the thin Nafion film, separating the pore from Pt/C species. Analytical solution to model equations reveals the limiting current density $j^{lim}_{N}$ due to oxygen transport through the Nafion film. Further, $j^{lim}_{N}$ linearly depends of the CCL thickness, i.e., the thinner the CCL, the lower $j^{lim}_{N}$. This result may explain unexpected lowering of low–Pt loaded catalyst layers performance, which has been widely discussing in literature.

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Contributing Institute(s):

1. Elektrochemische Verfahrenstechnik (IEK-3)

Research Program(s):

1. 135 - Fuel Cells (POF3-135) (POF3-135)

Appears in the scientific report 2019

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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