Journal Article

FZJ-2018-00049

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Why impedance of the gas diffusion layer in a PEM fuel cell differs from the Warburg finite-length impedance?

Kulikovsky, A. (Corresponding author)FZJ*

2017
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.elecom.2017.09.014

Abstract: We report a simple physics-based model leading to an analytical expression for impedance of the gas-diffusion layer (GDL) in a PEM fuel cell. We show that this expression differs from the classic Warburg finite-length impedance due to large double layer capacitance Cdl of a porous catalyst layer the GDL is attached to. It follows that the Warburg solution is obtained for the transport layer attached to a planar electrode with vanishingly small Cdl.

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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 2017

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

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