%0 Journal Article
%A Kulikovsky, Andrei
%T Why impedance of the gas diffusion layer in a PEM fuel cell differs from the Warburg finite-length impedance?
%J Electrochemistry communications
%V 84
%@ 1388-2481
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2018-00049
%P 28 - 31
%D 2017
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000413740300007
%R 10.1016/j.elecom.2017.09.014
%U https://juser.fz-juelich.de/record/841741