TY  - JOUR
AU  - Kulikovsky, Andrei
TI  - Why impedance of the gas diffusion layer in a PEM fuel cell differs from the Warburg finite-length impedance?
JO  - Electrochemistry communications
VL  - 84
SN  - 1388-2481
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2018-00049
SP  - 28 - 31
PY  - 2017
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000413740300007
DO  - DOI:10.1016/j.elecom.2017.09.014
UR  - https://juser.fz-juelich.de/record/841741
ER  -