TY  - JOUR
AU  - Eikerling, Michael
AU  - Kulikovsky, Andrei
AU  - Kadyk, Thomas
AU  - Sun, Ying
TI  - A Model for the Concentration Admittance of a Polymer Electrolyte Fuel Cell
JO  - The journal of physical chemistry  / C
VL  - 126
IS  - 33
SN  - 1932-7447
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2022-02946
SP  - 14075 - 14081
PY  - 2022
AB  - A dynamic model for the concentration admittance of a polymer electrolyte fuel cell is presented. The model takes into account oxygen transport in the cathode channel, the gas diffusion layer, and the cathode catalyst layer. An analytical solution for the concentration admittance is derived. We observe that the admittance at the air channel outlet is not affected by faradaic reactions, and it contains information on the oxygen transport coefficients in the cell. The admittance measured at the air channel outlet can be fitted using the formula obtained in this work to extract the oxygen transport coefficients. Practical methods for measuring the concentration admittance are proposed.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000848129700001
DO  - DOI:10.1021/acs.jpcc.2c04131
UR  - https://juser.fz-juelich.de/record/909004
ER  -