Premium
Electrochemical Study of a SOFC with Various H 2 ‐CO‐CH 4 ‐CO 2 ‐N 2 Gaseous Mixtures
Author(s) -
Le Gal La Salle A.,
Ricoul F.,
Joubert O.,
Kerihuel A.,
Subrenat A.
Publication year - 2017
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201500211
Subject(s) - dielectric spectroscopy , polarization (electrochemistry) , electrolyte , electrochemistry , analytical chemistry (journal) , open circuit voltage , materials science , electrode , gas composition , electrical impedance , voltage , yttria stabilized zirconia , chemistry , thermodynamics , electrical engineering , composite material , physics , environmental chemistry , engineering , cubic zirconia , ceramic
This work focuses on the operation of a Ni‐YSZ‐based SOFC fueled with a synthetic mixture of gas with composition similar to that obtained from biomass gasification, i.e., mainly composed of H 2 , CO and CO 2 diluted in N 2 . Polarization, power versus intensity and electrochemical impedance spectroscopy measurements, both at open circuit voltage (OCV) and under polarization, are performed and compared. Results show that, contrary to what is observed at OCV, under current densities corresponding to standard operating conditions, the electrolyte is responsible for the main part of the resistance of the cell.