Electrochemical Study of a SOFC with Various H sub(2)-CO-CH sub(4)-CO sub(2)-N sub(2) Gaseous Mixtures

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 sub(2), CO and CO sub(2) diluted in N sub(2). Polarization, power versus intensity and electrochemical impe...

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Bibliographic Details
Published in:Fuel cells (Weinheim an der Bergstrasse, Germany) Germany), 2017-04, Vol.17 (2), p.144-150
Main Authors: Le Gal La Salle, A, Ricoul, F, Joubert, O, Kerihuel, A, Subrenat, A
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon monoxide
Electrolytes
Electrolytic cells
Open circuit voltage
Polarization
Solid oxide fuel cells
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Summary: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 sub(2), CO and CO sub(2) diluted in N sub(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.
ISSN:1615-6846
1615-6854
DOI:10.1002/fuce.201500211