Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
Feature: The 56th Symposium on Basic Science of Ceramics: Full papers
Solid oxide fuel cell using a H2 fuel/CO2 oxidant gas system
Yuta MIYAZAKITaro SHIMONOSONOYoshihiro HIRATASoichiro SAMESHIMAKatsuhiko YAMAJI
Author information
JOURNALS FREE ACCESS

2018 Volume 126 Issue 10 Pages 777-783

Details
Abstract

This paper reports the performance of a solid oxide fuel cell with yttria-stabilized zirconia (YSZ) electrolyte, Ni–YSZ anode and (La0.8Sr0.2)0.95MnO3 (LSM) cathode or RuO2–YSZ cathode using air oxidant or a CO2 oxidant and a H2 fuel with 3% H2O at 600–800°C. The power density was higher for air oxidant than for a CO2 oxidant. The measured power density was associated with the reduction of CO2 gas to solid carbon for the RuO2–YSZ cathode. In the cell with the LSM cathode, a CO2 oxidant was reduced to the mixed state of CO molecules and solid carbon. The reactivity of O2 or CO2 molecules in their mixed oxidant gas system for the YSZ cell with the LSM cathode changed drastically at 50–70 vol % CO2 in the O2–N2–CO2 gas system. It is possible to produce an electric power and to reduce CO2 gas into solid carbon at the same time during the operation of a solid oxide fuel cells using a CO2 oxidant.

Information related to the author
© 2018 The Ceramic Society of Japan
Previous article Next article
feedback
Top