Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8892
Title: Thermodynamic analysis of methane-fueled solid oxide fuel cells considering co electrochemical oxidation
Authors: Sun, Q
Zheng, K
Ni, M 
Keywords: Hydrocarbon fuels
Oxygen ion conductor
Proton conductor
Solid oxide fuel cell
Thermodynamics
Issue Date: Sep-2014
Publisher: Chemical Industry Press
Source: Chinese journal of chemical engineering, Sept. 2014, v. 22, no. 9, p. 1033-1037 How to cite?
Journal: Chinese Journal of Chemical Engineering 
Abstract: Thermodynamic analyses in the literature have shown that solid oxide fuel cells (SOFCs) with proton conducting electrolyte (H-SOFC) exhibited higher performance than SOFC with oxygen ion conducting electrolyte (O-SOFC). However, these studies only consider H2 electrochemical oxidation and totally neglect the contribution of CO electrochemical oxidation in O-SOFC. In this short communication, a thermodynamic model is developed to compare the theoretically maximum efficiencies of H-SOFC and O-SOFC, considering the electrochemical oxidation of CO in O-SOFC anode. It is found that O-SOFC exhibits a higher maximum efficiency than H-SOFC due to the contribution from CO electrochemical oxidation, which is contrary to the common understanding of electrolyte effect on SOFC performance. The effects of operating temperature and fuel utilization factor on the theoretical efficiency of SOFC are also analyzed and discussed.
URI: http://hdl.handle.net/10397/8892
ISSN: 1004-9541
DOI: 10.1016/j.cjche.2014.06.018
Rights: Posted with permission of the publisher.
© 2014 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
NOTICE: this is the author’s version of a work that was accepted for publication in Chinese Journal of Chemical Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chinese Journal of Chemical Engineering, vol 22, issue 9, (September 2014) DOI:10.1016/j.cjche.2014.06.018
Appears in Collections:Journal/Magazine Article

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