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Article: An electrochemical model of a solid oxide steam electrolyzer for hydrogen production

TitleAn electrochemical model of a solid oxide steam electrolyzer for hydrogen production
Authors
Issue Date2006
PublisherWiley - VCH Verlag GmbH & Co KGaA.
Citation
Chemical Engineering and Technology, 2006, v. 29 n. 5, p. 636-642 How to Cite?
AbstractAn electrochemical model was developed to simulate the J-V characteristics of a solid oxide steam electrolyzer (SOSE) used for hydrogen production. Activation, concentration, and ohmic overpotentials were considered as the main factors for voltage loss. The Butler-Volmer equation, Fick's model, and Ohm's law were applied to determine the overpotentials of a SOSE cell. The simulation results were compared with experimental data from the literature and good agreement was obtained. Additionally, parametric modeling analyses were conducted to study how the operating temperature and gas composition affected the electrical characteristics. It was found that the voltage loss could be reduced by increasing the operating temperature and steam molar fraction. It was also observed that an anode-supported SOSE cell exhibited a higher hydrogen production efficiency than electrolyte-supported and cathode-supported cells. The electrochemical model can be used to perform further analysis in order to further understand the principles of SOSE hydrogen production, and to optimize SOSE cell and system designs. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Persistent Identifierhttp://hdl.handle.net/10722/156825
ISSN
2015 Impact Factor: 2.385
2015 SCImago Journal Rankings: 0.633
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNi, Men_HK
dc.contributor.authorLeung, MKHen_HK
dc.contributor.authorLeung, DYCen_HK
dc.date.accessioned2012-08-08T08:44:07Z-
dc.date.available2012-08-08T08:44:07Z-
dc.date.issued2006en_HK
dc.identifier.citationChemical Engineering and Technology, 2006, v. 29 n. 5, p. 636-642en_HK
dc.identifier.issn0930-7516en_HK
dc.identifier.urihttp://hdl.handle.net/10722/156825-
dc.description.abstractAn electrochemical model was developed to simulate the J-V characteristics of a solid oxide steam electrolyzer (SOSE) used for hydrogen production. Activation, concentration, and ohmic overpotentials were considered as the main factors for voltage loss. The Butler-Volmer equation, Fick's model, and Ohm's law were applied to determine the overpotentials of a SOSE cell. The simulation results were compared with experimental data from the literature and good agreement was obtained. Additionally, parametric modeling analyses were conducted to study how the operating temperature and gas composition affected the electrical characteristics. It was found that the voltage loss could be reduced by increasing the operating temperature and steam molar fraction. It was also observed that an anode-supported SOSE cell exhibited a higher hydrogen production efficiency than electrolyte-supported and cathode-supported cells. The electrochemical model can be used to perform further analysis in order to further understand the principles of SOSE hydrogen production, and to optimize SOSE cell and system designs. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en_HK
dc.languageengen_US
dc.publisherWiley - VCH Verlag GmbH & Co KGaA.-
dc.relation.ispartofChemical Engineering and Technologyen_HK
dc.titleAn electrochemical model of a solid oxide steam electrolyzer for hydrogen productionen_HK
dc.typeArticleen_HK
dc.identifier.emailLeung, MKH: mkhleung@hkucc.hku.hken_HK
dc.identifier.emailLeung, DYC: ycleung@hku.hken_HK
dc.identifier.authorityLeung, MKH=rp00148en_HK
dc.identifier.authorityLeung, DYC=rp00149en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/ceat.200500378en_HK
dc.identifier.scopuseid_2-s2.0-33646728599en_HK
dc.identifier.hkuros142187-
dc.identifier.hkuros117373-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33646728599&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume29en_HK
dc.identifier.issue5en_HK
dc.identifier.spage636en_HK
dc.identifier.epage642en_HK
dc.identifier.isiWOS:000237791600014-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridNi, M=9268339800en_HK
dc.identifier.scopusauthoridLeung, MKH=8862966600en_HK
dc.identifier.scopusauthoridLeung, DYC=7203002484en_HK

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