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Article: Mathematical modelling of proton-conducting solid oxide fuel cells and comparison with oxygen-ion-conducting counterpart

TitleMathematical modelling of proton-conducting solid oxide fuel cells and comparison with oxygen-ion-conducting counterpart
Authors
KeywordsMass transport
Overpotential losses
Porous media
Proton-conducting electrolyte
SOFC
Issue Date2007
Citation
Fuel Cells, 2007, v. 7 n. 4, p. 269-278 How to Cite?
AbstractProton-conducting solid oxide fuel cells (H-SOFC), using a proton-conducting electrolyte, potentially have higher maximum energy efficiency than conventional oxygen-ion-conducting solid oxide fuel cells (O-SOPC). It is important to theoretically study the current-voltage (J-V) characteristics in detail in order to facilitate advanced development of H-SOFC. In this investigation, a parametric modelling analysis was conducted. An electrochemical H-SOFC model was developed and it was validated as the simulation results agreed well with experimental data published in the literature. Subsequently, the analytical comparison between H-SOFC and O-SOFC was made to evaluate how the use of 1 different electrolytes could affect the SOFC performance. In addition to different ohmic overpotentials at the electrolyte, the concentration overpotentials of an H-SOFC were prominently different from those of an O-SOFC. H-SOFC had very low anode concentration overpotential but suffered seriously from high cathode concentration overpotential. The differences found indicated that H-SOFC possessed fuel cell characteristics different from conventional O-SOFC. Particular H-SOFC electrochemical modelling and parametric microstructural analysis are essential for the enhancement of H-SOFC performance. Further analysis of this investigation showed that the H-SOFC performance could be enhanced by increasing the gas transport in the cathode with high porosity, large pore size and low tortuosity. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
Persistent Identifierhttp://hdl.handle.net/10722/156911
ISSN
2015 Impact Factor: 1.769
2015 SCImago Journal Rankings: 0.723
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNi, Men_HK
dc.contributor.authorLeung, MKHen_HK
dc.contributor.authorLeung, DYCen_HK
dc.date.accessioned2012-08-08T08:44:31Z-
dc.date.available2012-08-08T08:44:31Z-
dc.date.issued2007en_HK
dc.identifier.citationFuel Cells, 2007, v. 7 n. 4, p. 269-278en_HK
dc.identifier.issn1615-6846en_HK
dc.identifier.urihttp://hdl.handle.net/10722/156911-
dc.description.abstractProton-conducting solid oxide fuel cells (H-SOFC), using a proton-conducting electrolyte, potentially have higher maximum energy efficiency than conventional oxygen-ion-conducting solid oxide fuel cells (O-SOPC). It is important to theoretically study the current-voltage (J-V) characteristics in detail in order to facilitate advanced development of H-SOFC. In this investigation, a parametric modelling analysis was conducted. An electrochemical H-SOFC model was developed and it was validated as the simulation results agreed well with experimental data published in the literature. Subsequently, the analytical comparison between H-SOFC and O-SOFC was made to evaluate how the use of 1 different electrolytes could affect the SOFC performance. In addition to different ohmic overpotentials at the electrolyte, the concentration overpotentials of an H-SOFC were prominently different from those of an O-SOFC. H-SOFC had very low anode concentration overpotential but suffered seriously from high cathode concentration overpotential. The differences found indicated that H-SOFC possessed fuel cell characteristics different from conventional O-SOFC. Particular H-SOFC electrochemical modelling and parametric microstructural analysis are essential for the enhancement of H-SOFC performance. Further analysis of this investigation showed that the H-SOFC performance could be enhanced by increasing the gas transport in the cathode with high porosity, large pore size and low tortuosity. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.en_HK
dc.languageengen_US
dc.relation.ispartofFuel Cellsen_HK
dc.subjectMass transporten_HK
dc.subjectOverpotential lossesen_HK
dc.subjectPorous mediaen_HK
dc.subjectProton-conducting electrolyteen_HK
dc.subjectSOFCen_HK
dc.titleMathematical modelling of proton-conducting solid oxide fuel cells and comparison with oxygen-ion-conducting counterparten_HK
dc.typeArticleen_HK
dc.identifier.emailLeung, MKH:en_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/fuce.200600049en_HK
dc.identifier.scopuseid_2-s2.0-34548013064en_HK
dc.identifier.hkuros142199-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34548013064&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume7en_HK
dc.identifier.issue4en_HK
dc.identifier.spage269en_HK
dc.identifier.epage278en_HK
dc.identifier.isiWOS:000248849000002-
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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