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Article: Electrochemical modeling of hydrogen production by proton-conducting solid oxide steam electrolyzer
Title | Electrochemical modeling of hydrogen production by proton-conducting solid oxide steam electrolyzer | ||||
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Authors | |||||
Keywords | H-SOSE J-V characteristics Proton-conducting ceramics Steam electrolysis | ||||
Issue Date | 2008 | ||||
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydene | ||||
Citation | International Journal Of Hydrogen Energy, 2008, v. 33 n. 15, p. 4040-4047 How to Cite? | ||||
Abstract | An electrochemical model was developed to study the J-V characteristics of a solid oxide steam electrolyzer based on proton-conducting electrolyte (H-SOSE) for hydrogen production. All important overpotentials, namely, activation, concentration, and ohmic overpotentials, were considered in the model. The model was validated as the simulation results agreed well with experimental data from literature. It was found that the optimal designs of H-SOSE and conventional SOSE based on oxygen ion-conducting electrolyte (O-SOSE) are totally different. For conventional O-SOSE, the anode-supported configuration has been identified as the most favorable design for high energy conversion efficiency. However, in the present study, it was found that the cathode-supported configuration was the most favorable design for H-SOSE. The electrochemical performance of the H-SOSE can be further enhanced by operating the cell at high temperature or high steam molar fraction. The electrochemical modeling analyses provide a better understanding of the working principles of H-SOSE and can serve as an effective tool for design optimization. © 2008 International Association for Hydrogen Energy. | ||||
Persistent Identifier | http://hdl.handle.net/10722/59057 | ||||
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 1.513 | ||||
ISI Accession Number ID |
Funding Information: The work described in this paper was part of an ongoing project supported by a grant from the Research Grants Council of Hong Kong, PR China (HKU7150/05E). | ||||
References |
DC Field | Value | Language |
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dc.contributor.author | Ni, M | en_HK |
dc.contributor.author | Leung, MKH | en_HK |
dc.contributor.author | Leung, DYC | en_HK |
dc.date.accessioned | 2010-05-31T03:42:09Z | - |
dc.date.available | 2010-05-31T03:42:09Z | - |
dc.date.issued | 2008 | en_HK |
dc.identifier.citation | International Journal Of Hydrogen Energy, 2008, v. 33 n. 15, p. 4040-4047 | en_HK |
dc.identifier.issn | 0360-3199 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/59057 | - |
dc.description.abstract | An electrochemical model was developed to study the J-V characteristics of a solid oxide steam electrolyzer based on proton-conducting electrolyte (H-SOSE) for hydrogen production. All important overpotentials, namely, activation, concentration, and ohmic overpotentials, were considered in the model. The model was validated as the simulation results agreed well with experimental data from literature. It was found that the optimal designs of H-SOSE and conventional SOSE based on oxygen ion-conducting electrolyte (O-SOSE) are totally different. For conventional O-SOSE, the anode-supported configuration has been identified as the most favorable design for high energy conversion efficiency. However, in the present study, it was found that the cathode-supported configuration was the most favorable design for H-SOSE. The electrochemical performance of the H-SOSE can be further enhanced by operating the cell at high temperature or high steam molar fraction. The electrochemical modeling analyses provide a better understanding of the working principles of H-SOSE and can serve as an effective tool for design optimization. © 2008 International Association for Hydrogen Energy. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydene | en_HK |
dc.relation.ispartof | International Journal of Hydrogen Energy | en_HK |
dc.subject | H-SOSE | en_HK |
dc.subject | J-V characteristics | en_HK |
dc.subject | Proton-conducting ceramics | en_HK |
dc.subject | Steam electrolysis | en_HK |
dc.title | Electrochemical modeling of hydrogen production by proton-conducting solid oxide steam electrolyzer | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0360-3199&volume=33&spage=4040&epage=4047&date=2008&atitle=Electrochemical+modeling+of+hydrogen+production+by+proton-conducting+solid+oxide+steam+electrolyzer | en_HK |
dc.identifier.email | Leung, MKH: | en_HK |
dc.identifier.email | Leung, DYC: ycleung@hku.hk | en_HK |
dc.identifier.authority | Leung, MKH=rp00148 | en_HK |
dc.identifier.authority | Leung, DYC=rp00149 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.ijhydene.2008.05.065 | en_HK |
dc.identifier.scopus | eid_2-s2.0-50349087691 | en_HK |
dc.identifier.hkuros | 150433 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-50349087691&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 33 | en_HK |
dc.identifier.issue | 15 | en_HK |
dc.identifier.spage | 4040 | en_HK |
dc.identifier.epage | 4047 | en_HK |
dc.identifier.isi | WOS:000259848100003 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Ni, M=9268339800 | en_HK |
dc.identifier.scopusauthorid | Leung, MKH=8862966600 | en_HK |
dc.identifier.scopusauthorid | Leung, DYC=7203002484 | en_HK |
dc.identifier.issnl | 0360-3199 | - |