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Conference Paper: Modeling of a micro auto-electrolytic cell for hydrogen production

TitleModeling of a micro auto-electrolytic cell for hydrogen production
Authors
KeywordsArbitrary lagrangian eulerian
Developed model
Dynamic mesh
Electrochemical systems
Electrode reactions
Issue Date2012
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydene
Citation
Symposium on Hydrogen Production and Applications at the 240th American Chemical Society National Meeting, August 22-26, 2010, Boston, Massachusetts, USA. In International Journal of Hydrogen Energy, 2012, v. 37 n. 13, p. 10002-10009 How to Cite?
AbstractThis paper numerically investigates a portable fuel processor, i.e., micro-scale auto-electrolytic cell (AEC), for on-site hydrogen production in an economical, spontaneous and controllable manner. The AEC in this study consists of a galvanic couple of magnesium and steel in sodium chloride solution. A single Laplace's equation with boundary conditions determined from electrode reaction kinetics is solved for the potential inside the AEC. A dynamic mesh model based on arbitrary Lagrangian-Eulerian description is applied to track the moving boundary of the dissolving magnesium anode. Based on the model, the spatio-temporal distributions of potential, current density, hydrogen generation rate and other important parameters associated with the AEC are obtained. A great enhancement of hydrogen generation rate is found achievable by miniaturizing the AEC. In addition, parametric analyses are also performed focusing on important geometric factors. The study suggests that it would be better to arrange a number of micro-scale AEC units together to attain a desired total hydrogen output. The present study contributes to a better understanding of the hydrogen generation characteristics of AECs, hence facilitates their future development. The developed model can also serve as a useful tool to study other similar electrochemical systems. Copyright © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/157207
ISSN
2015 Impact Factor: 3.205
2015 SCImago Journal Rankings: 1.330
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Hen_US
dc.contributor.authorLeung, DYCen_US
dc.contributor.authorXuan, Jen_US
dc.date.accessioned2012-08-08T08:45:49Z-
dc.date.available2012-08-08T08:45:49Z-
dc.date.issued2012en_US
dc.identifier.citationSymposium on Hydrogen Production and Applications at the 240th American Chemical Society National Meeting, August 22-26, 2010, Boston, Massachusetts, USA. In International Journal of Hydrogen Energy, 2012, v. 37 n. 13, p. 10002-10009en_US
dc.identifier.issn0360-3199en_US
dc.identifier.urihttp://hdl.handle.net/10722/157207-
dc.description.abstractThis paper numerically investigates a portable fuel processor, i.e., micro-scale auto-electrolytic cell (AEC), for on-site hydrogen production in an economical, spontaneous and controllable manner. The AEC in this study consists of a galvanic couple of magnesium and steel in sodium chloride solution. A single Laplace's equation with boundary conditions determined from electrode reaction kinetics is solved for the potential inside the AEC. A dynamic mesh model based on arbitrary Lagrangian-Eulerian description is applied to track the moving boundary of the dissolving magnesium anode. Based on the model, the spatio-temporal distributions of potential, current density, hydrogen generation rate and other important parameters associated with the AEC are obtained. A great enhancement of hydrogen generation rate is found achievable by miniaturizing the AEC. In addition, parametric analyses are also performed focusing on important geometric factors. The study suggests that it would be better to arrange a number of micro-scale AEC units together to attain a desired total hydrogen output. The present study contributes to a better understanding of the hydrogen generation characteristics of AECs, hence facilitates their future development. The developed model can also serve as a useful tool to study other similar electrochemical systems. Copyright © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydeneen_US
dc.relation.ispartofInternational Journal of Hydrogen Energyen_US
dc.subjectArbitrary lagrangian eulerianen_US
dc.subjectDeveloped modelen_US
dc.subjectDynamic meshen_US
dc.subjectElectrochemical systemsen_US
dc.subjectElectrode reactions-
dc.titleModeling of a micro auto-electrolytic cell for hydrogen productionen_US
dc.typeConference_Paperen_US
dc.identifier.emailWang, H: wanghz@graduate.hku.hken_US
dc.identifier.emailLeung, DYC: ycleung@hku.hk-
dc.identifier.emailXuan, J: xuanj@hku.hk-
dc.identifier.authorityLeung, DYC=rp00149en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.ijhydene.2012.04.019en_US
dc.identifier.scopuseid_2-s2.0-84862158149en_US
dc.identifier.hkuros205274-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84862158149&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume37en_US
dc.identifier.issue13en_US
dc.identifier.spage10002en_US
dc.identifier.epage10009en_US
dc.identifier.isiWOS:000306038800009-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridXuan, J=25722402300en_US
dc.identifier.scopusauthoridLeung, DYC=7203002484en_US
dc.identifier.scopusauthoridWang, H=36844957100en_US
dc.identifier.citeulike10642094-

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