DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, TH | ko |
dc.contributor.author | Pyun, Su Il | ko |
dc.date.accessioned | 2013-02-28T05:59:51Z | - |
dc.date.available | 2013-02-28T05:59:51Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1998 | - |
dc.identifier.citation | ELECTROCHIMICA ACTA, v.43, no.5-6, pp.471 - 478 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | http://hdl.handle.net/10203/73138 | - |
dc.description.abstract | The hydrogen transport through a LaNi4.7Al0.3Hx porous electrode in the coexistence of two hydrogen-poor phase alpha-LaNi4.7Al0.3Hx and hydrogen-rich phase beta-LaNi4.7Al0.3Hx has been investigated during the hydrogen discharging from the electrode by analysing current decay transients supplemented by a cyclic polarization curve and open-circuit potential transients. From the occurrence of three-staged current decay transients, the beta-LaNi4.7Al0.3Hx patches were sporadically embedded in the alpha-phase matrix during the hydrogen charging into the electrode at the overpotentials between -0.01 and -0.03 V (RHE) and the beta-LaNi4.7Al0.3Hx layer was completely embedded in matrix below -0.03 V (RHE). The hydrogen transport through the spherical symmetric LaNi4.7Al0.3Hx particle proceeded by the same mechanism of the "up-hill diffusion" coupled with interface-controlled phase boundary movement, as did the hydrogen transport through the plane symmetric Pd foil electrode. The current decay transient technique employed in this work proved to be a more informative approach to evaluation of the charge-discharge performance of the metal hydride electrode in practical use of the nickel/metal hydride secondary battery. (C) 1997 Published by Elsevier Science Ltd. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | STRESS-INDUCED DIFFUSION | - |
dc.subject | BATTERIES | - |
dc.subject | ALLOY | - |
dc.subject | PERMEATION | - |
dc.subject | MEMBRANES | - |
dc.title | Hydrogen transport through LaNi4.7Al0.3Hx porous electrode in the coexistence of two hydride phases (alpha- and beta-phases): current transient analysis | - |
dc.type | Article | - |
dc.identifier.wosid | 000071023600004 | - |
dc.type.rims | ART | - |
dc.citation.volume | 43 | - |
dc.citation.issue | 5-6 | - |
dc.citation.beginningpage | 471 | - |
dc.citation.endingpage | 478 | - |
dc.citation.publicationname | ELECTROCHIMICA ACTA | - |
dc.contributor.nonIdAuthor | Yang, TH | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | alpha- and beta-LaNi4.7Al0.3Hx | - |
dc.subject.keywordAuthor | current decay transient | - |
dc.subject.keywordAuthor | hydrogen transport | - |
dc.subject.keywordAuthor | phase boundary movement | - |
dc.subject.keywordAuthor | performance evaluation | - |
dc.subject.keywordPlus | STRESS-INDUCED DIFFUSION | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | ALLOY | - |
dc.subject.keywordPlus | PERMEATION | - |
dc.subject.keywordPlus | MEMBRANES | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.