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Article: Cyclic voltammetric investigation of the formation of intermetallic phases at a LiAl electrode in methyl acetate

TitleCyclic voltammetric investigation of the formation of intermetallic phases at a LiAl electrode in methyl acetate
Authors
Issue Date1992
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0021-891X
Citation
Journal Of Applied Electrochemistry, 1992, v. 22 n. 3, p. 255-261 How to Cite?
AbstractThe formation of various Li/Al intermetallic phases at the LiAl electrode in methyl acetate was studied using cyclic voltammetry. The thickness of the α phase formed initially was estimated using the deposition and stripping method to be 1.1 nm. Repetitive cycling at the α or β phase potential led to a drastic increase in current over the first ten cycles before reaching a steady state. The formation of the β phase depended critically on the deposition potential and its presence at the electrode surface led to enhanced current in the reverse sweep, increased acceptance of deposited lithium, roughening and development of the area of the electrode upon cycling. The above effects were attributed to the difference in the lattice structure of the β phase as compared to the α phase, which greatly affected the electrode kinetics upon phase transition. The deposition of the more reactive LiAl alloys at more cathodic potential, namely -3.80 V, led to the formation of a passivating film which was broken down at more cathodic potential when the electrode surface had undergone vigorous chemical reaction with the solvent. Methyl acetoacetate was identified using i.r., n.m.r., u.v. and electrochemical techniques to be the major reaction product and a possible reaction mechanism was proposed. © 1992 Chapman & Hall.
Persistent Identifierhttp://hdl.handle.net/10722/167502
ISSN
2015 Impact Factor: 2.223
2015 SCImago Journal Rankings: 0.676
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_US
dc.contributor.authorLai, HCen_US
dc.date.accessioned2012-10-08T03:07:46Z-
dc.date.available2012-10-08T03:07:46Z-
dc.date.issued1992en_US
dc.identifier.citationJournal Of Applied Electrochemistry, 1992, v. 22 n. 3, p. 255-261en_US
dc.identifier.issn0021-891Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/167502-
dc.description.abstractThe formation of various Li/Al intermetallic phases at the LiAl electrode in methyl acetate was studied using cyclic voltammetry. The thickness of the α phase formed initially was estimated using the deposition and stripping method to be 1.1 nm. Repetitive cycling at the α or β phase potential led to a drastic increase in current over the first ten cycles before reaching a steady state. The formation of the β phase depended critically on the deposition potential and its presence at the electrode surface led to enhanced current in the reverse sweep, increased acceptance of deposited lithium, roughening and development of the area of the electrode upon cycling. The above effects were attributed to the difference in the lattice structure of the β phase as compared to the α phase, which greatly affected the electrode kinetics upon phase transition. The deposition of the more reactive LiAl alloys at more cathodic potential, namely -3.80 V, led to the formation of a passivating film which was broken down at more cathodic potential when the electrode surface had undergone vigorous chemical reaction with the solvent. Methyl acetoacetate was identified using i.r., n.m.r., u.v. and electrochemical techniques to be the major reaction product and a possible reaction mechanism was proposed. © 1992 Chapman & Hall.en_US
dc.languageengen_US
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0021-891Xen_US
dc.relation.ispartofJournal of Applied Electrochemistryen_US
dc.titleCyclic voltammetric investigation of the formation of intermetallic phases at a LiAl electrode in methyl acetateen_US
dc.typeArticleen_US
dc.identifier.emailFung, YS:ysfung@hku.hken_US
dc.identifier.authorityFung, YS=rp00697en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/BF01030186en_US
dc.identifier.scopuseid_2-s2.0-0026838124en_US
dc.identifier.volume22en_US
dc.identifier.issue3en_US
dc.identifier.spage255en_US
dc.identifier.epage261en_US
dc.identifier.isiWOS:A1992HE54200011-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridFung, YS=13309754700en_US
dc.identifier.scopusauthoridLai, HC=7201967297en_US

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