Thirty minutes laser calcination method for the preparation of DSA (R) type oxide electrodes

dc.creatorPelegrino, RRL
dc.creatorVicentin, LC
dc.creatorDe Andrade, AR
dc.creatorBertazzoli, R
dc.date2002
dc.dateFEB
dc.date2014-11-16T07:48:43Z
dc.date2015-11-26T17:23:57Z
dc.date2014-11-16T07:48:43Z
dc.date2015-11-26T17:23:57Z
dc.date.accessioned2018-03-29T00:11:16Z
dc.date.available2018-03-29T00:11:16Z
dc.identifierElectrochemistry Communications. Elsevier Science Inc, v. 4, n. 2, n. 139, n. 142, 2002.
dc.identifier1388-2481
dc.identifierWOS:000176729200010
dc.identifier10.1016/S1388-2481(01)00295-8
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/58205
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/58205
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/58205
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1283958
dc.descriptionIn this paper, a new approach for the preparation of dimensionally stable anodes DSA(R) type oxide electrodes, using a CO2 laser as a heat source, is proposed. Commercial composition of (TiO2)(0.7)(RuO2)(0.3) was used for this feasibility study in which thermal decomposition of precursor chlorides, for the growth of a coating 2-3 mum thick, is carried out in 30 min. The resulting oxide layer presented the usual cracked-mud morphology that lasted 8 h in an accelerated service life test at 400 mA cm(-2), in a H2SO4 1 M solution. The results involving the effects of laser beam power and scan rate are examined. Voltammetric anodic charge was maximized by the combination of 15 W beampower, focal distance of 210 mm and beam scan rate of 35 mm s(-1). By cycling potential between 0.2 and 1.1 V vs SCE the oxide coating behaved as a capacitor capable of being charged and discharged reversibly and the cathodic/anodic charge ratio remained close to one. Currents related to oxygen evolution reaction were observed after 1.37 V vs SCE. (C) 2002 Elsevier Science B.V. All rights reserved.
dc.description4
dc.description2
dc.description139
dc.description142
dc.languageen
dc.publisherElsevier Science Inc
dc.publisherNew York
dc.publisherEUA
dc.relationElectrochemistry Communications
dc.relationElectrochem. Commun.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectoxide electrodes
dc.subjectDSA (R) type electrodes
dc.subjectlaser surface treatment
dc.subjectelectrodes for oxygen evolution
dc.subjectSurface-properties
dc.subjectService Life
dc.subjectDioxide
dc.subjectOxidation
dc.subjectBehavior
dc.subjectTi
dc.titleThirty minutes laser calcination method for the preparation of DSA (R) type oxide electrodes
dc.typeArtículos de revistas


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