Effect of surface pretreatment on the galvanostatic oxidation of nickel

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TypeArticle
Journal titleElectrochimica Acta
Volume26
Issue6
Pages705710; # of pages: 6
AbstractThe open-circuit, cathodic reduction and anodic charging characteristics of oxide films on both electropolished and electropolished + HNO3 etched nickel electrodes have been studied in aqueous Na2SO4 solutions. While the oxide film thicknesses are approximately the same, the film on etched nickel dissolves much more rapidly than that on electropolished nickel To galvanostatically passivate etched nickel at charging rages in the range 200-200 nA cm-2 in pH 2.8 Na2SO4, the rate of oxide chemical dissolution has to be substantially decreased and this is achieved by lowering the electrolyte temperature from 25 C to 5 C...
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology
Peer reviewedYes
NRC number52285
NPARC number16285577
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Record identifier7b00dbb6-00f9-4ad2-8dea-c8530299ed2a
Record created2010-11-01
Record modified2016-05-09
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