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dc.contributor.authorParker, Gretel K
dc.contributor.authorHope, Gregory A
dc.contributor.authorWoods, Ronald
dc.contributor.editorD C Prieve, D N Furlong, M Adler
dc.date.accessioned2017-05-03T14:14:28Z
dc.date.available2017-05-03T14:14:28Z
dc.date.issued2008
dc.date.modified2009-10-21T05:37:36Z
dc.identifier.issn0927-7757
dc.identifier.doi10.1016/j.colsurfa.2008.04.054
dc.identifier.urihttp://hdl.handle.net/10072/26190
dc.description.abstractGold decoration of chalcopyrite surfaces has been shown to stimulate surface enhancement of Raman scattering and this enables oxidation products, undetectable using normal Raman spectroscopy, to be investigated. Electroless deposition, sputtering and evaporative deposition facilitated SERS. In situ potentiodynamic investigations demonstrated similar oxidative product/s on the chalcopyrite surface in sulfate or chloride aqueous acid solutions. The product/s appeared to be amorphous and commenced S S bonding in the transpassive potential region. The SS bands from the oxidized surface were broad and at a lower Raman shift than elemental sulfur, indicative of an aging metal-deficient remnant sulfide lattice. The oxidation product/s was not consistent with the formation of polysulfides or polythionates. Ex situ investigations of oxidised chalcopyrite surfaces and model systems corroborated in situ data, in that the species detected were oxidation products of the chalcopyrite, rather than artifacts of sample preparation.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_AU
dc.publisherElsevier BV
dc.publisher.placeNetherlands
dc.publisher.urihttp://www.elsevier.com/wps/find/homepage.cws_home
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom132
dc.relation.ispartofpageto140
dc.relation.ispartofissue1-3
dc.relation.ispartofjournalColloids and Surfaces A: Physicochemical and Engineering Aspects
dc.relation.ispartofvolume325
dc.rights.retentionY
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchcode03
dc.subject.fieldofresearchcode09
dc.subject.fieldofresearchcode02
dc.titleGold-enhanced Raman observation of chalcopyrite leaching
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2008
gro.hasfulltextNo Full Text
gro.griffith.authorHope, Gregory A.
gro.griffith.authorWoods, Ronald
gro.griffith.authorHeber, Gretel


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