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Molybdenite as a rhenium carrier : first results of a spectroscopic approach using synchrotron radiation

2013-09Journal article Open access
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dc.contributor.authorSilva, Teresa
dc.contributor.authorFigueiredo, M. Ondina
dc.contributor.authorde Oliveira, Daniel Pipa Soares
dc.contributor.authorVeiga, JP
dc.contributor.authorBatista, Maria Joao
dc.date.accessioned2014-01-11T18:08:54Z
dc.date.available2014-01-11T18:08:54Z
dc.date.issued2013-09
dc.description.abstractThe chemical and physical properties of rhenium render it a highly demanded metal for advanced applications in important industrial fields. This very scarce element occurs mainly in ores of porphyry copper-molybdenum deposits associated with the mineral molybdenite, MoS2, but it has also been found in granite pegmatites and quartz veins as well as in volcanic gases. Molybdenite is a typical polytype mineral which crystal structure is based on the stacking of [S-Mo-S] with molybdenum in prismatic coordination by sulphide anions; however, it is not yet clearly established if rhenium ions replace Mo4+ cations in a disordered way or else, if such replacement gives rise to dispersed nanodomains of a rhenium-rich phase. As a contribution to clarify this question, an X-ray absorption spectroscopy (XANES) study using synchrotron radiation was performed at the Re L3-edge of rhenium-containing molybdenite samples. Obtained results are described and discussed supporting the generally accepted structural perspective that rhenium is mainly carried by molybdenite through the isomorphous replacement of Mo, rather than by the formation of dispersed Re-specific nanophase(s).por
dc.identifier.citationSilva, Teresa Pereira... [et al.] - Molybdenite as a rhenium carrier : first results of a spectroscopic approach using synchrotron radiation. In: Journal of Minerals and Materials Characterization and Engineering, vol. 1, nº 5 (September 2013), p. 207-211por
dc.identifier.issn2327-4085
dc.identifier.urihttp://hdl.handle.net/10400.9/2111
dc.language.isoengpor
dc.relation.publisherversionhttp://dx.doi.org/10.4236/jmmce.2013.15032por
dc.subjectMolibdenitepor
dc.subjectRéniopor
dc.subjectAbsorção de raios Xpor
dc.subjectEspectroscopia de raios Xpor
dc.subjectRadiação de sincrotrãopor
dc.subjectXANESpor
dc.titleMolybdenite as a rhenium carrier : first results of a spectroscopic approach using synchrotron radiationpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJournal of Minerals and Materials Characterization and Engineeringpor
person.familyNameSilva
person.familyNamede Oliveira
person.familyNameVeiga
person.familyNameBatista
person.givenNameTeresa
person.givenNameDaniel Pipa Soares
person.givenNameJoão Pedro
person.givenNameMaria Joao
person.identifier2216267
person.identifier92033
person.identifier.ciencia-idB916-C501-8AA3
person.identifier.ciencia-idA11D-DDD7-29F2
person.identifier.ciencia-idD81C-9EE7-8B61
person.identifier.ciencia-idC01A-B2B1-C2D0
person.identifier.orcid0000-0002-0306-1015
person.identifier.orcid0000-0002-6338-8845
person.identifier.orcid0000-0001-5324-1586
person.identifier.orcid0000-0003-0197-1004
person.identifier.ridL-9359-2013
person.identifier.ridJ-3681-2013
person.identifier.ridAGY-5000-2022
person.identifier.scopus-author-id7005146574
person.identifier.scopus-author-id7005481948
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicatione3d4c3a2-65c9-44d1-acd7-5c09468b7a24
relation.isAuthorOfPublication37bc3d74-b0fe-4e9b-8e8d-e2eabb196242
relation.isAuthorOfPublication394657c1-49c9-4c04-9f55-28bd2ec8a62b
relation.isAuthorOfPublication12ae02d3-d869-483e-8da9-9f74268f5e7b
relation.isAuthorOfPublication.latestForDiscovery37bc3d74-b0fe-4e9b-8e8d-e2eabb196242

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