Fe speciation in geopolymers with Si/Al molar ratio of ~2.

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dc.contributor.authorPerera, DSen_AU
dc.contributor.authorCashion, JDen_AU
dc.contributor.authorBlackford, MGen_AU
dc.contributor.authorZhang, Zen_AU
dc.contributor.authorVance, ERen_AU
dc.date.accessioned2010-09-02T00:21:29Zen_AU
dc.date.available2010-09-02T00:21:29Zen_AU
dc.date.issued2007-05-01en_AU
dc.date.statistics2007-05-01en_AU
dc.description.abstractThe speciation of Fe was studied in metakaolin-based geopolymers to which Fe was added as ferric nitrate solution or freshly precipitated ferric hydroxide. From Mössbauer and near-edge X-ray absorption spectroscopies, coupled with X-ray diffraction and electron microscopy, it was concluded that in as-cured geopolymers the Fe was present in octahedral sites, either as isolated ions in the geopolymer matrix or as oxyhydroxide aggregates which had not reacted with the starting geopolymer components. For material to which iron nitrate was added, heating to 900°C allowed the formation of nepheline and a glass, both of which contained tetrahedrally coordinated, substituted Fe3+. © 2007, Elsevier Ltd.en_AU
dc.identifier.citationPerera, D. S., Cashion, J. D., Blackford, M. G., Zhang, Z., & Vance, E. R. (2007). Fe speciation in geopolymers with Si/Al molar ratio of ~2. Journal of the European Ceramic Society, 27(7), 2697-2703. doi:10.1016/j.jeurceramsoc.2006.10.006en_AU
dc.identifier.govdoc2582en_AU
dc.identifier.issn0955-2219en_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleJournal of the European Ceramic Societyen_AU
dc.identifier.pagination2697-2703en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jeurceramsoc.2006.10.006en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2422en_AU
dc.identifier.volume27en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectElectron microscopyen_AU
dc.subjectSpectroscopyen_AU
dc.subjectPolymersen_AU
dc.subjectIronen_AU
dc.subjectSiliconen_AU
dc.subjectAluminiumen_AU
dc.titleFe speciation in geopolymers with Si/Al molar ratio of ~2.en_AU
dc.typeJournal Articleen_AU
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