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dc.contributor.supervisor Bieringer, Mario (Chemistry) en_US
dc.contributor.author Hernden, Brad
dc.date.accessioned 2011-08-30T16:07:27Z
dc.date.available 2011-08-30T16:07:27Z
dc.date.issued 2011-08-30
dc.identifier.uri http://hdl.handle.net/1993/4789
dc.description.abstract Over the last decade progress towards step-wise structural transformations in solid state chemistry has been made using metal hydride reductants. Alkali and alkali-earth metal hydrides can effectively reduce transition metal oxides resulting frequently in novel oxygen defect structures. This provides access to control over cation oxidation states and magnetic exchange pathways, and thus electronic and magnetic properties. The goal for this research was to investigate a representative system that could be used both for exploration of novel oxygen defect phases and for investigating the fundamental parameters governing successful solid state reductions. The systems chosen for investigation were Sr2-xCaxMnO4 (0<x<2) and Sr2-xBaxMnO4 (x< 0.04). Detailed analysis of metal hydride reactivity with Sr2MnO4 is presented in addition to proof of the solid state reduction mechanism. As a result a number of novel oxygen defect phases have been produced, Sr2MnO4-x (0<x<0.37). The potential for producing novel lithium doped Sr2MnO4-x phases using a reduction/insertion approach with LiH has also been identified. Lastly as a test of application for metal hydrides as reductants the ability to topotactically reduce ScVO4 has been investigated. en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject manganate en_US
dc.subject powder x-ray diffraction en_US
dc.subject insitu diffraction en_US
dc.subject topotactic en_US
dc.subject reduction en_US
dc.subject oxidation en_US
dc.subject solid state en_US
dc.subject Ruddlesden-Popper en_US
dc.title Investigation of topotactic reduction processes for manganate (n=1) Ruddlesden-Popper phases and scandium vanadate en_US
dc.type info:eu-repo/semantics/masterThesis
dc.degree.discipline Chemistry en_US
dc.contributor.examiningcommittee Cadogan, Sean (Physics & Astronomy), Budzelaar, Peter (Chemistry) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2011 en_US


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