Show simple item record

dc.contributor.supervisorBieringer, Mario (Chemistry)en_US
dc.contributor.authorHernden, Brad
dc.date.accessioned2011-08-30T16:07:27Z
dc.date.available2011-08-30T16:07:27Z
dc.date.issued2011-08-30
dc.identifier.urihttp://hdl.handle.net/1993/4789
dc.description.abstractOver 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.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectmanganateen_US
dc.subjectpowder x-ray diffractionen_US
dc.subjectinsitu diffractionen_US
dc.subjecttopotacticen_US
dc.subjectreductionen_US
dc.subjectoxidationen_US
dc.subjectsolid stateen_US
dc.subjectRuddlesden-Popperen_US
dc.titleInvestigation of topotactic reduction processes for manganate (n=1) Ruddlesden-Popper phases and scandium vanadateen_US
dc.typeinfo:eu-repo/semantics/masterThesis
dc.typemaster thesisen_US
dc.degree.disciplineChemistryen_US
dc.contributor.examiningcommitteeCadogan, Sean (Physics & Astronomy), Budzelaar, Peter (Chemistry)en_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.noteOctober 2011en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record