Studies of ferrite, borosilicate and intercalation materials

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dc.check.embargoformatNot applicableen
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dc.contributor.advisorSpalding, Trevor R.en
dc.contributor.authorHerlihy, Emmet A.
dc.date.accessioned2014-08-13T09:50:12Z
dc.date.available2014-08-13T09:50:12Z
dc.date.issued1999
dc.date.submitted1999
dc.description.abstractThis thesis is concerned with several aspects of the chemistry of iron compounds. The preparation (with particular emphasis on coprecipitation and sol-gel techniques) and processing of ferrites are discussed. Chapter 2 describes the synthesis of Ni-Zn ferrites with various compositions by three methods. These methods include coprecipitation and sol-gel techniques. The Ni-Zn ferrites were characterised by powder X-ray diffactometry (PXRD), scanning electron microscopy (SEM), vibrating sample magnetometry (VSM), Mössbauer spectroscopy and resistivity measurements. The results for the corresponding ferrites prepared by each method are compared. Chapter 3 reports the sol-gel preparation of a lead borosilicate glass and its addition to Ni-Zn ferrites prepared by the sol-gel method in Chapter 2. The glass-ferrites formed were analysed by the same techniques employed in Chapter 2. Alterations in the microstructure, magnetic and electronic properties of the ferrites due to glass addition are described. Chapter 4 introduces compounds containing Fe-O-B, Fe-O-Si or B-O-Si linkages. The synthesis and characterisation of compounds containing Fe-O-B units are described. The structure of [Fe(SALEN)]2O.CH2Cl2 (17), used in attempts to prepare compounds with Fe-O-Si bonds, was determined by X-ray crystallography. Chapter 4 also details the synthesis of three new borosilicate compounds containing ferrocenyl groups, i.e. [FcBO)2(OSiBut2)2] (19), [(FcBO)2(OSiPh2)2] (20) and [FcBOSiPh3] (21). The structure of (19) was determined by X-ray Crystallographic analysis. Chapter 5 reviews the intercalation properties of the layered host compound iron oxychloride (FeOCI). Intercalation compounds prepared with the microwave dielectric heating technique are also discussed. The syntheses of intercalation compounds by the microwave method with FeOCI as host and ferrocene, ferrocenylboronic acid and 4-aminopyridine as guest species are described. Characterisation of these compounds by powder X-ray diffractometry (PXRD) and M{ssbauer spectroscopy is reported. The attempted synthesis of an intercalation compound with the borosilicate compound (19) as guest species is discussed. Appendices A-E describe the theory and instrumentation involved in powder X-ray diffractometry (PXRD), scanning electron microscopy (SEM0, vibrating sample magnetometry (VSM), Mössbauer spectroscopy and electrical resistivity measurements, respectively. Appendix F details the attempted syntheses of compounds with Fe-O-B and Fe-O-Si linkages.en
dc.description.statusNot peer revieweden
dc.description.versionAccepted Version
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHerlihy, E. A. 1999. Studies of ferrite, borosilicate and intercalation materials. PhD Thesis, University College Cork.en
dc.identifier.urihttps://hdl.handle.net/10468/1621
dc.languageEnglishen
dc.language.isoenen
dc.publisherUniversity College Corken
dc.relation.urihttp://library.ucc.ie/record=b1301530~S0
dc.rights© 1999, Emmet A. Herlihyen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/en
dc.subjectProperties of Ni-Znen
dc.subjectMicrowave-assisted synthesis of intercalation compoundsen
dc.subjectMagnetic properties of ferritesen
dc.subjectSol-gel synthesis techniquesen
dc.subjectLead borosilicate glassen
dc.subjectIntercalation compoundsen
dc.subject.lcshChemistry, Inorganicen
dc.thesis.opt-outfalse
dc.titleStudies of ferrite, borosilicate and intercalation materialsen
dc.typeDoctoral thesisen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePhD (Science)en
ucc.workflow.supervisorcora@ucc.ie
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