[-] Show simple item record

dc.contributor.advisorChen, Xiaobo, 1976-
dc.contributor.authorGreen, Michael
dc.date.issued2020
dc.date.submitted2020 Spring
dc.descriptionTitle from PDF of title page viewed May 21, 2020
dc.descriptionDissertation advisor: Xiaobo Chen
dc.descriptionVita
dc.descriptionIncludes bibliographical references (pages 139-160)
dc.descriptionThesis (Ph.D.)--Department of Chemistry and Department of Geosciences. University of Missouri--Kansas City, 2020
dc.description.abstractControlling the interactions between incident electromagnetic energy and matter is of critical importance for many civil and military applications, such as photocatalysis, solar cells, optics, radar detection, communications, information processing and transport, et al. For interactions in the microwave region of the electromagnetic spectrum, the generation of materials which have desirable dielectric and magnetic properties is critical, as these properties ultimately determine how a material system interacts with these incident electromagnetic waves. In this dissertation, we present a comprehensive report of the microwave absorption properties of metal/hydrogen treated anatase titanium dioxide nanoparticles, where the synergistic treatment induces favorable structural, optical, and microwave absorption properties, which can be fine-tuned via controlling the temperature of materials treatment. Furthermore, this material demonstrates strong reflection loss and effective bandwidth properties, which places its performance within the top quintile of all materials produced. The high efficiency of microwave absorption is likely linked to the disordering-induced property changes in the materials. Along with the increased microwave absorption properties are largely increased visible-light and IR absorptions, and enhanced electrical conductivity and reduced skin-depth, which is likely related to the interfacial defects within the TiO2 nanoparticles caused by the metal/hydrogen treatment.
dc.description.tableofcontentsIntroduction -- Proposal -- Methods -- Aluminum/hydrogen treated titanium dioxide nanoparticles -- Magnesium/hydrogen treated titanium dioxide nanoparticles -- Closing remarks -- Appendix A. Supplemental figures -- Appendix B. Software
dc.format.extentxvii, 161 pages
dc.identifier.urihttps://hdl.handle.net/10355/73312
dc.subject.lcshMicrowaves
dc.subject.lcshTitanium dioxide
dc.subject.lcshElectromagnetic waves
dc.subject.otherDissertation -- University of Missouri--Kansas City -- Chemistry
dc.subject.otherDissertation -- University of Missouri--Kansas City -- Geosciences
dc.titleOn the advancement of core/shell titanium dioxide nanomaterials for microwave absorption
thesis.degree.disciplineChemistry (UMKC)
thesis.degree.disciplineGeological Sciences (UMKC)
thesis.degree.grantorUniversity of Missouri--Kansas City
thesis.degree.levelPh.D.
thesis.degree.levelDoctoral
thesis.degree.namePh.D. (Doctor of Philosophy)


Files in this item

[PDF]

This item appears in the following Collection(s)

[-] Show simple item record