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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 61 to 70 of 155 (0.088 seconds)Spelling suggestions: "subject:"alectron spectroscopy."" "subject:"celectron spectroscopy.""
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Synthesis And Characterization Methods Of Palladium-Doped Ceria-Zirconia CompoundsGraves-Brook, Melissa Kaye 06 August 2005 (has links)
The main automotive catalytic media, precious metal-doped ceria-zirconia oxides, fundamental system character is unknown. Understanding the catalytic system properties should allow for the production of an optimal model catalyst. This goal of this study is to gain understanding of ceria-zirconia-palladium systems and to determine a reproducible method for preparing catalysts with minimal surface-carbon. This study investigates ceria-zirconia-palladium catalyst preparation via aqueous chemistry methods and a sputter deposition technique for doping ceria-zirconia oxide mixtures. Prepared catalysts are characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). XPS allows the surface species, after catalyst doping and annealing, to be evaluated. Prepared catalyst EM analysis allows for surface morphology and particle characteristic evaluation. Prepared catalysts are exposed to UHV conditions, palladium sputtered-coated, and annealed at various temperatures. Temperature dependency is observed in both percentage of carbon, metal, and oxygen species present. This study led to a reproducible, low-carbon content, doping method for use in future pollutant reaction studies.
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| 62 |
Construction of the preparation, growth and characterization chamber of molecular beam epitaxy system and some studies of the iron-galliumnitride system with a view to spintronics applicationsHui, I Pui., 許貽培. January 2007 (has links)
published_or_final_version / abstract / Physics / Doctoral / Doctor of Philosophy
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| 63 |
Structural and spectroscopic studies of surfacesLaitenberger, Peter January 1996 (has links)
No description available.
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| 64 |
The preparation, properties and structure of poly-p-xylyene and its copolymersLightfoot, Philip Kenneth January 2000 (has links)
No description available.
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| 65 |
A.E.S. characterisation of small dimensional heterostructuresGelsthorpe, Andrew James January 2001 (has links)
No description available.
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| 66 |
Monte Carlo calculations of inner shell ionization profiles and the secondary electron background in electron spectroscopyRoss, William Charles January 1998 (has links)
No description available.
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| 67 |
An investigation into the existence of highly-deformed states in '2'2'2Th using the electron detector array SACREDCann, Kevin John January 1998 (has links)
No description available.
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| 68 |
Chemisorption of aromatic molecules on Si(100)-2x1 : an HREELS studyAlkunshalie, Talal January 1998 (has links)
No description available.
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| 69 |
Investigations into the growth and etching of antimonides by chemical beam epitaxy and related techniquesHoward, Fraser Peter January 1999 (has links)
No description available.
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| 70 |
Structural and spectroscopic studies of surfaces on the nanometre scaleFesty, Frederic January 2000 (has links)
No description available.
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