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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 47 for “"Titanium Oxide"”.
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Virus-enabled synthesis of titanium oxide nanowires
… for synthesizing materials, we demonstrated titanium oxide nanowire synthesis with use of engineered M13 virus at room temperature. In this virus-enabled synthesis process, negatively-charged titanium fluoro complexes nucleate at positive amine sites on the virus, and a subsequent …
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Breakdown Anodization (BDA) for hierarchical structures of titanium oxide
Breakdown Anodization (BDA) of titanium dioxide is a very promising, fast fabrication method to construct micro-scale and nano-scale structures on titanium surfaces. This method uses environmentally friendly electrolytes, such as nitric acid, and can be fabricated within 30 minutes regardless of …
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Doped Titanium Oxide Photcatalysts: Preparation, Structure and Interaction With Viruses
In this study, both chemical and physical modification approaches were developed to extend the absorption band-edge of TiO2 into the visible light region with improved stability, photocatalytic efficiency and ease of the doping process. Two major approaches were used in the material synthesis and …
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Adsorption of inorganic ions at the titanium oxide-solution interface
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mining and Metallurgy, 1967.
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Formation, modification and new applications of orderly structured titanium oxide nanostructures /
… focuses on the formation of non-stoichiometric titanium oxide nanostructures, the characterization of their properties and the search for practical applications. TiOx and Mxenes (Ti3C2) nanostructures formed in a liquid medium were investigated using SEM, EDX, Raman, EPR, XPS, XRD methods. In …
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Electrochemical vapor deposition of a graded titanium oxide-yttria stabilized zirconia layer
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1996.
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Anodic alcohol fuel cell reactions at platinum active sites on doped metal oxide supports
… associated with a carbon-based catalyst, metal oxide supports are an area of interest as they display high stability in the harsh conditions associated with fuel cell operations. In this work, the employment of various doped metal oxide supports; silicon & molybdenum doped titanium oxide (TOMS), …
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PECVD of silicon and titanium based coatings to enhance the biocompatibility of blood contacting biomedical devices
… reactions. In this work, silicon and titanium based thin film coatings with four different surface characteristics were deposited by PECVD on 316L stainless steel substrates. Polymer-like SiOxCyHz, silica-like SiOx, titanium oxide TiO, and silicon-titanium mixed oxide coatings were …
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Modelling and computational analysis of heat-transfer in multi-geometry and multi-phase flow of Newtonian and non-Newtonian fluids in pipes and channels
… of nano-particles will be considered, aluminium oxide (Al2O3) and titanium oxide (TiO2) nano particles. The non-Newtonian fluids in this thesis are modelled via the Giesekus viscoelastic constitutive equations. For the multi-geometry heat-exchanger problems, the thesis will focus attention on …
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Analysis of Kyrock for Leaching of Impurities in Synthetic Rainwater
… spectroscopy showed inorganic compounds such as titanium oxide, vanadium oxide along with traces of arsenic. Elemental analysis of samples indicates a percent of carbon, and sulfur with no notable traces of nitrogen. Pyrolysis of the samples was done using gas chromatography mass spectroscopy …
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Virus-enabled synthesis and 2D/3D assembly of nanowire networks
… 2, we describe the virus-enabled synthesis of titanium oxide nanowires and their incorporation in layer-by-layer polyelectrolyte assemblies for use in dye sensitized solar cells. In Chapter 3, we describe a two-dimensional network of virus-templated cobalt oxide nanowires integrated into …
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Atmospheric Pressure Chemical Vapor Deposition of Functional Oxide Materials for Crystalline Silicon Solar Cells
Functional oxides are versatile materials that can simultaneously enable efficiency gains and cost reductions in crystalline silicon (c-Si) solar cells. In this work, the deposition of functional oxide materials using atmospheric pressure chemical vapor deposition (APCVD) and the integration of …
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Control of viruses in drinking water with visible light-activated TiON/PdO photocatalyst: performance dynamics associated with regeneration and activation
… disinfection. Photocatalytic materials, such as titanium dioxide, have been demonstrated to inactivate a variety of pathogens when irradiated with UVA light but the UVA fraction of sun light is limited. In this research, the performance of a visible light-activated palladium-modified, …
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High-temperature corrosion protection of gas turbine blades with micro-coatings and nano-coatings : simulation and experiments
… protection of gas turbine blade specimens. Titanium and silicon carbide (ceramic) materials were used for the micro-coating (double layer coating). An aluminium oxide and titanium oxide mix was deployed for the nano-coating (single layer coating). TGA (thermo-gravimetric analysis) and SEM …
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Sputtering fabrication of silicon nitride and silicon oxide based dichroic mirrors
… for future solar-cell applications. Silicon oxide and silicon nitride targets were selected as materials used in the sputtering process. The sputtered multilayers and films were then characterized and analyzed using spectrophotometry. The transmission spectrum of the initial multilayer …
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Hierarchical Assembly of Polymeric Nanofibers for Advanced Material Applications
… process, aligned inorganic nanofibers, such as Titanium Oxide (TiO2) with varied morphologies can be conveniently obtained. Mechanical properties of aligned polymer nanofibers (diameter from 50nm to several hundred nanometers) with fixed-fixed boundary conditions were estimated using a lateral …
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Synthesis and Characterisation of Electron Conducting Mesoporous ti and ta Oxide for Use as Potential Electrode Materials in Lithium Ion Batteries
Mesoporous titanium oxide with a pore size of 20-30 Å was impregnated with conducting polythiophene nanowires in order to improve conductivity to take advantage of the ca. 1000 m2/g surface areas for possible applications in charge storage in devices requiring fast Li+ insertion kinetics. Pristine …
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Studies of dielectric breakdown under pulsed power conditions
… (BDS) of ceramic dielectrics, particularly titanium oxide and ceramic/epoxy composite materials, are being characterized and studied. Results of research to-date show that the dense titania ceramics with nanocrystalline grain size (~200 nm) exhibit significantly higher electrical BDS as …
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Experimental Investigation of Particle Lag behind a Shock Wave using a Novel Laser Doppler Accelerometer
… agglomeration and evaporation problems with Titanium Oxide and Polystyrene Latex spheres. Particle acceleration measurements are presented, proving the unique concept of the new Laser Doppler probe. Mean and instantaneous acceleration data is extracted from high SNR signals. The acceleration …
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