Download or read book Synthesis Characterization and Properties of Zirconium Oxide ZrO2 Doped Titanium Oxide TiO2 Thin Films Obtained Via Sol Gel Process written by Rabah Bensaha and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Treatment written by Frank Czerwinski and published by BoD – Books on Demand. This book was released on 2012-09-26 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat treatment and surface engineering are seen as crucial elements in the design and manufacture of strategic components in a wide range of market sectors and industries including air, sea and land transportation, energy production, mining, defense or agriculture. This book offers a broad review of recent global developments in an application of thermal and thermochemical processing to modify the microstructure and properties of a wide range of engineering materials. Although there is no formal partition of the book, chapters represent two different application areas of heat treatment. The first group covers the conventional heat treatment with processing of bearing rings, wrought and cast steels, aluminum alloys, fundamentals of thermochemical treatment, details of carbonitriding and a design of cooling units. The second group describes a use of non-conventional thermal routes during manufacturing cycles of such materials as vanadium carbides, titanium dioxide, metallic glasses, superconducting ceramics, nanoparticles, metal oxides, battery materials and slag mortars. A mixture of conventional and novel applications, exploring a variety of processes employing heating, quenching and thermal diffusion, makes the book very useful for a broad audience of scientists and engineers from academia and industry.
Download or read book Ceramic Abstracts written by and published by . This book was released on 1998 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Sol gel Derived Metal Oxide Thin Films and Powders for Coatings and Catalysts written by Per A. Askeland and published by . This book was released on 1997 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanostructured Titanium Dioxide Materials written by Ali Reza Khataee and published by World Scientific. This book was released on 2012 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ch. 1. Introduction -- ch. 2. Properties of titanium dioxide and its nanoparticles. 2.1. Structural and crystallographic properties. 2.2. Photocatalytic properties of nanostructured titanium dioxide -- ch. 3. Preparation of nanostructured titanium dioxide and titanates. 3.1. Vapor deposition method. 3.2. Solvothermal method. 3.3. Electrochemical approaches. 3.4. Solution combustion method. 3.5. Microemulsion technique. 3.6. Micelle and inverse Micelle methods. 3. 7. Combustion flame-chemical vapor condensation process. 3.8. Sonochemical reactions. 3.9. Plasma evaporation. 3.10. Hydrothermal processing. 3.11. Sol-Gel technology -- ch. 4. Applications of nanostructured titanium dioxide. 4.1. Dye-sensitized solar cells. 4.2. Hydrogen production. 4.3. Hydrogen storage. 4.4. Sensors. 4.5. Batteries. 4.6. Cancer prevention and treatment. 4.7. Antibacterial and self-cleaning applications. 4.8. Electrocatalysis. 4.9. Photocatalytic applications of titanium dioxide nanomaterials -- ch. 5. Supported and immobilized titanium dioxide nanomaterials. 5.1. Immobilization on glass substrates. 5.2. Immobilization on stone, ceramic, cement and zeolite. 5.3. Immobilization on metallic and metal oxide materials. 5.4. Immobilization on polymer substrates
Download or read book Titanium Dioxide written by Magdalena Janus and published by BoD – Books on Demand. This book was released on 2017-07-26 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium dioxide is mainly used as a pigment and photocatalyst. It is possible to find it in food, cosmetics, building materials, electric devices, and others. This book contains chapters about characteristics of anatase and rutile crystallographic structure of titanium dioxide and the use of theoretical calculation for photoactivity determination.
Download or read book Synthesis and Characterisation of M doped Titanium Dioxide for the Potential Application in Electrochemical Devices written by Laura R. Sayers and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemistry of systems intended to produce metal-doped, nanostructured oxide materials containing titaniumffV) has been investigated. Manganese and iron were chosen as cheap, sustainable metal atom dopants with a view to possible use of product materials in electrochemical devices. In particular, the aim was to enhance electronic conductivity and to introduce psudocapacitance for investigation in supercapacitor devices. Previous literature in this area was found to be misleading; products of earlier synthetic studies have been incompletely characterised, with solid products being assumed to be single crystalline phases and metal atom contents being assumed on the basis of hypothetical doping levels rather than being determined analytically. Electrochemical properties of product materials in electrode films were determined in this study via use of EIS, CV and galvanostatic charge- discharge techniques. Conventional sol-gel and micro-emulsion synthetic methods were undertaken with the view to control of product particle sizes and yields for single phase, Mn-doped titaniumfl V) oxide (ideally within the anatase structure). Other than for the pure binary oxides of manganese or titanium, the products obtained were mixtures of oxides rather than single phases, with titaniumfl V) in the rutile polymorph within the I mixed-phase products. "Doped" product materials produced by the emulsion method showed no improvements in conductivity or specific capacitance when compared with a standard anatase (undoped) sample. The mixed-oxide materials produced by the sol-gel method, containing Mn02, had enhanced conductivities but no improvement in specific capacitance. Single-phase, anatase structured, Mn-doped titanium dioxide materials, were prepared using the continuous hydrothermal synthesis (CHS) method. The maximum amount of Mn successfully incorporated into the .anatase structure was found to be approximately 8%wt, as determined by AAS, ICP-MS and SEM-EDX analytical methods; high Mu-content resulted in phase segregation and irreversibility within cyclic voltammograms, as evident in observation of an oxidation peak but no reduction peak. The highest recorded specific capacitance value for these samples was that for the CHSMn008 sample (theoretical composition Tio.92Mno.os02), with a value of 4.5 F g'l (oxide specific surface area, 34.8 m2 g·l). This compared to a similarly prepared anatase (undoped) material with a specific surface area of 48.6 m2 g'l and a specific capacitance of 2.5 F g·l. No correlation between specific surface areas and specific capacitance values was observed, but the BET-determined ·specific surface areas were for powdered samples whereas capacitances refer to composite electrode films. Chapter 1 Introduction • ", The initial eHS product materials displayed no improvement in conductivity, but p H-adjusted synthesis led to samples (denoted CHS MnKOH) with higher conductivities consequent on higher Mn contents, and these samples also had the highest specific capacitance values. In view of the success of the eHS method in producing Mn-doped anatase materials, it was also used to synthesise Fe-doped titaniumffV) oxides. The products were a range of single phase materials, but syntheses aimed at high Fecontents led to mixtures, Ti02 + Fe oxides + Fe2Ti05; the maximum amount of Fe incorporated whilst still maintaining a pure single phase product was approximately 7%wt. The conductivity of these materials showed marked improvement relative to the standard (undoped) anatase sample, comparable to those for eHS MnKOH samples, but the Mn-doped samples had higher specific capacitances than Fe-doped counterparts . . The highest specific capacitance values recorded were between 25 and 32 F g'l, regardless of dopant (MnlFe) and/or phase purity, and were associated with a high specific surface area or a high concentration of "dopant" within the sample. 1.
Download or read book Chromium Doped TiO2 Sputtered Thin Films written by Anouar Hajjaji and published by Springer. This book was released on 2014-12-24 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents co-sputtered processes ways to produce chrome doped TiO2 thin films onto various substrates such as quartz, silicon and porous silicon. Emphasis is given on the link between the experimental preparation and physical characterization in terms of Cr content. Moreover, the structural, optical and optoelectronic investigations are emphasized throughout. The book explores the potencial applications of devices based on Cr doped TiO2 thin films as gas sensors and in photocatalysis and in the photovoltaic industry. Also, this book provides extensive leads into research literature, and each chapter contains details which aim to develop awareness of the subject and the methods used. The content presented here will be useful for graduate students as well as researchers in materials science, physics, chemistry and engineering.
Download or read book Titanium Dioxide Nanoparticles written by Yucheng Lan and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades, titanium dioxide has been an important material for different sectors of modern technology. More precisely, this ceramic has been synthesised in the form of nanomaterial and applied in buildings, dye-sensitised solar cells, hydrogen production, sensors, rechargeable batteries, electrocatalysis, self-cleaning, environmental pollution, and antibacterial actions based on its enhanced optical properties. This book describes preparation, photocatalytic properties, and applications of nanostructured titanium dioxide with a particular focus on non-traditional syntheses and brookite. Titanium oxide nanoparticles are produced by hydrothermal processes, ionic liquid-assisted reactions, biological approaches, ball-milling techniques, etc. Physical properties and potential future applications of the produced nanostructured titanium dioxide nanoparticles are reviewed. Toxicity of titanium oxide nanoparticles and titanium oxide nanowires are also discussed.
Download or read book Ceramics Technology written by and published by . This book was released on 1996 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Copper doped and Silver doped Titanium Dioxide Nano catalysts for Photocatalytic Applications written by Haya Abdel Raouf Ahmed and published by . This book was released on 2015 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this work was to improve the performance of TiO2 nanomaterials by increasing their optical activities by shifting the onset of the response from the UV to the visible-light region. Among the several ways to achieve this goal, doping TiO2 nanomaterials with other elements (e.g. metals) was selected to narrow the band gap and enhance the optical properties of TiO2 nanomaterials. In this work, we have prepared Cu-doped TiO2 and Ag-doped TiO2 nano-catalysts, characterized them and studied their properties, and the optical ones in particular. The Ag-doped TiO2 catalyst was prepared by the sol-gel method while the Cu-doped TiO2 catalyst was prepared by using two different techniques for comparison purposes: the sol-gel method and the inert gas condensation technique under ultra-high vacuum. The Ag-doped TiO2 nano-catalysts prepared by the sol-gel method were characterized by using Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM) and Electron Probe Micro-Analyser (EPMA) for surface morphology and chemical composition, Brunauer-Emmett-Teller (BET) analysis for surface area and porosity measurements, X-ray diffraction (XRD) to determine their crystal structure and UV-visible absorption spectrometry (UV-Vis) to measure the optical properties. The same characterization methods have been applied on the Cudoped TiO2 photocatalysts prepared by the sol-gel method, in addition to some rheological measurements to determine their flow behaviour. Furthermore, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and UV-visible absorption spectrometry (UV-Vis) analyses have been conducted to characterize the Cu-doped TiO2 catalysts prepared by the inert gas condensation technique. vii The experimental work conducted here revealed promising results for improving the performance of the TiO2 nano material by doping it with Cu and Ag metals where the optical activity was enhanced and shifted to the visible region causing an appreciable increase in its effectiveness for photo catalytic applications.
Download or read book Preparation and Characterization of Titanium Dioxide Terbium Doped Via Sol Gel Method written by Nurrulhidayah Ahmad Fadzlillah and published by . This book was released on 2007 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sol Gel Synthesis and Characterization of Neodymium Ion Doped Nanostructured Titania Thin Films written by Andrew Burns and published by . This book was released on 2001 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nd doped TiO2 nanostructured thin films were prepared by sol-gel technique on quartz and Si substrates using TiCl4 precursor. As-deposited amorphous films were annealed to form anatase phase in the thin films. The film grain size increased with annealing temperature. Above 800 deg C, rutile began to segregate and the grain size decreased slightly. The photodegradation of 2-chlorophenol (2-CP) was studied. Doping TiO2 with Nd(+3) reduced the photodegradation time. The difference in the ionic radii of Nd(+3) and Ti(+4) and the oxygen affinities of Nd and Ti were responsible for this effect. These differences help promote electron trapping, thereby increasing the lifetime of the holes which are responsible for the oxidation of 2-CP.
Download or read book Synthesis and Characterization of Titania based Thin Films for Sensor Applications written by Benjamin Elden Wilson and published by . This book was released on 2005 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attempts to develop various methods for producing TiO2(titanium oxide) thin films using pulsed laser deposition and sol-gel synthesis. Characterizes the thin films using SEM (scanning electron microscope) and XRD (x-ray diffraction). Models photocatalysis kinetic data acquired from a previous experiment done by Young et al.
Download or read book Comparison of Titanium Dioxide silicon Dioxide zirconium Dioxide Synthesized Via Sol gel Process to be Used as Lens Protection written by Sujitra Wongkasemjit and published by . This book was released on 2004 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineered Materials Abstracts written by and published by . This book was released on 1992-07 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
