Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Vanadium oxides"”.
-
Structure and reactivity of Titania-supported Molybdenum and Vanadium oxides
For abstract see full text.
-
Reactions Between Molybdenum-Disilicide and Vanadium-Oxides at Elevated Temperatures
Made available in DSpace on 2014-12-12T00:32:35Z (GMT). No. of bitstreams: 1 7511558.pdf: 6083522 bytes, checksum: c588063a0bf822a70e4bd63a27b96332 (MD5) Previous issue date: 1974
-
Electronic, thermoelectric and optical properties of vanadium oxides: VO2, V2O3 and V2O5
Correlated electrons in vanadium oxides are responsible for their extreme sensitivity to external stimuli such as pressure, temperature or doping. As a result, several vanadium oxides undergo insulator-to-metal phase transition (IMT) accompanied by structural change. Unlike vanadium pentoxide …
-
Corrosion by molten mixtures of sodium carbonate and vanadium pentoxide
… heavy petroleum fuels which contain sodium and vanadium becomes very severe when the temperature of the metal exceeds 550 to 600°C, thus placing undesirable limitations on both the manufacturers and users of heavy fuel oil fired boilers and turbines. To contribute to the understanding of this …
-
Solid Phase Crystallization of Vanadium Dioxide Thin Films and Characterization Through Scanning Electron Microscopy
Crystalline films of vanadium dioxide were obtained through thermal annealing of amorphous vanadium dioxide thin films sputtered on silicon dioxide. An annealing process was found that yielded polycrystalline vanadium dioxide thin films, semi-continuous thin films, and films of isolated single-crystal …
-
Gas Phase Oxidation of Levulinic Acid for the Production of Maleic Anhydride over Supported Vanadium Oxide Catalysts
… This process is carried out over supported vanadium oxide catalysts. Yields as high as 71% of the theoretical maximum were achieved at 573 K over a vanadium oxide catalyst supported on SiO2. The exact mechanism underlying this transformation is complex, but our results suggest that maleic …
-
IMPLEMENTATION OF NOVEL RECEPTOR-TRANSDUCTION CONCEPTS AND MATERIAL MORPHOLOGIES IN GAS SENSORICS
… quasi-one dimensional phthalocyanines and metal oxides to gas-sensing. The possibility of rational tuning of the growth conditions, in order to control composition, morphology, size, orientation and alignment of the grown low-dimensional nanostructures was investigated. Employing custom designed …
-
Electronic properties and surface chemistry of vanadium oxide systems: New insights from synchrotron X-ray techniques
Vanadium oxides are considered exemplary materials within both fundamental condensed matter physics and heterogeneous catalysis research. The metal-insulator transition (MIT) inVO2 has been at the centre of attempts to understand the role of electron correlations in transition metal oxides since …