Search for dissertations about: "BaZrO3"
Showing result 1 - 5 of 16 swedish dissertations containing the word BaZrO3.
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1. Acceptor-Doped BaZrO3 Perovskite: Synthesis, Structure and Proton Conductivity
Abstract : Acceptor-doped perovskite oxides exhibit significant proton conductivity in hydrogen containing atmospheres. Therefore, they have potential for use as separator materials for various electrochemical devices including gas sensors, electrolysers and fuel cells. READ MORE
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2. Functional Oxide Materials exhibiting Ionic Conductivity for Future Energy Conversion Needs
Abstract : Fuel cells are electrochemical devices that transform the chemical energy in hydrogen and oxygen into electrical energy at high efficiencies and produce only water vapour emissions. Materials with the perovskite or fluorite structure types are commonly employed as the ion conducting ceramic electrolyte membranes in intermediate and high temperature fuel cells. READ MORE
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3. On the defective origin of conductive and structural properties of oxides: insights from first principles
Abstract : Oxides are versatile materials with applications in many different research fields; especially those related to clean energy technologies, such as fuel cells, batteries and solar panels. Many functional properties of these materials derive from lattice imperfections, or defects, and a lot of effort has been put into fine tuning these materials by modifying their structure on the atomic scale. READ MORE
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4. Acceptor-doped barium zirconate: Oxidation, hydration and space-charge formation
Abstract : The current production and use of fossil fuels is not sustainable and new technologies are needed to become more independent of these fuels.The hydrogen economy, with the fuel cell as an efficient converter of chemical to electrical energy, is a desirable alternative.For this to become a reality, new materials with tailored properties are required. READ MORE
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5. Proton conductivity of lanthanum and barium zirconate: Microscale aspects on first-principles basis
Abstract : Fuel cells are devices which convert chemical energy into electrical energy cleanly and efficiently. Development of fuel cells compatible with hydrocarbon fuels would make more efficient use of present fossil and renewable fuels, and also enable progress towards a future hydrogen economy. READ MORE