Sökning: "nickel oxide NiO"
Visar resultat 1 - 5 av 19 avhandlingar innehållade orden nickel oxide NiO.
1. Thin Film Synthesis of Nickel Containing Compounds
Sammanfattning : Most electrical, magnetic or optical devices are today based on several, usually extremely thin layers of different materials. In this thesis chemical synthesis processes have been developed for growth of less stable and metastable layers, and even multilayers, of nickel containing compounds. LÄS MER
2. Investigation of Nickel- and Iron-Based Oxygen Carriers for Chemical-Looping Combustion
Sammanfattning : Carbon capture and storage has the potential of reducing emissions of CO2, generated by combustion of fossil fuels. Chemical-looping combustion is a method intended to capture CO2 without an energy consuming gas separation process. LÄS MER
3. Electrochromism in Nickel-based Oxides : Coloration Mechanisms and Optimization of Sputter-deposited Thin Films
Sammanfattning : Electrochromic properties of sputter-deposited nickel-based oxide films have been studied with a two-fold goal. From a practical point of view, the optical switching performance has been improved by optimizing the deposition conditions and film stoichiometry with respect to oxygen and hydrogen, and further by adding Mg, Al, Si, Zr, Nb or Ta to the films. LÄS MER
4. Chemical-Looping Combustion with Natural Gas Using NiO-Based Oxygen Carriers
Sammanfattning : CO2 capture and storage has been proposed as an alternative to mitigate global warming. Chemical-looping combustion is an unmixed combustion concept where fuel and combustion air are kept separate by means of an oxygen carrier and the CO2 capture is inherently achieved. LÄS MER
5. Thermal Analysis and Investigation of NiO-Based Oxygen Carriers for Chemical-Looping Combustion
Sammanfattning : Capture and storage of CO2 can be used to reduce greenhouse gas emissions from combustion of fossil fuels. Chemical-looping combustion is a two-step combustion process where CO2 is obtained in a separate stream, ready for compression and storage. LÄS MER