Sökning: "AP-XPS"
Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet AP-XPS.
1. In situ structural studies and gas phase visualization of model catalysts at work
Sammanfattning : This thesis reports on in situ structural studies relevant to a catalytic surface during CO oxidation. The materials that have been studied are palladium, rhodium and an alloy of palladium and silver, with applications in emission cleaning by catalytic converters in vehicles. LÄS MER
2. On the Function of Ceria Supported Rhodium Catalysts for Methanation of Carbon Dioxide
Sammanfattning : Technologies for energy harvesting of sustainable sources such as solar and wind lack an inherent energy buffer. As such, storing excess energy in chemical bonds, for example that of hydrogen (H2), is a desirable complementary concept. LÄS MER
3. Transient In Situ Studies on Supported Catalysts: CO2 Methanation and Methane Oxidation
Sammanfattning : This dissertation aims to increase the understanding of important steps in the catalytic CO2 hydrogenation and total methane oxidation reactions over supported noble metal catalysts. A general theme is the role of the metal oxide support for the catalytic reactions. LÄS MER
4. Synchrotron X-ray based characterization of technologically relevant III-V surfaces and nanostructures
Sammanfattning : Innovative design and materials are needed to satisfy the demand for efficient and scalable devices for electronic and opto-electronic applications, such as transistors, LEDs, and solar cells. Nanostructured III-V semiconductors are an appealing solution, combining the excellent functional properties of III-V materials with the flexibility typical of nanostructures, such as the nanowires (NWs) studied here. LÄS MER
5. Development of combined operando diagnostics : Applications in heterogeneous catalysis and electrochemistry
Sammanfattning : With the aim to bridge the pressure gap between traditional surface science and industrial applications, heterogeneous catalytic reactions on model catalysts are increasingly studied at near-ambient pressures. Under those conditions, the gas phase has been shown to play an important role during the interaction at the gas-surface interface making it complex to study. LÄS MER