Sökning: "Heterogeneous Catalysis"
Visar resultat 21 - 25 av 117 avhandlingar innehållade orden Heterogeneous Catalysis.
21. Farm to furan derivatives : Fractionation of agricultural residues and transformation of sugars to chemical building blocks
Sammanfattning : The transition of industrial production from petrochemistry to a more sustainable economy requires the use of carbon neutral, renewable feedstock, which does not compete with food and feed supplies – by-products of farming and agro-food industry offer this possibility. With a limited range of low-value applications today coupled with the need for maximal utilisation of resources, the by-products of farming can be repurposed as feedstock for biorefineries. LÄS MER
22. Laser diagnostics and modeling of the coupling between heterogeneous catalytic and gas-phase oxidation of hydrogen
Sammanfattning : .... LÄS MER
23. Surface reactions and chemical bonding in heterogeneous catalysis
Sammanfattning : This thesis summarizes studies which focus on addressing, using both theoretical and experimental methods, fundamental questions about surface phenomena, such as chemical reactions and bonding, related to processes in heterogeneous catalysis. The main focus is on the theoretical approach and this aspect of the results. LÄS MER
24. Transition Metal-Catalyzed Redox Reactions : A Journey from Homogeneous Ruthenium to Heterogeneous Palladium Catalysis
Sammanfattning : The first part of the thesis covers the development and utilization of electronically modified (pentaarylcyclopentadienyl)Ru-complexes in the racemization of secondary alcohols. This study revealed that the electronic properties of the substrate were the main factors dictating whether β-hydride elimination or hydride re-addition becomes the rate-determining step of the racemization process. LÄS MER
25. Formic and Levulinic Acid from Cellulose via Heterogeneous Catalysis
Sammanfattning : The chemical industry of today is under increased pressure to develop novel green materials, bio-fuels as well as sustainable chemicals for the chemical industry. Indeed, the endeavour is to move towards more eco-friendly cost efficient production processes and technologies and chemical transformation of renewables has a central role considering the future sustainable supply of chemicals and energy needed for societies. LÄS MER