Search for dissertations about: "photochemical oxidation"

Showing result 1 - 5 of 22 swedish dissertations containing the words photochemical oxidation.

  2. 1. Molecular Approaches to Photochemical Solar Energy Conversion : Towards Synthetic Catalysts for Water Oxidation and Proton Reduction

    Author : Gerriet Eilers; Reiner Lomoth; Leif Hammarström; Wolfgang Lubitz; Uppsala universitet; []
    Keywords : Physical chemistry; artificial photosynthesis; solar fuel; WOC; OEC; accumulative electron transfer; hydrogenase mimic; oxygen evolution; proton reduction; water oxidation; Fysikalisk kemi;

    Abstract : A molecular system capable of photoinduced water splitting is an attractive approach to solar energy conversion. This thesis deals with the functional characterization of molecular building blocks for the three principal functions of such a molecular system: Photoinduced accumulative charge separation, catalytic water oxidation, and catalytic proton reduction. READ MORE

  4. 2. Comparison of experimentally and theoretically determined oxidation and photochemical transformation rates of some organohalogens to promote prediction of persistence

    Author : Patricia Moreira Bastos; Åke Bergman; Leif Kronberg; Stockholms universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oxidation; Persistence; Photolysis; QSPR; BFRs; PBDEs; OH-PBDEs; Chemistry; Kemi; miljökemi; Environmental Chemistry;

    Abstract : The diversity of choices we have to make everyday influence our environment and ourselves in more ways than most of us realise. Anthropogenic substances, such as flame retardants, date back as early as 450 BC when the Egyptians used alum to reduce flammability. READ MORE

  5. 3. Photoactive EDA complexes in visible light driven aerobic oxidations

    Author : August Runemark; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; visible light; EDA complex; aerobic oxidation; photochemical; organic synthesis;

    Abstract : Organic synthesis driven by photochemical activation has been proven very promising in a range of scenarios within academia and industry. The emergence of photoredox catalysis has fueled an ever-growing interest in the use of visible light as a convenient energy source for a variety of radical reactions otherwise difficult to achieve. READ MORE

  6. 4. Development of Ruthenium Catalysts for Water Oxidation

    Author : Tanja M. Laine; Björn Åkermark; Antoni Llobet; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; homogeneous catalysis; O-O bond formation; photocatalysis; ruthenium; water oxidation; organisk kemi; Organic Chemistry;

    Abstract : An increasing global energy demand requires alternative fuel sources. A promising method is artificial photosynthesis. Although, the artificial processes are different from the natural photosynthetic process, the basic principles are the same, i.e. READ MORE

  7. 5. Photochemical alterations of dissolved organic matter : Impact on heterotrophic bacteria and carbon cycling in lakes

    Author : Stefan Bertilsson; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Globally, the amount of carbon in dissolved organic matter (DOM) is similar to the total amount in the atmosphere. DOM also plays a key role in structuring natural surface waters and affects the physical, chemical, and biological character of these systems. READ MORE