Sökning: "oxidation"

Visar resultat 16 - 20 av 1778 avhandlingar innehållade ordet oxidation.

  1. 16. Electrochemical Reactions in Polymer Electrolyte Fuel Cells

    Författare :Maria Wesselmark; Svein Sunde; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel cell; model electrodes; oxygen reduction; methanol oxidation; formic acid oxidation; hydrogen oxidation; CO oxidation; degradation; tungsten oxide; carbon support; Bränslecell; modellelektroder; syrgasreduktion; metanoloxidation; myrsyraoxidation; vätgasoxidation; CO oxidation; degradering; wolfram oxid; kolsupport; Chemical engineering; Kemiteknik;

    Sammanfattning : The polymer electrolyte fuel cell converts the chemical energy in a fuel, e.g. hydrogen or methanol, and oxygen into electrical energy. The high efficiency and the possibility to use fuel from renewable sources make them attractive as energy converters in future sustainable energy systems. LÄS MER

  3. 17. Oxidation of titanium in aqueous solutions

    Författare :Håkan Mattsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nuclear waste; TEM; corrosion; ESCA; Aqueous solution; titanium; bentonite; surface composition; oxidation;

    Sammanfattning : .... LÄS MER

  4. 18. Kinetics for oxidation of CRUD model compounds

    Författare :Maryam Abili Nejad; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; reactor chemistry; radiolysis; oxidation; kinetics; crud; metal oxide;

    Sammanfattning : The formation of CRUD (Chalk River Unidentified Deposit) inwater-cooled nuclear reactors constitute a severe problem. Thestability of CRUD under reactor conditions (high flux ofionizing radition, high temperature and pressure) must be knownin order to minimize the problem. LÄS MER

  5. 19. New Approaches to Investigate and Prevent Oxidation of Polypropylene

    Författare :Petter Eriksson; KTH; []
    Nyckelord :oxidation; polypropylene; oxidative spreading; antioxidants; hyperbranched antioxidants;

    Sammanfattning : When employing chemiluminescence to evaluate stabiliserperformance in a polymer, the induction time or the time toreach maximum chemiluminescence intensity is often used. Insuch an experiment the longest part of the experiment isnormally the time before the oxidation starts. LÄS MER

  7. 20. Effect of Wood Constituents Oxidation of Unsaturated Fatty Acids

    Författare :Alireza Salehi Movahed; Mats K.G. Johansson; Mats Johnssson; Karin Jacobsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Wood constituents; oil; oxidation; unstatured fatty acids; lignin; model lignin compounds; Polymer chemistry; Polymerkemi;

    Sammanfattning : This work presents the mechanisms of free radicals in a model system between fatty acids oxidation process and wood components. The aim is to create a better understanding of new environmentally friendly materials for exterior wood protection. LÄS MER