Sökning: "Pd Al2O3"

Visar resultat 26 - 29 av 29 avhandlingar innehållade orden Pd Al2O3.

  1. 26. Deactivation of after-treatment catalysts for bio-fuelled engines

    Författare :Johanna Englund; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental catalysis; Cu-CHA; Vanadium; Supported palladium platinum; Biodiesel; Biogas; NOx reduction; Methane oxidation; Sustainable transports;

    Sammanfattning : To decrease the emissions of anthropogenic CO2 from vehicles one option is to increase the utilization of biobased fuels. However, there are challenges with this transition, one being the mitigation of emissions of the potent greenhouse gas methane, which is the main constituent of biogas. LÄS MER

  3. 27. New Materials for Gas Sensitive Field-Effect Device Studies

    Författare :Anette Salomonsson; Anita Lloyd Spetz; Per-Olov Käll; Mehre Sanati; Mats Eriksson; Pelagia-Irene (Perena) Gourma; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ruthenium dioxide; nanoparticles; MISiCFET; sensors; Physics; Fysik;

    Sammanfattning : Gas sensor control is potentially one of the most important techniques of tomorrow for the environment. All over the world cars are preferred for transportation, and accordingly the number of cars increases, unfortunately, together with pollutants. Boilers and powerplants are other sources of pollutants to the environment. LÄS MER

  4. 28. Catalytic formation of ammonia from nitric oxide

    Författare :Emma Adams; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NOx reduction; Passive-SCR; In situ characterisation; Environmental heterogeneous catalysis; Ammonia formation;

    Sammanfattning : The emission of nitrogen oxides (NOx) from automobiles results in severe environmental and biological effects. Passive selective catalytic reduction (passive SCR) of NOx with ammonia (NH3) is a proposed method for abatement of NOx emissions in net lean-burn gasoline passenger vehicles. LÄS MER

  5. 29. Development of Methanol-Reforming Catalysts for Fuel Cell Vehicles

    Författare :Johan Agrell; KTH; []
    Nyckelord :PEM fuel cells; hydrogen; methanol; reforming; oxidation; reaction pathways; carbon monoxide;

    Sammanfattning : Vehicles powered by proton exchange membrane (PEM) fuelcells are approaching commercialisation. Being inherently cleanand efficient sources of power, fuel cells constitute asustainable alternative to internal combustion engines to meetfuture low-emission legislation. LÄS MER