Sökning: "zirconia cell"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden zirconia cell.

  1. 1. Zirconia cell measurements of fluctuations between oxidizing and reducing conditions in a circulating fluidized bed boiler

    Författare :Klas Bergqvist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluctuation; response time; zirconia cell; oxygen measurement; oxygen concentration; oxidizing; circulating d´fluidized bed boilers; reducing; CFB; fluidized bed boilers;

    Sammanfattning : .... LÄS MER

  3. 2. Cell-protein-material Interactions on Bioceramics and Model Surfaces

    Författare :Åsa Rosengren; Sven Oscarsson; Lucy Di Silvio; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; protein adsorption; blood proteins; biomaterials; ceramics; glass-ceramics; two-dimensional gel electrophoresis; protein orientation; silicon wafers; atomic force microscopy; bone cell adhesion; divalent cation dependency; Kemi; Chemistry; Kemi;

    Sammanfattning : The objective of this thesis was to investigate and characterize the interaction between blood proteins and different surfaces with emphasis on protein adsorption to bioceramics and model surfaces. Special effort was made to monitor the spontaneous and selective adsorption of proteins from human plasma and to examine the orientation, conformation and functional behavior of single proteins after adsorption. LÄS MER

  4. 3. Yttria-Stabilized Zirconia and Gadolinia-Doped Ceria Thin Films for Fuel Cell Applications

    Författare :Steffen Sønderby; Per Eklund; Scott Barnett; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Solid oxide fuel cells convert chemical energy directly into electrical energy with high efficiency and low emission of pollutants. However, before fuel cell technology can gain a significant share of the electrical power market, the operation temperature needs to be reduced in order to decrease costs and improve the durability of the cells. LÄS MER

  5. 4. Small-Scale Production of Fuel-Cell Hydrogen

    Författare :Christian Hulteberg; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrogen; Chemical Engineering; Catalysis; Small-Scale;

    Sammanfattning : The work presented here aims at producing hydrogen for proton-exchange fuel-cell applications from hydrocarbons. This thesis describes an integrated catalytic converter comprising a steam-reforming reactor (heat of reaction supplied by catalytic combustion), a water-gas shift reactor and a preferential oxidation of carbon monoxide reactor, and the work performed on the fuel processing catalysts therein. LÄS MER

  7. 5. Physical Vapor Deposition of Yttria-Stabilized Zirconia and Gadolinia-Doped Ceria Thin Films for Fuel Cell Applications

    Författare :Steffen Sønderby; Per Eklund; Hans Högberg; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : In this thesis, reactive sputter deposition of yttria-stabilized zirconia (YSZ) and cerium gadolinium oxide (CGO) thin films for solid oxide fuel cell (SOFC) applications have been studied. All films have been deposited under industrial conditions.YSZ films were deposited on silicon wafers as well as commercial NiO-YSZ fuel cell anodes. LÄS MER