Sökning: "in situ IR spectroscopy"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden in situ IR spectroscopy.

  1. 1. On the separation of enantiomers by direct crystallization

    Detta är en avhandling från Stockholm : Kemiteknik

    Författare :Veronica Profir; [2001]
    Nyckelord :optical resolution; direct crystallization; threonine; mandelic acid; racemic compound; nucleation of metastable conglomerate; in situ concentration measurements; IR spectroscopy; multivariate calibration.;

    Sammanfattning : .... LÄS MER

  2. 2. Synchrotron-based In Situ Electron Spectroscopy Applied to Oxide Formation and Catalysis

    Detta är en avhandling från Lund University, Faculty of Science, Department of Physics

    Författare :Niclas Johansson; [2017-10]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CO oxidation; Sonogashira cross-coupling; trilayer FeO; vicinal FeO; Mn III -salen; APXPS; XAS; Fysicumarkivet A:2017:Johansson;

    Sammanfattning : In this thesis, in situ ambient pressure X-ray photoelectron spectroscopy has been used to address chemical reactions on surfaces. The presented work aims at the investigation of the relation between pressure and adsorbate surface structures during catalytic reactions. LÄS MER

  3. 3. In situ investigations of the metal/atmophere interface

    Detta är en avhandling från Stockholm : Materialvetenskap

    Författare :Teodor Aastrup; [1999]
    Nyckelord :;

    Sammanfattning : This thesis presents a new experimental setup for surfaceanalysis studies, incorporating chemical information frominfrared reflection absorption spectroscopy (IRAS) andquantitative information from quartz crystal microbalance(QCM). The integrated IRAS/QCM surface analysis system enablesin situstudies to be conducted of the metal/atmosphereinteraction on a sub-monolayer level. LÄS MER

  4. 4. Development and Application of Non-linear Mid-infrared Laser Spectroscopy for Combustion Diagnostics

    Detta är en avhandling från Stockholm : Materialvetenskap

    Författare :Zhiwei Sun; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Degenerate four-wave mixing; Polarization spectroscopy; Mid-infrared; Non-linear laser spectroscopy; Laser diagnostics; Combustion; Flame; HITRAN; Concentration; Temperature; Fysicumarkivet A:2012:Sun;

    Sammanfattning : The work reported in this thesis involved the development and application of two novel infrared non-linear laser techniques, namely mid-infrared polarization spectroscopy (IRPS) and mid-infrared degenerate four-wave mixing (IR-DFWM) to combustion diagnostics. These two techniques meet the needs of species concentration detection in combustion environments, especially for those species lacking accessible electronic (one-photon) transitions in the ultraviolet (UV) or visible spectral region. LÄS MER

  5. 5. Development of ATR-FTIR Kretschmann Spectroscopy for In situ Studies of Metal / Polymer Interfaces and its Intergration with EIS for Exposure to Corrosive Conditions

    Detta är en avhandling från Stockholm : KTH

    Författare :Maria Öhman; Christofer Leygraf; Herman Terryn; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Chemistry Physical chemistry Surface and colloid chemistry; NATURVETENSKAP Kemi Fysikalisk kemi Yt- och kolloidkemi;

    Sammanfattning : The environmental stability of a metal / polymer interface is essential for the durability and mechanical stability of constructions in several important areas such as the automotive, offshore, building and aerospace industries. The protective capability of a polymer film is strongly connected to its barrier properties, but the transport of water and corrosive constituents through the polymer and the subsequent processes at the metal surface are complicated to analyse in detail. LÄS MER