Search for dissertations about: "reflection-absorption infrared spectroscopy"

Showing result 1 - 5 of 21 swedish dissertations containing the words reflection-absorption infrared spectroscopy.

  1. 1. Vibrational Spectroscopy of Surface Adsorbates on Metal Surfaces. Experiments and Calculations

    University dissertation from Ragnar K. Ásmundsson, Chemical Physics, Lund University

    Author : Ragnar K Ásmundsson; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ab initio electronic structure calculations; Fermi resonance; vibrational spectroscopy; Reflection absorption infrared spectroscopy; Fourier transform infrared spectroscopy; Cu 100 and W 110 single crystal surfaces; Physics; Fysik;

    Abstract : This work deals with a detailed analysis of the vibrational spectra of methoxy (CH3O-) and ethoxy (CH3CH2O-) on W(110) and Cu(100) single crystal surfaces. By using theoretical ab initio quantum mechanical modeling, it is demonstrated that an unprecedented quantitative understanding of the vibrational frequencies of a surface adsorbate can be obtained. READ MORE

  2. 2. Surface Vibrational and Electron Spectroscopy - Experiments and first-principle calculations

    University dissertation from Martin Andersson, Östervång 30, 247 32 Södra Sandby, Sweden

    Author : Martin Andersson; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; gränsskikt; anharmonicity; Ytkemi; Surface and boundary layery chemistry; adsorbates; metal surface; density functional theory; first-principle calculations; electron spectroscopy; reflection-absorption infrared spectroscopy; vibrational spectroscpy;

    Abstract : This work deals with interpretation of experimental surface spectroscopic data with the aid of first-principle calculations. Surface infrared reflection-absorption spectra as well as spectra from the electron spectroscopic methods photoemission and X-ray absorption are considered. READ MORE

  3. 3. Vibrational Sum Frequency and Infrared Reflection/Absorption Spectroscopy Studies of the Air/Liquid and Liquid/Metal Interfaces

    University dissertation from Stockholm : KTH

    Author : Magnus Johnson; Christofer Leygraf; Andrew Gewirth; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Corrosion science; laser spectroscopy; nonlinear optics; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : Atmospheric corrosion, the most common form of metal corrosion, occurs within the interfacial region between a solid, and the surrounding atmosphere. In fact three phases and two interfaces are involved: the gas, a thin liquid layer, a solid, the gas/liquid and the liquid/solid interfaces. READ MORE

  4. 4. Structure of Self-Assembled Monolayers on Gold Studied by NEXAFS and Photoelectron Spectroscopy

    University dissertation from Karlstad : Karlstads universitet

    Author : Somsakul Watcharinyanon; Lars Johansson; Hans Siegbahn; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Self-assembled monolayer SAMs ; X-ray photoelectron spectroscopy XPS ; Near-edge X-ray absorption fine structure NEXAFS spectroscopy; Infrared reflection absorption spectroscopy IRRAS ; contact angle measurements; Kelvin probe measurements; oligo phenyleneethynylene OPE ; Porphyrin-functionalized OPE; Tetraphenylporphyrin; Ferrocene-terminated alkanethiol; thiol; silane; Au 111 ; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; Physics; Fysik;

    Abstract : Self-assembled monolayers (SAMs) provide well-defined and ordered films of molecules spontaneously chemisorbed on a surface. By designing molecules with desired functionalities, such molecular film can be interesting for a range of applications from molecular electronics to catalysis. READ MORE

  5. 5. Infrared spectroscopy of O2 and N2 adsorption on the clean and hydrogen covered Pt(111) surface

    University dissertation from Karlstad : Karlstads universitet

    Author : Kristian Gustafsson; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Infrared Spectroscopy; Adsorption; Hydrogen; Nitrogen; Pt 111 ; Oxygen;

    Abstract : This thesis is devoted to the investigation of O2and N2 adsorption on the clean and the hydrogen covered Pt(111) surface. Using infrared reflection absorption spectroscopy (IRAS) both physisorbed and chemisorbed molecular adsorptionstates have been identified and characterized via theircharacteristic internal vibration spectra. READ MORE