Search for dissertations about: "diatomic gas"

Showing result 1 - 5 of 11 swedish dissertations containing the words diatomic gas.

  2. 1. Transport in Oxides Studied by Gas Phase Analysis

    Author : Qian Dong; Gunnar Hultquist; W.J. Quadakkers; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas Phase Analysis; metal; oxide; platinum; vitreous silica; yttria stabilized zirconia; diatomic gas; oxidation; dissociation; permeation; uptake release.; Chemical engineering; Kemiteknik;

    Abstract : The transport in oxides is studied by the use of gas phase analysis (GPA). An experimental method to identify transported species of gases and their contribution to the overall transport of gases in oxides and an experimental method to evaluate the parameters diffusivity, concentration, permeability of gases in oxides and effective pore size in oxides are developed, respectively. READ MORE

  4. 2. Reactivity of Metal Clusters with Diatomic Molecules

    Author : Lotta Holmgren; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nbn; cluster; reactivity; Rhn; NO; D2; CO; N2; laser vaporization; Wn; Nin; photoionization; time-of-flight mass spectrometer; ionization potential; Cun; O2; Vn;

    Abstract : The reactivity of transition-metal clusters, in the approximate size range 10-60 atoms, with diatomic molecules has been investigated. A pulsed beam of neutral clusters is produced by a laser-vaporization source and passed through a low-pressure reaction cell containing the reactive gas. READ MORE

  5. 3. Experimental studies of dynamics in gas-phase diatomic molecules. From lifetime-measurements of BaF tofemtosecond pump-probe spectroscopy of Rb2

    Author : Niklas Gador; KTH; []
    Keywords : ultrafast nonadiabatic dynamics Rb2;

    Abstract : .... READ MORE

  6. 4. Time resolved laser studies of gas phase and condensed phase molecules

    Author : Cecilia Lundevall; Indrek Martinsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; fysik;

    Abstract : Different laser based techniques have been used to study lifetimes and spectra of gas phase molecules, and non-linear optical phenomena in condensed phase materials.The lifetimes of several electronically excited states of the diatomic molecules vanadium oxide, VO, zirconium sulphide, ZrS, titanium sulphide, TiS and titanium oxide, TiO have been performed by resonant two-photon ionisation spectroscopy in a molecular beam combined with a time of flight mass spectrometer. READ MORE

  7. 5. From Oxygen to Oxide: First-Principles Study of Some Key Aspects

    Author : Behrooz Razaznejad; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; potential-enrgy surface; one-dimensional electron gas; adsorption; density functional theory; oxidation; Peierls instability; molecule-surface interaction; plane waves;

    Abstract : Having important technological applications and interesting fundamental science aspects, oxidation of aluminum has received impressive attention. Technologically, the main reason for the great interest is the fact that the oxide film which forms on aluminum protects the surface against further oxidation and corrosion. READ MORE