Search for dissertations about: "perovskite hydrides"

Found 3 swedish dissertations containing the words perovskite hydrides.

  2. 1. Novel Interstitial Mg–TM (TM = Ti, Zr, Hf, V, Nb and Ta) Hydrides with an FCC Structure and CaNiH3 with a Perovskite Structure

    Author : Toyoto Sato; Dag Noréus; Bjørn C. Hauback; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Metal hydrides; Mg-based hydrides; a new Ca-Ni hydride; Chemistry; Kemi;

    Abstract : This thesis is focused on structural investigations of novel interstitial ternary alkaline-earth–transition metal hydrides formed by immiscible metals that are held together by the presence of hydrogen atoms. The contents are divided in two parts: Metastable Mg-based hydrides, in which transition-metal additives improve hydrogen storage properties; and a new Ca–Ni hydride, CaNiH3, with a perovskite structure, in which hydrogen enables a Ca:Ni =1:1 ratio although no such alloy composition exists. READ MORE

  4. 2. Structural investigations of some ternary metal hydrides

    Author : Ewa Rönnebro; Gary Sandrock; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; strukturkemi; Structural Chemistry;

    Abstract : This work was undertaken with the intention of describing the metal atom environment of hydrogen in a selection of ternary metal hydrides that could be of interest as hydrogen sorption materials. Mainly X-ray and neutron diffraction techniques were used for the purpose. READ MORE

  5. 3. Hydrogen incorporation in Zintl phases and transition metal oxides- new environments for the lightest element in solid state chemistry

    Author : Reji Nedum Kandathil; Ulrich Häussermann; Michael A. Hayward; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Zintl phases; metal hydrides; transition metal oxyhydrides; XRPD; NPD; Rietveld refinement; Materials Chemistry; materialkemi;

    Abstract : This PhD thesis presents investigations of hydrogen incorporation in Zintl phases and transition metal oxides. Hydrogenous Zintl phases can serve as important model systems for fundamental studies of hydrogen-metal interactions, while at the same time hydrogen-induced chemical structure and physical property changes provide exciting prospects for materials science. READ MORE