Search for dissertations about: "oxofluorides"

Found 3 swedish dissertations containing the word oxofluorides.

  2. 1. Transition metal oxofluorides comprising lone pair elements : Synthesis and Characterization

    Author : Shichao Hu; Mats Johnsson; Jürgen Köhler; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lone pairs; oxofluorides; low-dimensional compounds; Inorganic Chemistry; oorganisk kemi;

    Abstract : Within the family of transition metal oxochlorides/bromides containing lone pair elements, the transition metal cations often adopt a low-dimensional arrangement such as 2D layers, 1D chains or 0D clusters. The reduced dimensionality is attributed to the presence of stereochemically active lone pairs which are positioned in the non-bonding orbital and will not participate in bond formation and instead act as structural spacers that help to separate coordination polyhedra around transition metal cations from forming three dimensional networks. READ MORE

  4. 2. Design of new materials with crystal structure-related properties : The role of lone pair cations

    Author : Eleni Mitoudi Vagourdi; Mats Johnsson; Vadim Kessler; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Crystal structure determination; New oxohalide compounds; Lone-pair electrons; X-ray diffraction; Physical properties; Inorganic Chemistry; oorganisk kemi;

    Abstract : Non-centrosymmetry and low-dimensional arrangements, e.g. chains or layers, are very attractive structural characteristics of crystalline compounds since they are linked to some physical properties including nonlinear optical activity, ferroelectricity and magnetic frustration. READ MORE

  5. 3. Water splitting by heterogeneous catalysis

    Author : Henrik Svengren; Mats Johnsson; Tomas Edvinsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Faradaic efficiency; electrocatalysis; electrolysis; water oxidation; hydrogen reduction; H2; O2; mass spectrometry; Inorganic Chemistry; oorganisk kemi;

    Abstract : A sustainable solution for meeting the energy demands at our planet is by utilizing wind-, solar-, wave-, thermal-, biomass- and hydroelectric power. These renewable and CO2 emission-free energy sources are highly variable in terms of spatial and temporal availability over the Earth, introducing the need for an appropriate method of storing and carrying energy. READ MORE