Search for dissertations about: "Lanthanides"

Showing result 16 - 20 of 34 swedish dissertations containing the word Lanthanides.

  2. 16. Exploring The Versatility Of Ionic Liquids : From fundamental understanding to materials inspired from ionic liquids

    Author : Olivier Renier; Anja-Verena Mudring; Lydie Viau; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ionic liquids; liquid crystals; DSSC; molecular design; Luminescent materials; anhydrous compounds; phase transition; complex coordination; materialkemi; Materials Chemistry;

    Abstract : Ionic liquids (ILs) have gained popularity as “green” and safe replacements for conventional organic solvents. They are defined as ionic salts displaying a melting point below 100 °C. Some of their unique characteristics also include negligible vapour pressure, good electrical conductivity as well as good thermal and chemical stability. READ MORE

  4. 17. Photoinduced Electron Transfer in Luminescent Lanthanide Complexes

    Author : Daniel Kovacs; Eszter Borbas; Stephen Faulkner; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lanthanide; Luminescence; Photoinduced electron transfer; Kemi; Chemistry;

    Abstract : Luminescence from the trivalent lanthanides is used for detection in biological systems. Lanthanide luminescence is usually sensitized by a light-harvesting organic chromophore (’antenna’). An ideal emitter has an antenna that efficiently transfers energy to the lanthanide, and a ligand that shields the metal from quenching solvent molecules. READ MORE

  5. 18. Diluent and Solvent Effects in Liquid-Liquid Extraction Systems based on bis-triazine-bipyrididine (BTBP)-class Ligands

    Author : Elin Löfström Engdahl; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Used nuclear fuel; Density; Solvent; Extraction vs. time; BTBP; GANEX; Liquid-Liquid Extraction; Interfacial tension; Diluent;

    Abstract : Used nuclear fuel taken directly from a reactor is radiotoxic for mankind and its environment for a long time. One of the major contributions to the long time radiotoxicity is the presence of a group of elements called the actinides. READ MORE

  6. 19. Investigations of α-D-isosaccharinate: Fundamental Properties and Complexation

    Author : Stefan Allard; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Waste products containing cellulose will be present in the planned underground radioactive waste repositories. It will be exposed to an alkaline environment for long periods of time. Under such conditions cellulose will degrade forming mainly isosaccharinate. READ MORE

  7. 20. Structural investigation of Nb-based layer sulfides

    Author : Alexander Grippa; Sven Lidin; Pedro Berastegui; Carlos Otero Díaz; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nb-based sulfides; misfit layered; structure determination; electron diffraction; Chemistry; Kemi;

    Abstract : In this work we have investigated the intercalation of electron-donors between NbS2 slabs in Nb-based layer sulfides.Two series of Sr substituted Nb-based misfit sulfides belonging to the 1.5Q/1H and 1Q/1H series of misfit layer compounds have been synthesised. READ MORE