Search for dissertations about: "alkali-metal"

Showing result 21 - 25 of 46 swedish dissertations containing the word alkali-metal.

  2. 21. Mineral dissolution from molecular to field scale

    Author : Heléne Strandh; William H. Casey; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mineralogy; Petrology and Geochemistry; mineralogi; petrologi och geokemi;

    Abstract : Mineral reactivity contributes to the global biogeochemical cycling of elements. CO2is consumed during the chemical weathering of many silicates and during formation of carbonates in the oceans. READ MORE

  4. 22. Anionic Graft Copolymers with Poly(ethylene oxide) Side-Chains; Synthesis, Solution Properties and Ion Conduction

    Author : Helene Dérand; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dieletric properites; ion conduction; solution properties; aggregation; amphiphilic polymers; poly ethylene oxide ; preparation; grafting; Polymer technology; biopolymers; Polymerteknik;

    Abstract : The research underlaying this thesis involves synthesis and characterization of well-defined anionic graft copolymers carrying poly(ethylene oxide) (PEO) side-chains. Two different grafting techniques were used. Backbone polymers were prepared through radical terpolymerization of maleic anhydride, styrene and an additional comonomer. READ MORE

  5. 23. Modification of zeolites and synthesis of SAPO-templated carbon

    Author : Yunxiang Li; Niklas Hedin; Anders Palmqvist; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; microporous material; zeolite; SAPO templated carbon; hydrothermal synthesis; CVD; post modification; direct modification; snowflake; Materials Chemistry; materialkemi;

    Abstract : Zeolites are crystalline aluminosilicates with diverse structures and uniform porosities. They are widely used as catalysts, adsorbents and ion-exchangers in industry. Direct or post modifications optimize the performance of zeolites for different applications. In this thesis, IZM-2 and TON-type zeolites were synthesized, modified and studied. READ MORE

  6. 24. Electronic and Geometric Structure of Phthalocyanines on Metals

    Author : Masumeh-Nina Shariati; Maria Novella Piancastelli; Carla Puglia; Kajsa Uvdal; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; monolayer; multilayer; metal-free phthalocyanine; metal phthalocyanine; interaction; intermolecular; adsorbate-substrate; XPS; XAS; STM; DFT; alkali; metallization;

    Abstract : Adsorption of monolayers and multilayers of metal-free and metal phthalocyanines molecules on metal surfaces has been investigated using complementary microscopic and synchrotron-based spectroscopic techniques. It was observed by STM measurements that at monolayer coverage the adsorption direction of the metal-free phthalocyanine molecules with respect to the gold surface vary as a function of temperature, i. READ MORE

  7. 25. Challenges in Computational Biochemistry: Solvation and Ligand Binding

    Author : Jens Carlsson; Johan Åqvist; Chris Reynolds; Uppsala universitet; []
    Keywords : Molecular biology; computer simulations; molecular dynamics; solvation free energy; Generalized-Born; Poisson-Boltzmann; ligand binding; binding free energy; linear interaction energy; binding entropy; hydration entropy; Molekylärbiologi;

    Abstract : Accurate calculations of free energies for molecular association and solvation are important for the understanding of biochemical processes, and are useful in many pharmaceutical applications. In this thesis, molecular dynamics (MD) simulations are used to calculate thermodynamic properties for solvation and ligand binding. READ MORE