Search for dissertations about: "insertion mechanism"

Showing result 1 - 5 of 81 swedish dissertations containing the words insertion mechanism.

  1. 1. The Challenge of Probing Lithium Insertion Mechanisms in Cathode Materials

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jonas Höwing; Uppsala universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; Li-ion battery; cathode materials; insertion mechanism; single-crystal X-ray diffraction; vanadium oxide; lithium iron phosphate; Oorganisk kemi; NATURAL SCIENCES Chemistry Inorganic chemistry; NATURVETENSKAP Kemi Oorganisk kemi;

    Abstract : The Li-ion battery has, from its commercialisation in the early 1990's, now become the most widely used power source for portable low-power electronics: laptops, cellular phones and MP3-players are a few examples. To further develop existing and find new electrode materials for these batteries, it is vital to understand the lithium insertion/extraction mechanisms taking place during battery operation. READ MORE

  2. 2. A Catalytic and Mechanistic Investigation of Palladium-Phosphine Catalysed Aqueous Hydroxycarbonylation. Steric and Electronic Properties of the Ligands

    University dissertation from Organic Chemistry, Lund University

    Author : Adriana Ionescu; Lund University.; Lunds universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Oorganisk kemi; Inorganic chemistry; Naturvetenskap; Natural science; Isomerisation of hydroxyalkenes; Mechanism; Regioselectivity; Steric and electronic properties; Hydroxycarbonylation of styrene; Water-soluble phosphines; Palladium; Aqueous catalysis;

    Abstract : The steric and electronic properties of eight water-soluble phosphines (1-8) were investigated by different methods. Phosphines 1-6 were tested as ligands in palladium catalysed hydroxycarbonylation of styrene. READ MORE

  3. 3. MECHANISTIC INVESTIGATIONS OF TRANSITION METAL CATALYZED REACTIONS

    University dissertation from Organic Chemistry, Lund University

    Author : Jonatan Kleimark; Göteborgs universitet.; Gothenburg University.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; alkene insertion; allylic alkylation; catalysis; cross coupling; density funtional theory; free energy surface; iron; kinetic investigation; Mizoroki-Heck reaction; nickel; palladium; reaction mechanism; sulfinylation; transition metal;

    Abstract : Transition metal catalyzed reactions have had a large impact on the human progress for the last century. Several extremely important areas, such as the agricultural industry and the plastic industry, have benefited from this development. READ MORE

  4. 4. Assembly and Function of Nitric Oxide Reductase from Paracoccus denitrificans

    University dissertation from Stockholm : Department of Biochemistry and Biophysics, Stockholm University

    Author : Maximilian Kahle; Stockholms universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; non-heme iron; cofactor; heme-copper oxidase; AAA ; cNOR; chaperone; metal ion insertion; MoxR; nor accessory genes; FeB; liposomes; membrane mimetics; nanodiscs; reconstitution; enzymatic mechanism; NO reduction; O2 reduction; biokemi; Biochemistry;

    Abstract : Bacterial denitrification is a part of the global nitrogen cycle and comprises the stepwise reduction of nitrate to molecular nitrogen, which is released to the atmosphere. Cytochrome c-dependent nitric oxide reductase (cNOR) from Paracoccus (P.) denitrificans catalyzes the reduction of nitric oxide to nitrous oxide and water. READ MORE

  5. 5. Structural studies of lumazine synthases : Thermostability, catalytic mechanism and molecular assembly

    University dissertation from Stockholm : Karolinska Institutet, Biosciences and Nutrition

    Author : Xiaofeng Zhang; Karolinska Institutet.; Karolinska Institutet.; [2006]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; X-ray crystallography; lumazine synthase; thermostability; catalytic mechanism; molecular assembly;

    Abstract : Riboflavin, also known as vitamin B2, is biosynthesized in plants, bacteria, archaea and fungi. The primary biological function of riboflavin is related to its existence as a component of the two coenzymes, flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which play an important role for electron transfer in energy metabolism. READ MORE