Search for dissertations about: "environmental heterogeneous catalysis"

Showing result 1 - 5 of 16 swedish dissertations containing the words environmental heterogeneous catalysis.

  1. 1. Metal-Organic Frameworks (MOFs) for Heterogeneous Catalysis Synthesis and Characterization

    University dissertation from Department of Materials and Environmental Chemistry (MMK), Stockholms University

    Author : Mikaela Gustafsson; Stockholms universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; metal-organic frameworks; zeolitic imidazolate frameworks; functionalized linkers; structural transformation; heterogeneous catalysis; strukturkemi; Structural Chemistry;

    Abstract : Metal-organic frameworks (MOFs) are crystalline hybrid materials with interesting chemical and physical properties. This thesis is focused on the synthesis and characterization of different MOFs and their use in heterogeneous catalysis. READ MORE

  2. 2. Water splitting by heterogeneous catalysis

    University dissertation from Stockholm : Department of Materials and Environmental Chemistry, Stockholm University

    Author : Henrik Svengren; Stockholms universitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Faradaic efficiency; electrocatalysis; electrolysis; water oxidation; hydrogen reduction; H2; O2; mass spectrometry; oorganisk kemi; Inorganic Chemistry;

    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

  3. 3. Development of catalytic enantioselective C-C bond-forming and cascade transformations by merging homogeneous or heterogeneous transition metal catalysis with asymmetric aminocatalysis

    University dissertation from Sundsvall : Mid Sweden University

    Author : Samson Afewerki; Mittuniversitetet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; asymmetric catalysis; transition metals; aldehydes; heterogeneous catalysis; amino acid; organocatalysis; α-allylation; β-alkylation; dynamic transformations; polysubstituted; carbocycles; spirocyclic oxindoles; all-carbon quaternary stereocenters;

    Abstract : Chiral molecules play a central role in our daily life and in nature, for instance the different enantiomers or diastereomers of a chiral molecule may show completely different biological activity. For this reason, it is a vital goal for synthetic chemists to design selective and efficient methodologies that allow the synthesis of the desired enantiomer. READ MORE

  4. 4. Development of Metal–Organic Frameworks for Catalysis Designing Functional and Porous Crystals

    University dissertation from Stockholm : Department of Materials and Environmental Chemistry (MMK), Stockkholm University

    Author : Fabian Carson; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Metal–organic frameworks; heterogeneous catalysis; nanoparticles; metallolinkers; postsynthetic modification; postsynthetic exchange; oorganisk kemi; Inorganic Chemistry;

    Abstract : Metal–organic frameworks, or MOFs, have emerged as a new class of porous materials made by linking metal and organic units. The easy preparation, structural and functional tunability, ultrahigh porosity, and enormous surface areas of MOFs have led to them becoming one of the fastest growing fields in chemistry. READ MORE

  5. 5. Kinetics of Nanoparticle Catalysis from First Principles

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Mikkel Jørgensen; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Density functional Theory; Mean field approximation; Acetylene hydrogenation; Kinetic Monte Carlo; CO oxidation; Entropy; Methane oxidation; Heterogeneous catalysis; Kinetic modeling; Nanoparticles;

    Abstract : Modern society depends heavily on heterogeneous catalysis, which creates strong economical and environmental incentives to improve catalyst efficiency. Heterogeneous catalysts are often realized as metal nanoparticles (NPs) supported on oxide surfaces, and catalysts are traditionally developed by trial and error approaches. READ MORE