Search for dissertations about: "anisotropic nanoparticles"

Showing result 1 - 5 of 10 swedish dissertations containing the words anisotropic nanoparticles.

  1. 1. Development and Applications of Surface-Confined Transition Metal Complexes Heterogeneous Catalysis and Anisotropic Particle Surfaces

    University dissertation from Stockholm : Department of Organic Chemistry, Stockholm University

    Author : Kristofer Eriksson; Stockholms universitet.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; heterogeneous catalysis; anisotropic particles; protein gradients; nanoparticles; Organic Chemistry; organisk kemi;

    Abstract : The main focus of this thesis has been directed towards developing novel surface-confined transition metal complexes for applications in heterogeneous catalysis and for the preparation of anisotropic particle surfaces. The first part describes the heterogenization of a homogeneous transition metal-based catalyst tetraphenyl cobalt porphyrin (CoTPP) on silicon wafers and on silica particles. READ MORE

  2. 2. Design and characterization of nanoparticles and their assemblies Transmission electron microscopy investigations from atomic to mesoscopic length scales

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

    Author : Arnaud Mayence; Stockholms universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nanoparticles; electron microscopy; materialkemi; Materials Chemistry;

    Abstract : Transmission electron microscopy (TEM) is a powerful and versatile tool for investigating nanomaterials. In this thesis, various transmission electron microscopy techniques are used to study the chemical and structural features of different types of inorganic nanoparticles of well-defined morphologies as well as their assemblies. READ MORE

  3. 3. Elements of modeling nanoparticle growth: Surface thermodynamics and dispersive interactions

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Joakim Löfgren; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; density functional theory; growth mechanism; gold nanorods; dispersive interactions; molecular dynamics; van der Waals forces; thermodynamics; CTAB; anisotropic nanoparticles; modeling; surface phase diagram;

    Abstract : Metal nanoparticles have in recent decades been the subject of intense research owing to their wide range of size and shape-dependent properties, which makes them interesting candidates for a variety of applications. Gold nanorods represent a particularly intriguing type of particle due to their tunable plasmonic properties. READ MORE

  4. 4. Two-Photon Excited Fluorescence Depolarisation Experimental and Theoretical Development

    University dissertation from Uppsala : Universitetsbiblioteket

    Author : Linus Ryderfors; Uppsala universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Two-photon excitation; Fluorescence; Fluorescence depolarisation; Fluorescence anisotropy; Time-correlated single photon counting; Gold nanoparticles; Rotational diffusion; Excited state symmetry; Extended Förster theory; Orientation correlation functions; Donor-donor energy migration DDEM ; NATURAL SCIENCES Physics Atomic and molecular physics Chemical physics; NATURVETENSKAP Fysik Atom- och molekylfysik Kemisk fysik;

    Abstract : We have studied fundamental aspects of time-resolved two-photon excited fluorescence depolarisation. The thesis presents experimental as well as theoretical progress. READ MORE

  5. 5. Controlled Polymer Grafting from Nanoparticles for the Design of Dielectric Nanocomposites

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Martin Wåhlander; KTH.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : The interest for polymeric nanocomposites has rapidly grown during the last decades, fuelled by the great potential and superior properties of nanoparticles (NPs). The production volumes of commercial NPs have increased exponentially during the last ten years, and the quality has been significantly improved. READ MORE