Sökning: "Heterogenization"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet Heterogenization.

  1. 1. Photocatalysis beyond conventional precious metal complexes

    Författare :Rickard Lindroth; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Heterogenization; Iron photocatalysis;

    Sammanfattning : Precious metals, e.g. Ru and Ir, are expensive, scarce and non-renewable resources. As oppose to many renewable resources, these cannot be deliberately produced wherever one wishes. LÄS MER

  3. 2. Heterogenization of a Cobalt Porphyrin Catalyst Investigated by Scanning Probe Microscopy and X-Ray Photoelectron Spectroscopy: The Effect on Catalysis of Oxidation Reactions

    Författare :Greger Ledung; Sven Oscarsson; Claire-Marie Pradier; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Other chemical engineering; Övrig kemiteknik; Bioteknik kemiteknik;

    Sammanfattning : Construction of advanced materials through self-assembly on the molecular level is an important route to achieve novel functionality. Self-assembly of thiols onto gold has during the last decades shown greate promise in the creation of functional nanomaterials, such as sensors or catalysts, but for many applications silicon should be a better substrate since it offers semiconducting properties and better processing abilities in addition to being cheaper. LÄS MER

  4. 3. Identity Across Borders : A Study in the "IKEA-World"

    Författare :Miriam Salzer; Leif Melin; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Organizational identity; organizational culture; sense-making; image; IKEA; across borders; global identity; local spheres; national culture; ethnography;

    Sammanfattning : How do people construct shared views of what the organization is all about in the international, complex; company? Within a cultural perspective, organizational identity can be tmderstood as organizational members' shared views and definitions of the organization. As people make sense of actions, events, decisions, etc. LÄS MER

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

    Författare :Kristofer Eriksson; Jan-Erling Bäckvall; Graham Hutchings; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; heterogeneous catalysis; anisotropic particles; protein gradients; nanoparticles; organisk kemi; Organic Chemistry;

    Sammanfattning : 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. LÄS MER

  7. 5. Catalytic Processes Mediated by Metal−Organic Frameworks : Reactivity and Mechanistic Studies

    Författare :Vlad Pascanu; Belén Martín-Matute; Seth Cohen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organisk kemi; Organic Chemistry;

    Sammanfattning : The present thesis describes the development of heterogeneous catalytic methodologies using metal−organic frameworks (MOFs) as porous matrices for supporting transition metal catalysts. A wide spectrum of chemical reactions is covered. LÄS MER