Search for dissertations about: "pore size"

Showing result 1 - 5 of 195 swedish dissertations containing the words pore size.

  1. 1. Mesostructured particulate silica materials with tunable pore size Synthesis, characterization and applications

    University dissertation from Stockholm : KTH

    Author : Malin Helena Sörensen; KTH.; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mesoporous materials; aersol-based process; emulsion-based process; biocatalysis; sustained release; 3D hexagonal; 2D hexagonal; powder; spherical particles; liquid crystalline phases; AFM-porosimetry; Pluronic; MEDICINE Chemistry; MEDICIN Kemi;

    Abstract : Colloidal assemblies of surfactants and polymers in aqueous solutions have been used by human mankind for hundreds of years and they are of great importance in many of our technological processes, such as fabrication of soap and papermaking. Less than two decades ago the idea of using colloidal assemblies as templates of inorganic materials was borne. READ MORE

  2. 2. Studies on continuous lean NOx reduction with hydrocarbons over dual pore size zeolite catalysts

    University dissertation from Chalmers University of Technology

    Author : Thomas Holma; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; zeolites; HC-SCR; dual pore system; ZSM-5; FER; MOR; NOx reduction; diesel exhaust; lean exhaust;

    Abstract : .... READ MORE

  3. 3. Controlling the Pore Size and Morphology of Mesoporous Silica

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Emma M. Johansson; Linköpings universitet.; Linköpings universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Mesoporous silica with a hexagonally ordered pore structure (SBA-15) has been synthesized. Through variations in the synthesis conditions several morphologies, such as fibers, sheets and separate rods, have been realized. READ MORE

  4. 4. Enzyme Immobilization in Mesoporous Silica

    University dissertation from Chalmers University of Technology

    Author : Hanna Gustafsson; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Enzymteknik; Enzyme engineering; Funktionella material; Functional materials; Mesoporous; silica; pore size; particle morphology; immobilization; encapsulation; enzyme; lipase; trypsin; feruloyl esterase;

    Abstract : Catalysts are widely used in many industries for production of chemicals, pharmaceuticals, fuels and energy. There is a need for more sustainable production processes, with reduced energy and raw material consumption together with a reduction in waste and toxic by-products. READ MORE

  5. 5. Membrane emulsification: modelling interfacial and geometric effects on droplet size

    University dissertation from Food Technology, Lund University

    Author : Marilyn Rayner; Lunds universitet.; Lund University.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pore geometry; membrane emulsification; Gases; Surface Evolver; fluid dynamics; plasmas; Gaser; fluiddynamik; plasma; Chemical technology and engineering; Kemiteknik och kemisk teknologi; Food and drink technology; modelling; Livsmedelsteknik;

    Abstract : Emulsification is an important unit operation used in the pharmaceutical, food, and cosmetic industry. Membrane emulsification is a relatively new membrane technology which allows the production of emulsion droplets under controlled conditions with a narrow droplet size distribution. READ MORE