Sökning: "hierarchical zeolites"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden hierarchical zeolites.

  1. 1. Synthesis, characterization and applications of hierarchical porous inorganic materials: a multi-dimensional approach

    Författare :Junzhong Lin; Junliang Sun; Xinwen Guo; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Zeolites; Porous material; Hierarchical; Synthesis; Catalysis; MFI zeolite; MWW zeolite; ZSM-5; TS-1; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : Zeolites are a type of microporous crystalline materials that have been widely used in industrial applications including separation, adsorption, and catalysis. However, great limitations on diffusion through these materials can arise due to the small pores present in mircoporous frameworks, and this can impact catalytic reactions in particular. LÄS MER

  3. 2. Synthesis and Applications of Colloidal Zeolites and Transition Metal Functionalized Ordered Mesoporous Carbons

    Författare :Walter Rosas Arbelaez; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; colloidal zeolites; CO2 capture; hierarchical zeolites; growth mechanism; Fe-N-doped ordered mesoporous carbon; fuel cell.;

    Sammanfattning : Porous materials have attracted a great deal of attention of the materials science community, owing to their physical and chemical properties including high surface areas, narrow pore size distribution, tunable pore diameters and variety of chemical compositions. These properties make them suitable for various applications such as adsorption, sensing, catalysis, energy, carbon capture and drug delivery. LÄS MER

  4. 3. Structured Nanoporous Materials for Biogas Upgrading

    Författare :Kritika Narang Landström; Farid Akhtar; Andreas Kaiser; George Shimizu; Marta-Lena Antti; Manuel Moliner Marín; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanoporous materials; biogas upgrading; zeolites; metal-organic framework; carbon capture; separation kinetics; Materialteknik; Engineering Materials;

    Sammanfattning : Porous materials have shown potential for solving one of the significant challenges to sequestering CO2 gas from point sources. Microporous materials, zeolites and metal-organic frameworks (MOFs) are porous materials with tailorable adsorptive properties to develop higher performance for an energy-efficient CO2 separation. LÄS MER

  5. 4. 3D Electron Microscopy Methods and Applications : Structures from Atomic Scale to Mesoscale

    Författare :Taimin Yang; Xiaodong Zou; Grüne Tim; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 3D Electron microscopy; continuous rotation electron diffraction; structure determination; data quality; electron tomography; mesoporous materials; zeolites; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : The crystal structure determines the physical properties of a material. The structure can be analysed at different levels, from atomic level, mesoscale level, all the way up to the macroscale level. LÄS MER

  7. 5. Tailoring of adsorptive properties of zeolites for biogas upgrading

    Författare :Kritika Narang; Farid Akhtar; Andreas Kaiser; George Shimizu; Chrystelle Salameh; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Engineering Materials;

    Sammanfattning : Biogas is a promising alternative fuel with low CO2 emissions and high market potential due to the abundance of organic biomass. Despite being a renewable form of energy, biogas consists of 40-45% CO2, which lowers its calorific value [1]. LÄS MER