Search for dissertations about: "HRTEM"

Showing result 11 - 15 of 26 swedish dissertations containing the word HRTEM.

  2. 11. Electrochemical water splitting based on metal oxide composite nanostructures

    Author : Aneela Tahira; Omer Nur; Magnus Willander; Rasit Turan; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Composite metal oxides; hydrothermal method; water splitting; Tafel slope; stability; durability; alkaline media; acidic media;

    Abstract : The occurrence of available energy reservoirs is decreasing steeply, therefore we are looking for an alternative and sustainable renewable energy resources. Among them, hydrogen is considered as green fuel with a high density of energy. READ MORE

  4. 12. Synthesis of tailored nanoparticles for palladium-based oxidation catalysts

    Author : Yanyue Feng; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; supported catalysts; CO oxidation; morphology and surface properties; in situ spectroscopy; Pd and Au@Pd nanoparticles;

    Abstract : The immense changes of physical and chemical properties of materials caused by the transition from microscale to nanoscale have been attracting scientific attention for decades. Rapid development of modern techniques triggers the attention on the multicomponent nanoparticle catalysts with enhanced catalytic activities. READ MORE

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

    Author : Arnaud Mayence; Lennart Bergström; Liberato Manna; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nanoparticles; electron microscopy; Materials Chemistry; materialkemi;

    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

  6. 14. The Microstructure of Metal Oxide Additive Silicon Nitride Ceramics

    Author : Maria Knutson Wedel; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; microstructure; SEM; HIP; TEM; ZrO2; Si3N4;

    Abstract : This work is concerned with Si3N4 ceramics fabricated with different metal oxide additives, viz. Y2O3, Al2O3, ZrO2 and ZrO2(+3 mol% Y2O3), which have been densified by hot isostatic pressing (HIP). READ MORE

  7. 15. High resolution microstructural characterization of oxide thin films and interfaces

    Author : Nikolina Tuzla; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; oxides; Microstructure; TEM; thin films; interfaces; HAADF STEM; YSZ.; SrTiO3; 2DEG; LaAlO3; heterostructures;

    Abstract : Oxide interfaces can introduce properties that are different compared to thecorresponding crystal bulk properties. The properties can be tuned by changing thestructure. It has become clear that these oxide interface systems are potentiallysuitable for future electronic devices with unique and tailored properties. READ MORE