Search for dissertations about: "Nanostructured materials"

Showing result 1 - 5 of 146 swedish dissertations containing the words Nanostructured materials.

  1. 1. Synthesis of Nanostructured Thermoelectric Materials

    Author : Ali Saramat; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microemulsion; figure-of-merit ZT ; nanostructured; thermal conductivity; clathrate; top seeded solution growth TSSG ; thermoelextricity; Czochralski; Seebeck coefficient; electrical resistivity; skutterudite; phonon glass-electron crystal PCEC ;

    Abstract : .... READ MORE

  2. 2. Nanostructured Catalysts and Electrode Materials for PEM Fuel Cells

    Author : Kjell Wikander; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; PEMFC; mesoporous; alkylthiol; alkylamine; carbon; microemulsion; Fuel cell; surfactants; nanoparticles; electron microscopy; Pt; nanocasting; silica; cathode; phase transfer method; oxygen reduction;

    Abstract : The Polymer Electrolyte Membrane Fuel Cell (PEMFC) is a promising energy converting technology for powering automotives and electrical equipment using hydrogen gas as fuel and producing water as the only exhaust. The active carbon-supported platinum catalyst present in the electrodes limits the maximum power generation in state-of-the-art PEMFCs due to platinum’s poor activity for the oxygen reduction reaction (ORR) taking place at the cathode. READ MORE

  3. 3. Mesoporous Materials for Fast Charging Electrochemical Energy Storage

    Author : Giulio Calcagno; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; electrochemical energy storage; redox-active electrolytes; mesoporous carbon; hybrid supercapacitors; fast charging storage; ordered mesoporous materials; mesoporous titanium dioxide; lithium-ion battery;

    Abstract : High performing electrochemical energy storage (EES) devices are needed to cope with the increasing energy requirements of modern society. Electrode materials must store lots of energy, charge/discharge fast and be environmentally friendly. READ MORE

  4. 4. Fabrication of Nanostructured Materials for Energy Applications

    Author : Shanghua Li; Mamoun Muhammed; Sanjay Mathur; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Materials Chemistry; Materials chemistry; Materialkemi;

    Abstract : World energy crisis has triggered more attention to energy saving and energy conversion systems with high efficiency. There is a growing awareness that nanoscience and nanotechnology can have a profound impact on energy generation, conversion, and recovery. READ MORE

  5. 5. Development of syntheses for nanostructured titania and silica

    Author : Gunnar Örn Simonarson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lithium intercalation; nanoparticles; X-ray characterization; mesoporous silica; mesoporous titania; spray deposition; Titanium dioxide;

    Abstract : Nanostructured titania is of great interest for a variety of energy and environmental applications, including conversion of solar energy, for energy storage systems and removal of organic pollutants in water and air. Titania is composed of earth abundant elements, it is environmentally friendly and chemically stable which makes it an attractive material to utilize. READ MORE