Search for dissertations about: "Nanoflakes"

Found 5 swedish dissertations containing the word Nanoflakes.

2. 1. Fabrication and characterization of ZnO nanostructures for sensing and photonic device applications

   Author : Syed M. Usman Ali; Magnus Willander; Omer Nour; Frank Bier; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nanotechnology; zinc oxide; nanowires nanorods; nanotubes; nanoporous nanoflakes; electrochemical sensor and photonic devices;

   Abstract : Nanotechnology is an emerging inter-disciplinary paradigm which encompasses diverse fields of science and engineering converge at the nanoscale. This nanoscale science and nanostructure engineering have well demonstrated in the fabrication of sensors/transducers devices with faster response time and better sensitivity then the planer version of the sensor’s configurations. READ MORE

4. 2. Processing 2D nanomaterials into inorganic-polymer composite films and fibers with well-defined properties

   Author : Jian Chang; Jiayin Yuan; Ximin He; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; 2D materials; advanced composite materials; crosslinking chemistry; high mechanical performance; solar heating; personalized thermoregulation; solar-driven water evaporation; materialkemi; Materials Chemistry;

   Abstract : 2D materials such as graphene, graphene oxide (GO), reduced graphene oxide (rGO) and MXene, possess unique properties, e.g., high carrier mobilities, mechanical flexibility, good thermal conductivity, and high optical and UV adsorption. READ MORE

5. 3. Transition Metal-Based Electrocatalysts for Alkaline Water Splitting and CO2 Reduction

   Author : Zhen Qiu; Tomas Edvinsson; Kevin Sivula; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Alkaline water splitting; CO2 reduction; Electrocatalyst; In-situ Raman spectroscopy.; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

   Abstract : With excessive usage of fossil fuels and ever-increasing environmental issues, numerous efforts have been devoted to the development of renewable energies for the replacement of traditional fossil fuels to reduce greenhouse gas emission and realize the rapidly growing demand for global energy. Renewable energies, however, often show diurnal and seasonal variations in power output, forming a need for energy storage to meet people’s continuous energy supply. READ MORE

6. 4. Graphene Heat Spreaders for Electronics Thermal Management Applications

   Author : Yong Zhang; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; test platform; heat spreader.; transfer; Graphene; thermal management;

   Abstract : Graphene shows great potential for applications in electronics due to its outstanding physical properties such as extremely high electron mobility, high thermal conductivity, high Young’s modulus and very high surface-to-volume ratio. Among these attractive properties, the high intrinsic thermal conductivity is a critical advantage for the application of graphene in electronics to alleviate heat dissipation problems. READ MORE

7. 5. Engineering inorganic nanostructured composites for boosting H2 and O2 evolution reactions

   Author : Getachew Solomon; Isabella Concina; Alberto Vomiero; Sixto Gimenez; Luleå tekniska universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrogen evolution HER ; Oxygen evolution reaction OER ; Oxygen reduction reaction ORR ; Water splitting; Electrocatalyst; Atomic layer deposition; Core-shell structure; Experimentell fysik; Experimental Physics;

   Abstract : Hydrogen is considered a promising energy source with zero emission of CO2; it can provide higher energy density compared to other sources of energy. The amount at which H2 is produced, and the method of production need further improvement for the advancement of hydrogen energy technologies. READ MORE