Search for dissertations about: "Hydrothermal method"

Showing result 1 - 5 of 53 swedish dissertations containing the words Hydrothermal method.

2. 1. From hydrothermal carbonization to blue hydrochars and activated carbons : Adsorption of volatile organic compounds and heavy metals

   Author : Vahid Saadattalab; Niklas Hedin; Satu Ojala; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hydrothermal carbonization; hydrochars; activated carbon; volatile organic compounds; heavy metals; materialkemi; Materials Chemistry;

   Abstract : Hydrothermal carbonization of carbohydrate and biomass is a straightforward method for preparing hydrochars at low temperature. Hydrochars are more carbonized than their precursors. Hydrochars themselves are carbon precursors for preparing activated carbons. Activated carbons are porous materials that can be used for water and air purification. READ MORE

4. 2. Synthesis of ZnO and transition metals doped ZnO nanostructures, their characterization and sensing applications

   Author : Chan Oeurn Chey; Magnus Willander; Omer Nour; Andrej Kuznetsov; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Synthesis ZnO nanostructures; TM-doped ZnO NRs; Hydrothermal method; Biosensors; Piezoresistive sensors; UV photodetectors; Diluted magnetic semiconductors;

   Abstract : Nanotechnology is a technology of the design and the applications of nanoscale materials with their fundamentally new properties and functions. Nanosensor devices based on nanomaterials provide very fast response, low-cost, long-life time, easy to use for unskilled users, and provide high-efficiency. READ MORE

5. 3. Synthesis of metal oxide nanostructures, their characterization and chemical sensing applications

   Author : Zafar Hussain Ibupoto; Magnus Willander; Bansi Malhotra; Linköpings universitet; []
   Keywords : Hydrothermal method; seed layer; ZnO nanorods; ZnO nanotubes; immunosensor; iron ferrite; glucose sensor; well aligned ZnO nanorods; CuO nanoleaves; CuO nanosheets; CuO bundle of nanowires;

   Abstract : The existence of nanomaterials is a revolutionizing step towards the fabrication of nanodevices and it enhances the enthusiasm of the researchers for the development of new devices with improved performance relative to that of bulk material based devices. Among the nanomaterials, the metal oxide nanostructures have drawn the attention of scientific community in the development of different biochemical and biomedical nanodevices in the recent time. READ MORE

6. 4. 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

7. 5. ZnO and CuO Nanostructures: Low Temperature Growth, Characterization, their Optoelectronic and Sensing Applications

   Author : Gul Amin; Magnus Willander; Omer Nour; Anastasios Travlos; Linköpings universitet; []
   Keywords : Zinc oxide; Copper II oxide; Nanostructures; Hydrothermal growth; Light emitting diodes.;

   Abstract : One dimensional (1-D), zinc oxide (ZnO) and copper (II) oxide (CuO), nanostructures have great potential for applications in the fields of optoelectronic and sensor devices. Research on nanostructures is a fascinating field that has evolved during the last few years especially after the utilization of the hydrothermal growth method. READ MORE