Sökning: "Environmental catalysis"

Visar resultat 6 - 10 av 58 avhandlingar innehållade orden Environmental catalysis.

1. 6. Development of Nanoporous Inorganic Carbonates for Pharmaceutical and Environmental Applications

   Författare :Maria Vall; Ocean Cheung; Maria Strømme; Jessica Rosenholm; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mesoporous magnesium carbonate; drug delivery; water purification; CO2 capture; catalysis; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

   Sammanfattning : Mesoporous magnesium carbonate (MMC) is a highly porous, anhydrous material which can be synthesized without the use of templates. This thesis shows how post- and in synthesis modification of MMC can create porous inorganic carbonates suitable for different pharmaceutical and environmental applications. LÄS MER

3. 7. Microbial communities in biological electrochemical systems

   Författare :Marie Abadikhah; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; viruses; microbial ecology. microbial electrolysis cells; bioelectrochemical system; biocathode; bioanode; microbial community assembly;

   Sammanfattning : Biological electrochemical systems (BES) can be used as biosensors and for recovery of resources from waste streams. BES utilizes microbial communities that grow on the surface of electrodes in the form of biofilms. LÄS MER

4. 8. Mononuclear Ruthenium Complexes that Catalyze Water to Dioxgen Oxidation

   Författare :Lianpeng Tong; Licheng Sun; Randolph Thummel; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ruthenium complex; Homogeneous catalysis; Water oxidation; O2 evolution; anionic ligand; Molecular catalyst; Electrocatalysis; Kinetics; Artificial photosynthesis; Light-driven; Immobilization of catalyst;

   Sammanfattning : The theme of this thesis is the development of mononuclear Ru-based complexes that are capable of catalyzing the water oxidation (or O2-evolving) reaction, e.g. 2 H2O → O2 + 4 H+ + 4 e−. Several families of mononuclear Ru water oxidation catalysts were designed and prepared. LÄS MER

5. 9. N-Heterocyclic Carbene Catalysis in Organic Synthesis - A Green Chemistry Approach

   Författare :Linda Ta; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; aerobic oxidation; ionic liquid; sustainability; NHC catalysis; oxidative NHC catalysis; green chemistry; OTHO; Organocatalysis;

   Sammanfattning : The twelve principles of green chemistry were created as a response to the multiple environmental issues caused by the release of waste from the chemical industry. The principles acts as a guide in the development of sustainable chemical processes for the syntheses of important molecules needed to sustain our living standards. LÄS MER

7. 10. Studies of Supported Catalysts for Environmental Applications: - Flow Reactor Measurements, Monte Carlo Simulations and High Throughput Screening

   Författare :Peter Thormählen; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; catalytic oxidation of carbon monoxide; supported heterogeneous catalysts; flow reactor measurements; high throughput screening; low temperature catalytic activity; cobalt oxide; platinum; temperature programmed methods; Monte Carlo simulations; environmental catalysis;

   Sammanfattning : The use of heterogeneous catalysts for environmental applications, primarily for reduction of harmful emissions from vehicles and stationary sources, has successively increased during the last three decades. Driven by emission regulations, research and development within this area attract large interest and resources, especially for automotive applications. LÄS MER