Sökning: "Carbon transfer efficiency"

Visar resultat 21 - 25 av 68 avhandlingar innehållade orden Carbon transfer efficiency.

1. 21. Electrochemical Application and AFM Characterization of Nanocomposites : Focus on Interphase Properties

   Författare :Hui Huang; Per Claesson; Orlando Rojas; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electrochemical sensor; nanocomposite; graphene; carbon nanotubes; phytic acid; polyaniline; corrosion protection; silica nanoparticles; atomic force microscopy; interphase; Kemi; Chemistry;

   Sammanfattning : The use of graphene and conductive polyaniline nanomaterials in the field of electrochemistry is increasing due to their excellent conductivity, rapid electron transfer and high specific surface area. However, these properties are strongly dependent on the preparation processes. LÄS MER

3. 22. Self-assembly Strategies for Functional DNA Nanostructures

   Författare :John Tumpane; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; carbon nanotube; polarised spectroscopy; nanotechnology; self-assembly; orientation; lipid membrane; gel electrophoresis; DNA;

   Sammanfattning : The technological revolution of the twentieth century was famously subject to Moore’s law which related the rate of growth to the ability to scale-down the size of the components – size matters. Several decades later we are, however, approaching the limit of what is possible with silicon wafers. LÄS MER

4. 23. Low-Temperature Oxidation of CO and Volatile Organic Compounds over Supported Platinum Catalysts

   Författare :Karl Arnby; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hexamethyldisiloxane; alumina; catalytic deactivation; environmental catalysis; platinum; volatile organic compounds; carbon monoxide; low-temperature activity;

   Sammanfattning : The catalytic oxidation of carbon monoxide (CO) and volatile organic compounds (VOC) is important for the reduction of harmful emissions from both vehicles and from stationary sources. Both these applications suffer from poor catalytic efficiency at lower temperatures. LÄS MER

5. 24. Environmental and Thermal Performance of District Heating Pipes

   Författare :Morgan Fröling; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; district heat distribution; cyclopentane; district heating pipe; long-term thermal performance; life cycle assessment; insulation; polyurethane foam; environmental performance; carbon dioxide; HFC-365mfc;

   Sammanfattning : In order to move towards a sustainable society we need to increase the efficiency of our use of available resources, not only in economic terms but also in ecological terms. District heating, the utilisation of centrally produced heat for space heating and domestic hot water generation, has the potential to contribute to the eco-efficient use of energy resources in the parts of the world where space heating is needed. LÄS MER

7. 25. Experimental and Theoretical Studies of Cis-Trans Photoisomerizations and Conditions for Effective Catalysis

   Författare :Helene Möllerstedt; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; catalysis; triplet state; quantum chain process; cis-trans isomerization; adiabatic; potential energy surface; density functional theory; energy transfer;

   Sammanfattning : Triplet-sensitized cis-trans photoisomerizations have been investigated both experimentally and theoretically. Mapping of the reaction path for isomerization of 1,4-bis(1-propenyl)benzene (1) on the triplet state energy surface has been done by quantum yield measurements and laser flash photolysis. LÄS MER