Sökning: "Li Sun"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Li Sun.

1. 1. Biogas production from lignocellulosic materials : microbial community structure

   Författare :Li Sun; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Lignocellulosic materials such as agricultural plant residues are widely available in large amounts and can be used for production of biogas without the risk of competition for arable land. However, the intricate structure of lignocellulose, a major component of the plant cell wall, limits microbial degradation and consequently results in low degradation rate and low biogas yield. LÄS MER

3. 2. Functional Photo-electrochemical Devices for Solar Cellsand Solar Fuels Based on Molecular Components

   Författare :Lin Li; Licheng Sun; Roel van de Krol; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; artificial photosynthesis; dye sensitized solar cell; hydrogen generation catalyst; nickel oxide NiO ; titanium dioxide TiO2 ; water oxidation catalyst; water splitting;

   Sammanfattning : This thesis concerns the development and the study of molecular functional photo-electrochemical cells (PEC) for solar cells and solar fuels.The first chapter gives a general introduction about photosynthesis, dye-sensitized solar cell and photo-electrochemical device for water splitting. LÄS MER

4. 3. Performance of High-temperature Coatings : Oxidation and Interdiffusion

   Författare :Xiaoyu Sun; Ru Lin Peng; Johan Moverare; Xin-Hai Li; Lindwall Greta; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; coating; diffusion; phase transformation; oxidation;

   Sammanfattning : The use of aluminiferous coatings profoundly improves the service life of superalloys but leads to the microstructural degradation of superalloys and thus the loss of mechanical properties. To solve this trade-off, two strategies were employed in this research. LÄS MER

5. 4. Design of Water Splitting Devices via Molecular Engineering

   Författare :Fusheng Li; Licheng Sun; Franc Meyer; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electrochemical-driven water splitting; artificial photosynthesis; molecular catalysts; Kemi; Chemistry;

   Sammanfattning : Converting solar energyto fuels such as hydrogen by the reaction of water splitting is a promising solution for the future sustainable energy systems. The theme of this thesis is to design water splitting devices via molecular engineering; it concerns the studies of both electrochemical-driven and photo-electrochemical driven molecular functional devices for water splitting. LÄS MER

7. 5. First-principles study of materials for advanced energy technology

   Författare :Xiaojie Li; Levente Vitos; Jian Sun; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials Science and Engineering; Teknisk materialvetenskap;

   Sammanfattning : The present thesis addresses promising material solutions for fusion reactors from a theoretical point of view. We focus on two specific systems: W-based alloys used as plasma-facing materials and reduced activation ferritic/martensitic (RAFM) steels used as structural materials of breeding-blanket. LÄS MER