Sökning: "cation exchange"
Visar resultat 31 - 35 av 49 avhandlingar innehållade orden cation exchange.
31. Interface-Assisted Perovskite Modulations for High-Performance Light-Emitting Diodes
Sammanfattning : Metal halide perovskites have emerged as a class of promising materials for a wide range of optoelectronic devices. Compared with traditional inorganic and organic semiconductors, perovskite materials can be easily processed via solution-based techniques at low temperatures and exhibit high photo-luminescence efficiency, outstanding colour purity, and superior charge transport properties, showing great promise for cost-effective and high-performance light-emitting diodes (LEDs). LÄS MER
32. Study of the Synthesis of ZSM-5 from Inexpensive Raw Materials
Sammanfattning : ZSM-5 is an aluminosilicate with high silica ratio with suitable properties for catalysis, ion exchange, adsorption and membrane applications. ZSM-5 is usually produced industrially from concentrated systems in which there is formation of an amorphous gel phase. LÄS MER
33. Accelerate ageing of refuse-derived-fuel (RDF) fly ashes
Sammanfattning : Ashes have properties that can be exploited in various applications, e.g. some ashes can be used in the construction of barriers in a landfill final top cover. LÄS MER
34. Interfacial Adhesion Failure : Impact on print-coating surface defects
Sammanfattning : The aim of this work was to develop a solid knowledge on formulation effects controlling offset ink-paper coating adhesion and to identify key factors of the coating and printing process affecting it. Focus lay on comprehending the impact of pigment dispersant on ink-paper coating adhesion and ultimately on the print quality of offset prints. LÄS MER
35. Functional Photo-electrochemical Devices for Solar Cellsand Solar Fuels Based on Molecular Components
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