Search for dissertations about: "cathode layer"

Showing result 16 - 20 of 61 swedish dissertations containing the words cathode layer.

  2. 16. Engineering of metal microstructures : process-microstructure-property relationships for electrodeposits

    Author : Jens A. D. Jensen; Dieter Landolt; Linköpings universitet; []
    Keywords : ;

    Abstract : The relationships between growth-conditions, topography and microstructure, and physical properties of electrochemically deposited copper, nickel and zinc-iron alloys were studied. Growth was investigated while systematically varying process parameters such as electrolyte chemistry, type and concentration of additives, current density, and mass transport. READ MORE

  4. 17. Numerical simulation of multi-scale transport processes and reactions in pem fuel cells using two-phase models

    Author : Munir Khan; Jinliang Yuan; Bengt Sundén; Värmeöverföring; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; numerical analysis; multi-scale; multi-phase; reacting flows; multi-component;

    Abstract : A numerical study for the cathode of a PEM fuel cell has been performed in this study. The results have been limited to cathode only because, in PEM fuel cells, the oxygen reduction reactions, ORRs, are considered the rate limiting reactions and govern the fuel cell performance. READ MORE

  5. 18. Chargeand Light Management in Organic Solar Cells

    Author : Zheng Tang; Olle Inganäs; René Janssen; Linköpings universitet; []
    Keywords : ;

    Abstract : Solar cells based on organic materials are extensively investigated both in academia and industry, owing to their potential of being inexpensive, lightweight, flexible and suitable for roll-to-roll production. Performance of organic solar cells has been rapidly improving, and the state of the art organic solar cells have an efficiency over 10%. READ MORE

  6. 19. Chemical and electronic structure of electroluminescent materials and interfaces in polymer-LEDs

    Author : Annica Andersson; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; conjugated polymer; XPS; UPS; LED; ITO; interface; chemical interaction; doping;

    Abstract : Following the discovery that conjugated polymers can be used as the emitting layer in light­ emitting devices, extensive studies on these materials have been carried out. In a few years, due to the development of new materials and an increasing knowledge of the underlying chemistry and physics, the performance has improved a lot. READ MORE

  7. 20. Stability Phenomena in Novel Electrode Materials for Lithium-ion Batteries

    Author : Mårten Stjerndahl; Torbjörn Gustafsson; John O. Thomas; Robert M. Kostecki; Uppsala universitet; []
    Keywords : Inorganic chemistry; Li-ion battery; electrode material; intermetallic; AlSb; lithium iron phosphate; lithium iron silicate; photoelectron spectroscopy; Oorganisk kemi;

    Abstract : Li-ion batteries are not only a technology for the future, they are indeed already the technology of choice for today’s mobile phones, laptops and cordless power tools. Their ability to provide high energy densities inexpensively and in a way which conforms to modern environmental standards is constantly opening up new markets for these batteries. READ MORE