Search for dissertations about: "electrolyte degradation"

Showing result 1 - 5 of 38 swedish dissertations containing the words electrolyte degradation.

  1. 1. The anode and the electrolyte in the MCFC

    University dissertation from Stockholm : Kemiteknik

    Author : Andreas Bodén; KTH.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; composite electrolytes; electrode kinetics; nickel solubility; porous electrode; reformate; water-gas shift reaction; electrolyte; electrolyte distribution; hydrogen oxidation reaction; ion segregation; mass transport; mathematical modelling; MCFC; molten carbonate fuel cell; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : A goal of the Swedish government is to increase the usage of renewable fuels and biomass-based fuels. Fuel cells, and especially the MCFC, are useful for these types of fuels. The Swedish market may benefit from the MCFC in two ways: increased efficiency of the biofuels and also utilisation of produced heat in district heating. READ MORE

  2. 2. Electrochemical Reactions in Polymer Electrolyte Fuel Cells

    University dissertation from Stockholm : KTH

    Author : Maria Wesselmark; KTH.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel cell; model electrodes; oxygen reduction; methanol oxidation; formic acid oxidation; hydrogen oxidation; CO oxidation; degradation; tungsten oxide; carbon support; Bränslecell; modellelektroder; syrgasreduktion; metanoloxidation; myrsyraoxidation; vätgasoxidation; CO oxidation; degradering; wolfram oxid; kolsupport; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Abstract : The polymer electrolyte fuel cell converts the chemical energy in a fuel, e.g. hydrogen or methanol, and oxygen into electrical energy. The high efficiency and the possibility to use fuel from renewable sources make them attractive as energy converters in future sustainable energy systems. READ MORE

  3. 3. Investigations of proton conducting polymers and gas diffusion electrodes in the polymer electrolyte fuel cell

    University dissertation from Stockholm : KTH

    Author : Peter Gode; KTH.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Theoretical chemistry; polymer electrolyte fuel cell; proton conducting membrane; porous electrode; gas permeability; degradation; water transport; Teoretisk kemi; NATURAL SCIENCES Chemistry Theoretical chemistry; NATURVETENSKAP Kemi Teoretisk kemi;

    Abstract : Polymer electrolyte fuel cells (PEFC) convert the chemically bound energy in a fuel, e.g. hydrogen, directly into electricity by an electrochemical process. Examples of future applications are energy conversion such as combined heat and power generation (CHP), zero emission vehicles (ZEV) and consumer electronics. READ MORE

  4. 4. Non-aqueous Electrolytes and Interfacial Chemistry in Lithium-ion Batteries

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Chao Xu; Uppsala universitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lithium-ion batteries; electrolyte; electrolyte additives; electrochemistry; interfacial chemistry; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Abstract : Lithium-ion battery (LIB) technology is currently the most promising candidate for power sources in applications such as portable electronics and electric vehicles. In today's state-of-the-art LIBs, non-aqueous electrolytes are the most widely used family of electrolytes. READ MORE

  5. 5. Electrolyte-Based Dynamics: Fundamental Studies for Stable Liquid Dye-Sensitized Solar Cells

    University dissertation from KTH Royal Institute of Technology

    Author : Jiajia Gao; KTH.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dye-sensitized solar cells; Stability; Electrolyte; Cobalt redox couples; Additives; Kemi; Chemistry;

    Abstract : The long-term outdoor durability of dye-sensitized solar cells (DSSCs) is still a challenging issue for the large-scale commercial application of this promising photovoltaic technique. In order to study the degradation mechanism of DSSCs, ageing tests under selected accelerating conditions were carried out. READ MORE