Search for dissertations about: "Fuel cell systems"

Showing result 21 - 25 of 107 swedish dissertations containing the words Fuel cell systems.

  2. 21. Structure, interactions and functionality in novel electrolyte materials for fuel cell applications

    Author : Anna Martinelli; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; proton conductivity; ionic liquids; Polymer electrolyte membrane PEM ; fuel cell; vibrational spectroscopy;

    Abstract : It is today well known that fossil fuels will sooner or later be depleted, and the need to find alternative energy sources is now accepted. Among the diverse technologies developed to produce energy, considerable interest is currently directed to the hydrogen fuel cell, a device that converts chemical into electrical energy, is versatile and has a low environmental impact. READ MORE

  4. 22. Development of a methanol reformer for fuel cell vehicles

    Author : Bård Lindström; KTH; []
    Keywords : methanol; fuel cell vehicles; reforming; catalysis; partial oxidation; steam reforming; combined reforming;

    Abstract : Vehicles powered by fuel cells are from an environmentalaspect superior to the traditional automobile using internalcombustion of gasoline. Power systems which are based upon fuelcell technology require hydrogen for operation. The ideal fuelcell vehicle would operate on pure hydrogen stored on-board. READ MORE

  5. 23. Electrochemical Reactions in Polymer Electrolyte Fuel Cells

    Author : Maria Wesselmark; Svein Sunde; KTH; []
    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; Chemical engineering; 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

  6. 24. Systems Analysis of the Protein Secretory Pathway in Yeast and Human Cells

    Author : Amir Feizi; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; protein production; flux balance analysis; biopharmaceutical; secretory pathway: secretome; recombinant protein; genome-scale modeling; systems biology;

    Abstract : The cell was discovered by Robert Hooke in 1665, later in nineteen century the cell theory was developed as all organisms are composed of one or more cells. Since then, many tools and experimental methods have been developed to dissect and characterize the cell components which resulted in established solid scientific fields such as biochemistry, molecular cell biology and genetics. READ MORE

  7. 25. Electrocatalyst materials for low-temperature hydrogen fuel cells

    Author : Gerard Montserrat Siso; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Catalyst; Alloys.; Oxygen Reduction; Nanofabrication; Electrode; Fuel Cell; PEMFC; Hydrogen Oxidation; Model System; Thin Film; AEMFC;

    Abstract : Fuel cells have emerged as an alternative to satisfy the need of energy systems with net-zero emissions. Although fuel cells date back to the 1800s, it is only during the last decades that research and development has enabled true commercialization. READ MORE