Now showing items 1-7 of 7
Der Einfluss der Adsorption auf die Sauerstoffreduktionsreaktion : perfluoralkylierte Phosphorsäurederivate als Modellverbindungen zur Untersuchung der Anionenadsorption an Platin
(Universität Ulm, 2019-02-11)
In this work, the influence of anion-adsorption on the oxygen reduction reaction (ORR) at platinum electrocatalysts is evaluated. By chemical modification of the electrolyte composition, polarization-losses for the ORR ...
The Effect of Voltage Cycling on Catalyst Degradation in Automotive PEM Fuel Cells
(Universität Ulm, 2019-04-11)
Durability and cost are the two major remaining challenges for the commercialization of fuel cells in passenger vehicles. The platinum catalyst is one of the most expensive components in a fuel cell and degrades during ...
Research and optimizations of iron composites as negative electrode materials for aqueous alkaline batteries
(Universität Ulm, 2019-04-09)
Iron is one of the most abundant elements in the earth’s crust and its applications are myriad; one of them is electrochemical storage of energy as battery electrodes. Despite the potential economic advantages, its extensive ...
Nanostructured Ni(OH)2 and MnO2 cathode designs for aqueous asymmetric double layer capacitors
(Universität Ulm, 2019-04-29)
The roles of the current collectors in electrode fabrication and designs for electrochemical energy storage devices have become increasingly important. Ni based current collectors have been deployed in aqueous-alkaline ...
Analysis of film formation in graphite electrode of Li-ion cells using glow discharge optical emission spectroscopy
(Universität Ulm, 2019-07-15)
Li-ion batteries are today's most promising candidates regarding stationary and mobile electrochemical energy storage. However, performance and lifetime-limiting processes occur during their usage, which hinder the ...
Cobalt free nanomaterials as positive electrodes for Lithium ion battery
(Universität Ulm, 2019-03-04)
Cathode materials with improved specific energy, energy density, safety and reduced cost are essential for developing next generation Li-ion battery technology. This can be made possible by exploring new chemistries of ...
Two phase Monte Carlo modeling of gas and water transport in PEM fuel cells
(Universität Ulm, 2019-07-16)
Low temperature polymer electrolyte membrane fuel cells are known as clean energy converters, which produce electrical energy as the result of the cell electrochemical reaction between hydrogen and oxygen, where water and ...