The Laboratory for Fuel Cell Systems of Graz University of Technology works in the areas of hydrogen production and low-temperature fuel cells.
Research on fuel cells
The research focuses on investigations on component degradation in order to increase the life span of low-temperature fuel cells. The research is done on purpose-built polymer electrolyte membrane fuel cells. Single cells, stacks, segmented cells for locally dissolved current density measurement, single cells with reference electrodes and half cells are available and used for research. In order to minimize the degradation of operational fuel cell stacks, the scientific basics for an on-line monitoring method have been developed. This method differs fundamentally from traditionally used systems (single cell voltage monitoring) with usual unfavourable operating conditions like the undersupply of gas or blockades of parts of the flow field by water. Within the material research of the laboratory, a technique for the production of carbon nanofiber electrodes has been generated, which leads to clearly higher electro-chemical corrosion resistance.
Research on hydrogen production
The research focuses on stationary hydrogen production and compact reforming systems for mobile fuel cell applications. For the stationary production of high-purity hydrogen a new process has been developed, based on the cyclic reduction and oxidation of metallic oxides, whereas material research for an increase of the cycle-stability is a major research topic. The research on fuel processors is in the field of catalyst development and reaction engineering. The scientific basics of catalysts for ethanol reforming and optimum process conditions for an ethanol to hydrogen reforming process are explored. Reformer components on basis of micro reactor technology are built and explored, whereas methods for catalyst coating of metallic microstructures are developed.