Mit gepulsten Lasern wird die passende Oberfläche erzeugt.
In order for a fuel cell to work, it needs an oxidising agent. TU Wien has now found a way to explain why oxygen does not always enter fuel cells effectively, rendering them unusable. Fuel cells use a simple chemical reaction, such as the combination of oxygen and hydrogen to form water, to generate electricity. The question of which is the best material to use when making ceramic fuel cells is not a straightforward one, however. New materials are required that act as a catalyst for the chemical reaction required with maximum efficiency, but that also last as long as possible without their properties changing. Previous efforts to develop materials that fulfil these requirements have largely been based on trial and error. However, teams at TU Wien have now managed to find a way to make targeted alterations to the surface of fuel cells on an atomic scale and take measurements at the same time.
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