Abstract
AbstractWe report the activation of platinum catalyst thin films for oxygen reduction reaction in perchloric acid electrolytes when the films are subjected to mechanical stress. The catalysts films were deposited by magnetron sputtering on photosensitive chalcogenide As20Se80 semiconductor glass layer. When platinum films are illuminated by red laser light the glass under semitransparent platinum film exhibits photo‐induced flow. The material flow underneath platinum film induces mechanical stress resulting in film wrinkling and significant increase in its catalytic activity.
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