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The stability of highly disperse 50 wt % Pt catalysts deposited on carbon supports with various porosity and morphology is tested in accelerated oxidative experiments in the potential range of 1–1.5 V (RHE) in 0.1 M HClO4 solution. The electrochemically active surface area of platinum (SPt) is determined based on the charge of adsorbed hydrogen by the cyclic voltammetry (CVA) method. The specific...
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