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Studying the corrosion behavior of catalyst support materials is significant for understanding the degradation of polymer electrolyte membrane (PEM) fuel cell performance and developing durable electrocatalysts. The oxidation of Vulcan carbon black (the most widely used catalyst support for PEM fuel cells) was investigated using various electrochemical stressing methods (fixed-potential holding vs...
The understanding of the degradation mechanisms of electrocatalysts is very important for developing durable electrocatalysts for polymer electrolyte membrane (PEM) fuel cells. The degradation of Pt/C electrocatalysts under potential-static holding conditions (at 1.2V and 1.4V vs. RHE) and potential step conditions with the upper potential of 1.4V for 150s and lower potential limits (0.85V and 0.60V)...
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