Exploring cheap and stable electrocatalysts to replace Pt for the oxygen reduction reaction (ORR) is significant for the large-scale application of fuel cells, especially in polymer electrolyte membrane fuel cells. In this paper, we have briefly reviewed the recent advances in the Fe (or Co)/N/C ORR catalysts in acidic medium including their preparation, structural characterization and related mechanism.
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Sun et al. (2017) studied this question.
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