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Corresponding Author

Wei-lin XU(weilinxu@ciac.ac.cn)

Abstract

The expensive Pt-based catalyst suffers from its susceptibility to time-dependent drift, methanol crossover, and carbon monoxide (CO) deactivation, which will block the large-scale commercial application of fuel cells. It is, therefore, necessary to develop efficient, low-cost, highly stable non-precious metal oxygen reduction reaction (ORR) catalysts with high catalytic performance. Here, we will pay attention to the research progress of non-precious metal and heteroatom-doped (N, B, P, S, F) metal-free ORR catalysts. Importantly, we mainly focus on the work developed by Xu’s group with the Fe-based non-precious metal and F/NF-doped metal-free ORR catalysts. The purpose of these works is to improve the activity and durability of the catalysts based on cheap materials and simple methods. Meanwhile, the combination of theoretical calculations in catalytic activity and mechanism will explain the origin of high activity, which will support strong theoretical foundation for experimental design in ORR catalysts with high performance in future.

Graphical Abstract

Keywords

oxygen reduction reaction, non-precious metal catalyst, metal-free catalyst, high performance/cost ratio, high stability, catalytic mechanism, theoretical level

Publication Date

2015-04-28

Online Available Date

2015-01-15

Revised Date

2014-11-20

Received Date

2014-10-10

References

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