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Corresponding Author

Wei XING(zmzhang@jlu.edu.cn)

Abstract

Platinum-based materials, the state-of-the-art catalysts for fuel cells, suffer from prohibitive costs, limited resources and insufficient durability. Accordingly, tremendous efforts were made in searching for efficient, durable and inexpensive alternatives to precious-metal electrocatalysts for the oxygen reduction reaction (ORR). Transition-metals (Fe, Co)/nitrogen co-doped hybrids, heteroatom (N, P, S, F, et al) doped carbons and composites with transition-metals encapsulated in graphitic layers are reported as the most efficient non-precious metal ORR catalysts. Among the various non-precious metal ORR catalysts, transition-metals encased in graphitic layer catalysts are a novel type of catalysts for ORR with high activity and durability, and thus, the in-depth researches are highly desirable. Here, we present the recent research progress in transition-metals encased catalysts from the aspects of synthesis, activity and catalytic mechanism, in an effort to promote the developments of these catalysts.

Graphical Abstract

Keywords

oxygen reduction reaction, transition-metals encased, non-precious metal catalysts

Publication Date

2016-04-28

Online Available Date

2016-03-11

Revised Date

2016-02-29

Received Date

2016-01-05

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