Pyrolysis-driven synthesis of nanoscale carambola-like carbon decorated with atomically dispersed Fe sites toward efficient oxygen reduction reaction

Hongsa Han; Yunlong Zhang; Yuanyuan Cong; Jiaqi Qin; Zihui Zhai; Xueliang Wang; Rui Gao; Guanghui Zhang; Xinwen Guo; Yujiang Song

doi:10.1039/D0CY01735C

Pyrolysis-driven synthesis of nanoscale carambola-like carbon decorated with atomically dispersed Fe sites toward efficient oxygen reduction reaction†

Hongsa Han,^a Yunlong Zhang,^a Yuanyuan Cong,^a Jiaqi Qin,^a Zihui Zhai,^a Xueliang Wang,^a Rui Gao,^a Guanghui Zhang,

^a Xinwen Guo

^a and Yujiang Song

*^a

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* Corresponding authors

^a State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
E-mail: yjsong@dlut.edu.cn

Abstract

We report the pyrolysis of uniform nanocapsules of iron^III porphyrin metal–organic frameworks (MOF PCN-222), evolving into carambola-like electrocatalysts enclosed by six concave facets. The nanocarambolas merely comprise of atomically dispersed Fe sites and exhibit efficient activity and durability toward the oxygen reduction reaction (ORR) relative to commercial Pt/C.

Catalysis Science & Technology

Pyrolysis-driven synthesis of nanoscale carambola-like carbon decorated with atomically dispersed Fe sites toward efficient oxygen reduction reaction†

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