Isolated Fe and Co dual active sites on nitrogen-doped carbon for a highly efficient oxygen reduction reaction

Diyang Zhang; Wenxing Chen; Zhi Li; Yuanjun Chen; Lirong Zheng; Yue Gong; Qiheng Li; Rongan Shen; Yunhu Han; Weng-Chon Cheong; Lin Gu; Yadong Li

doi:10.1039/C8CC00988K

Isolated Fe and Co dual active sites on nitrogen-doped carbon for a highly efficient oxygen reduction reaction†

Diyang Zhang,‡^a Wenxing Chen,‡^a Zhi Li,*^a Yuanjun Chen,^a Lirong Zheng,

^b Yue Gong,

^c Qiheng Li,^a Rongan Shen,^a Yunhu Han,^a Weng-Chon Cheong,^a Lin Gu^c and Yadong Li

*^a

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* Corresponding authors

^a Department of Chemistry, Tsinghua University, Beijing 100084, China
E-mail: zhili@mail.tsinghua.edu.cn, ydli@mail.tsinghua.edu.cn

^b Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

^c Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Abstract

We successfully prepared Fe and Co isolated single atoms on metal–organic framework derived nitrogen-doped carbon (FeCo-ISAs/CN) by an adsorption–calcination strategy. The obtained FeCo-ISAs/CN exhibited top-level catalytic reactivity for the alkaline oxygen reduction reaction (ORR) with a half-wave potential of 0.920 V, which was 70 mV more positive than that of commercial Pt/C. Moreover, the catalyst was durable and showed negligible activity decay in the alkaline ORR during 5000 voltage cycles.

Chemical Communications

Isolated Fe and Co dual active sites on nitrogen-doped carbon for a highly efficient oxygen reduction reaction†

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Isolated Fe and Co dual active sites on nitrogen-doped carbon for a highly efficient oxygen reduction reaction

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