Edge-rich and dopant-free graphene as a highly efficient metal-free electrocatalyst for the oxygen reduction reaction

Li Tao; Qiang Wang; Shuo Dou; Zhaoling Ma; Jia Huo; Shuangyin Wang; Liming Dai

doi:10.1039/c5cc09173j

Edge-rich and dopant-free graphene as a highly efficient metal-free electrocatalyst for the oxygen reduction reaction

Chem Commun (Camb). 2016 Feb 14;52(13):2764-7. doi: 10.1039/c5cc09173j.

Authors

Li Tao¹, Qiang Wang², Shuo Dou¹, Zhaoling Ma¹, Jia Huo¹, Shuangyin Wang¹, Liming Dai³

Affiliations

¹ State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China. shuangyinwang@hnu.edu.cn.
² Department of Applied Chemistry, Nanjing Tech University, Nanjing, 211816, China.
³ Department of Macromolecular Science and Engineering Case Western Reserve University, Cleveland, OH 44106, USA. liming.dai@case.edu.

PMID: 26757794
DOI: 10.1039/c5cc09173j

Abstract

For the first time, we developed edge-rich and dopant-free graphene as a highly efficient ORR electrocatalyst. Electrochemical analysis revealed that the as-obtained edge-rich graphene showed excellent ORR activity through a one-step and four-electron pathway. With a similar strategy, edge-rich carbon nanotubes and graphite can also be obtained with enhanced ORR activity. This work confirms the important role of edge carbon in efficient ORR electrocatalysis without interruption by any other dopants.

Publication types

Research Support, Non-U.S. Gov't