title: Edge-rich and dopant-free graphene as a highly efficient metal-free electrocatalyst for the oxygen reduction reaction.
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.
authors.affiliation: 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.
authors.forename: Li
authors.initials: L
authors.lastname: Tao
authors.affiliation: Department of Applied Chemistry, Nanjing Tech University, Nanjing, 211816, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.affiliation: 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.
authors.forename: Shuo
authors.initials: S
authors.lastname: Dou
authors.affiliation: 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.
authors.forename: Zhaoling
authors.initials: Z
authors.lastname: Ma
authors.affiliation: 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.
authors.forename: Jia
authors.initials: J
authors.lastname: Huo
authors.affiliation: 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.
authors.forename: Shuangyin
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Macromolecular Science and Engineering Case Western Reserve University, Cleveland, OH 44106, USA. liming.dai@case.edu.
authors.forename: Liming
authors.initials: L
authors.lastname: Dai