title: S, N Dual-Doped Graphene-like Carbon Nanosheets as Efficient Oxygen Reduction Reaction Electrocatalysts.
abstract: Replacement of rare and precious metal catalysts with low-cost and earth-abundant ones is currently among the major goals of sustainable chemistry. Herein, we report the synthesis of S, N dual-doped graphene-like carbon nanosheets via a simple pyrolysis of a mixture of melamine and dibenzyl sulfide as efficient metal-free electrocatalysts for oxygen reduction reaction (ORR). The S, N dual-doped graphene-like carbon nanosheets show enhanced activity toward ORR as compared with mono-doped counterparts, and excellent durability in contrast to the conventional Pt/C electrocatalyst in both alkaline and acidic media. A high content of graphitic-N and pyridinic-N is necessary for ORR electrocatalysis in the graphene-like carbon nanosheets, but an appropriate amount of S atoms further contributes to the improvement of ORR activity. Superior ORR performance from the as-prepared S, N dual-doped graphene-like carbon nanosheets implies great promises in practical applications in energy devices.
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Jiajie
authors.initials: J
authors.lastname: Li
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Yumin
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Xinghong
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Jinzhen
authors.initials: J
authors.lastname: Huang
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Jiecai
authors.initials: J
authors.lastname: Han
authors.affiliation: Liaoning Key Materials Laboratory for Railway, School of Materials Science and Engineering, Dalian Jiaotong University , Dalian 116028, China.
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Xijiang
authors.initials: X
authors.lastname: Han
authors.affiliation: School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Ping
authors.identifier: http://orcid.org/0000-0002-1516-4986
authors.initials: P
authors.lastname: Xu
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China.|Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150080, China.|Department of Physics, Harbin Institute of Technology , Harbin 150080, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Song
keywords: S, N-doped carbon; electrocatalysis; graphene-like; metal-free; oxygen reduction reaction