Sulfur-doped porous graphene frameworks as an efficient metal-free electrocatalyst for oxygen reduction reaction

被引：14

作者：

Wang, Chunxia ^{[1
,2
]}

Yang, Fan ^{[1
]}

Xu, Chong ^{[1
]}

Cao, Yan ^{[1
]}

Zhong, Huangliang ^{[1
,2
]}

Li, Yongfeng ^{[1
]}

机构：

[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

[2] China Univ Petr, Inst New Energy, Beijing 102249, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 214卷

关键词：

Carbon materials; Porous materials; Electrical properties; HIGH-SURFACE-AREA; NANOMESH GRAPHENE; NITROGEN; CARBON; CATALYST; PERFORMANCE; NANOTUBES; CELLS; OXIDE;

D O I：

10.1016/j.matlet.2017.11.120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We developed sulfur-doped porous graphene frameworks as a highly efficient metal-free electrocatalyst for oxygen reduction reaction (ORR) which was prepared through MgO template directed approach by in situ sulfur doping based on the pyrolysis of p-methylbenzenesulfonic acid. The as-obtained electrocatalyst features distinctive porous graphene frameworks and uniform distribution of sulfur dopants with highly active sites. When employed for ORR, such catalyst shows pronounced catalytic activity, improved stability and better resistance toward methanol crossover than those of the commercial Pt/C, and a nearly four-electron transfer number in alkaline media. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：209 / 212

页数：4

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