Template-free synthesis of hollow nitrogen-doped carbon as efficient electrocatalysts for oxygen reduction reaction

被引：52
作者：
Wu, Rui [1 ]
Chen, Siguo [1 ]
Zhang, Yuanliang [1 ]
Wang, Yao [1 ]
Ding, Wei [1 ]
Li, Li [1 ]
Qi, Xueqiang [1 ]
Shen, Xiu [1 ]
Wei, Zidong [1 ]
机构：
[1] Chongqing Univ, Chongqing Key Lab Chem Proc Clean Energy & Resour, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2015年 / 274卷
关键词：
Hollow nitrogen-doped carbon; Oxygen reduction reaction; Electrocatalyst; Polyaniline; Fuel cells; METAL-FREE ELECTROCATALYSTS; POLYANILINE; GRAPHENE; CATALYST; PERFORMANCE; IRON; NANOSHEETS; STABILITY; NANOTUBES; SPHERES;
D O I：
10.1016/j.jpowsour.2014.10.118
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, we report a template-free method to fabricate hollow nitrogen-doped carbon (HNC) by pyrolysis of hollow polyaniline microspheres, which were synthesized by suspension polymerization method. The entire synthesis is simple, environmentally benign, and economic. The oxygen reduction reaction (ORR) activity of the as-prepared HNC catalyst is close to that of the commercial Pt/C catalyst in alkaline media with four electron pathway. Moreover, the HNC shows much better fuel crossover resistance and long-term durability than the commercial Pt/C in alkaline medium. All these features make HNC a potentially promising and suitable substitute for the expensive noble metal catalysts in the next generation alkaline fuel cells. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：645 / 650
页数：6
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