Catalytic activities enhanced by abundant structural defects and balanced N distribution of N-doped graphene in oxygen reduction reaction

被引：58
|
作者：
Bai, Xiaogong [1 ]
Shi, Yantao [1 ]
Guo, Jiahao [1 ]
Gao, Liguo [2 ]
Wang, Kai [1 ]
Du, Yi [1 ]
Ma, Tingli [2 ,3 ]
机构：
[1] Dalian Univ Technol, Sch Chem, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, Sch Petr & Chem Engn, Panjin 124221, Peoples R China
[3] Kyushu Inst Technol, Grad Sch Life Sci & Syst Engn, Kitakyushu, Fukuoka 8080196, Japan
来源：
JOURNAL OF POWER SOURCES | 2016年 / 306卷
基金：
中国国家自然科学基金; 对外科技合作项目（国际科技项目）;
关键词：
N-doping graphene; Oxygen reduction reaction; N-distribution; Structural defects; HIGH ELECTROCATALYTIC ACTIVITY; METAL-FREE CATALYST; ONE-POT SYNTHESIS; NITROGEN; METHANOL; ALKALINE;
D O I：
10.1016/j.jpowsour.2015.10.081
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：
N-doped graphene (NG) is a promising candidate for oxygen reduction reaction (ORR) in the cathode of fuel cells. However, the catalytic activity of NG is lower than that of commercial Pt/C in alkaline and acidic media. In this study, NG samples were obtained using urea as N source. The structural defects and N distribution in the samples were adjusted by regulating the pyrolysis temperature. The new NG type exhibited remarkable catalytic activities for ORR in both alkaline and acidic media. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：85 / 91
页数：7
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