The role of trace Fe in Fe-N-doped amorphous carbon with excellent electrocatalytic performance for oxygen reduction reaction

被引：11
|
作者：
Chen, Jingyan [1 ,2 ]
Cui, Xiaoqiang [1 ]
Zheng, Weitao [1 ]
机构：
[1] Jilin Univ, State Key Lab Superhard Mat, MOE, Dept Mat Sci,Key Lab Mobile Mat, Changchun 130012, Peoples R China
[2] Changchun Normal Univ, Dept Phys, Changchun 130032, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2015年 / 60卷
基金：
中国国家自然科学基金;
关键词：
Iron-nitrogen-doped carbon catalyst; Oxygen reduction reaction; Chemical bonding state; Active site; IRON-BASED CATALYSTS; FUEL-CELLS; ACTIVE-SITES; NITROGEN; GRAPHENE; BLACK; POLYANILINE; COMPLEXES; COMPOSITE; COBALT;
D O I：
10.1016/j.catcom.2014.11.012
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：
Synthesized by dripping iron acetate into the N-doped carbon film enriched with pyridinic N and followed by annealing at 800 degrees C, Fe-N-doped amorphous carbon (d(Fe-N)-C) with an Fe content of 02 at% showed excellent electrocatalytic activity, stability and methanol tolerance via a four-electron pathway for oxygen reduction reaction (ORR), which outperformed commercial Pt/C catalyst. More importantly, by tuning the Fe content and annealing temperature, the trace Fe in dF,N-C was supposed to form high active FeN4 sites with pyridinic N and played an important role in the excellent electrocatalytic performance for ORR. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：37 / 41
页数：5
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