期刊
CATALYSIS COMMUNICATIONS
卷 60, 期 -, 页码 37-41出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2014.11.012
关键词
Iron-nitrogen-doped carbon catalyst; Oxygen reduction reaction; Chemical bonding state; Active site
资金
- National Natural Science Foundation of China [51372095, 50525204, 50832001]
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.
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