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Fe and N Co‐doped Carbons Derived from an Ionic Liquid as Active Bifunctional Oxygen Catalysts
Author(s) -
Xu Jun,
Shi Liang,
Liang Cong,
Wu Hui,
Lei Jiaheng,
Liu Dan,
Qu Deyu,
Xie Zhizhong,
Li Junsheng,
Tang Haolin
Publication year - 2017
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201700049
Subject(s) - catalysis , bifunctional , ionic liquid , electrocatalyst , heteroatom , oxygen , oxygen evolution , carbon fibers , inorganic chemistry , oxygen reduction reaction , doping , bifunctional catalyst , chemical engineering , chemistry , ionic bonding , materials science , oxygen reduction , electrode , electrochemistry , organic chemistry , ion , ring (chemistry) , optoelectronics , composite material , composite number , engineering
A high‐performance electrocatalyst that could effectively catalyze the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is required in important energy conversion devices such as metal–air batteries. Herein, we report the template‐free synthesis of a Fe and N co‐doped carbon catalyst, using a novel ionic liquid as the precursor. The Fe−N−C catalyst prepared at 800 °C exhibits comparable ORR performance but significantly improved OER activity compared to the commercial Pt/C catalyst as well as good stability. We demonstrate that the excellent performance of the catalyst is caused by its high heteroatom content, large surface area, and high degree of graphitization.