Unravelling the Structure of Electrocatalytically Active Fe-N Complexes in Carbon for the Oxygen Reduction Reaction

	Unravelling the Structure of Electrocatalytically Active Fe-N Complexes in Carbon for the Oxygen Reduction Reaction
	Zhu, Yansong 1,2; Zhang, Bingsen 1; Liu, Xin 3; Wang, Da-Wei 4; Su, Dang Sheng 1
刊名	angewandte chemie-international edition
	2014-09-26
卷号	53 期号:40 页码:10673-10677
关键词	active sites electrocatalysts iron Mossbauer spectroscopy oxygen reduction reaction
英文摘要	non-precious fe/n co-modified carbon electrocatalysts have attracted great attention due to their high activity and stability in oxygen reduction reaction (orr). compared to iron-free n-doped carbon electrocatalysts, fe/n-modified electrocatalysts show four-electron selectivity with better activity in acid electrolytes. this is believed relevant to the unique fe-n complexes, however, the fe-n structure remains unknown. we used o,m,p-phenylenediamine as nitrogen precursors to tailor the fe-n structures in heterogeneous electrocatalysts which contain fes and fe3c phases. the electrocatalysts have been operated for 5000 cycles with a small 39 mv shift in half-wave potential. by combining advanced electron microscopy and mossbauer spectroscopy, we have identified the electrocatalytically active fe-n-6 complexes (fen6, [feiii(porphyrin)(pyridine)(2)]). we expect the understanding of the fen6 structure will pave the way towards new advanced fe-n based electrocatalysts.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	pem fuel-cells ; nonprecious-metal-catalysts ; electrochemical reduction ; cathode catalysts ; black supports ; iron ; performance ; kinetics ; cobalt ; orr
收录类别	SCI
语种	英语
WOS记录号	WOS:000342761500018
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/145555]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Anshan Normal Univ, Sch Chem & Life Sci, Anshan 114005, Liaoning, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China 4.UNSW Australia, Sch Chem Engn, Unsw Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	Zhu, Yansong,Zhang, Bingsen,Liu, Xin,et al. Unravelling the Structure of Electrocatalytically Active Fe-N Complexes in Carbon for the Oxygen Reduction Reaction[J]. angewandte chemie-international edition,2014,53(40):10673-10677.
APA	Zhu, Yansong,Zhang, Bingsen,Liu, Xin,Wang, Da-Wei,&Su, Dang Sheng.(2014).Unravelling the Structure of Electrocatalytically Active Fe-N Complexes in Carbon for the Oxygen Reduction Reaction.angewandte chemie-international edition,53(40),10673-10677.
MLA	Zhu, Yansong,et al."Unravelling the Structure of Electrocatalytically Active Fe-N Complexes in Carbon for the Oxygen Reduction Reaction".angewandte chemie-international edition 53.40(2014):10673-10677.