Synthesis of Fe/Fe3C nanoparticles encapsulated in nitrogen-doped carbon with single-source molecular precursor for the oxygen reduction reaction

	Synthesis of Fe/Fe3C nanoparticles encapsulated in nitrogen-doped carbon with single-source molecular precursor for the oxygen reduction reaction
	Wang, Jing 1,2; Wang, Guoxiong 1; Miao, Shu 3; Jiang, Xiaole 1,2; Li, Jiayuan 1,2; Bao, Xinhe 1,3
刊名	carbon
	2014-08-01
卷号	75 页码:381-389
英文摘要	ammonium ferric citrate (afc) was used as a single-source molecular precursor to prepare fe/fe3c nanoparticles encapsulated in nitrogen-doped carbon by pyrolysis in ar atmosphere followed by acid-leaching. comparative studies, using citric acid and ferric citrate as the precursors, indicated that the ammonia and ferric ion in afc and the pyrolysis temperature affected the composition of iron species and the properties of carbon in afc-derived materials. above the pyrolysis temperature of 600 degrees c, the iron species were fe/fe3c, and the carbon had a hollow graphitic nanoshell structure in afc-derived materials. the specific surface area and content of nitrogen element decreased with increasing pyrolysis temperature. the afc-derived material pyrolyzed at 600 c had the optimal graphitization degree, specific surface area (489 m(2) g(-1)) and content of nitrogen (1.8 wt.%), thus resulted in the greatest activity for oxygen reduction reaction among the afc-derived materials pyrolyzed at different temperatures. the afc-derived material pyrolyzed at 600 degrees c exhibited improved methanol-resistance ability compared with pt/c catalyst. (c) 2014 elsevier ltd. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; materials science
关键词[WOS]	electrolyte fuel-cells ; microwave irradiation ; anode catalyst ; iron ; performance ; metal ; electrocatalysts ; acid ; nanostructures ; nanocomposites
收录类别	SCI
语种	英语
WOS记录号	WOS:000336877600040
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/145769]
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, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jing,Wang, Guoxiong,Miao, Shu,et al. Synthesis of Fe/Fe3C nanoparticles encapsulated in nitrogen-doped carbon with single-source molecular precursor for the oxygen reduction reaction[J]. carbon,2014,75:381-389.
APA	Wang, Jing,Wang, Guoxiong,Miao, Shu,Jiang, Xiaole,Li, Jiayuan,&Bao, Xinhe.(2014).Synthesis of Fe/Fe3C nanoparticles encapsulated in nitrogen-doped carbon with single-source molecular precursor for the oxygen reduction reaction.carbon,75,381-389.
MLA	Wang, Jing,et al."Synthesis of Fe/Fe3C nanoparticles encapsulated in nitrogen-doped carbon with single-source molecular precursor for the oxygen reduction reaction".carbon 75(2014):381-389.