Nitrogen-doped ultrathin carbon nanofibers derived from electrospinning: Large-scale production, unique structure, and application as electrocatalysts for oxygen reduction
文献类型：期刊论文
| 作者 | Qiu, YJ ; Yu, J ; Shi, TN ; Zhou, XS ; Bai, XD ; Huang, JY |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2011 |
| 卷号 | 196期号:23页码:9862 |
| 关键词 | FUEL-CELLS CATALYSTS RAMAN GRAPHITE FIBERS SUPERCAPACITORS ARRAYS |
| ISSN号 | 0378-7753 |
| 通讯作者 | Qiu, YJ (reprint author), Harbin Inst Technol, Dept Mat Sci & Engn, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China. |
| 中文摘要 | Ultrathin nitrogen-doped carbon nanofibers (NCNFs) with unique structure are prepared by electrospinning. The ultrathin NCNFs are produced in the form of large-area membranes by carbonizing electrospun polyacrylonitrile (PAN) nanofibers in NH(3). The diameter of the NCNFs can be effectively reduced due to the etching reactivity of NH(3) with carbon and the average diameter down to 20 nm is obtained. The NCNFs carbonized in NH(3) possess unique structure that many graphitic layers protrude from the fiber surface with their edges exposed. The nitrogen doped in the NCNFs is mainly from that contained in the PAN molecules and partially from ambient NH(3). The membranes of the ultrathin NCNFs exhibit high electrocatalytic activity, long-term operation stability, and excellent tolerance to crossover effect during oxygen reduction reaction in fuel cells. The high electrocatalytic activity of the ultrathin NCNFs may be mainly ascribed to their small diameter and exposed graphitic layer edges apart from N doping. Due to the simplicity in production, low cost, absence of metal residue, and the material form of freestanding membrane with large area the ultrathin NCNFs derived from electrospinning hold high promise for the practical application of fuel cells. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | NSFC [50972033, 50572019]; New Century Excellent Talents in University [NCET060343]; Shenzhen government; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49911]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Qiu, YJ,Yu, J,Shi, TN,et al. Nitrogen-doped ultrathin carbon nanofibers derived from electrospinning: Large-scale production, unique structure, and application as electrocatalysts for oxygen reduction[J]. JOURNAL OF POWER SOURCES,2011,196(23):9862. |
| APA | Qiu, YJ,Yu, J,Shi, TN,Zhou, XS,Bai, XD,&Huang, JY.(2011).Nitrogen-doped ultrathin carbon nanofibers derived from electrospinning: Large-scale production, unique structure, and application as electrocatalysts for oxygen reduction.JOURNAL OF POWER SOURCES,196(23),9862. |
| MLA | Qiu, YJ,et al."Nitrogen-doped ultrathin carbon nanofibers derived from electrospinning: Large-scale production, unique structure, and application as electrocatalysts for oxygen reduction".JOURNAL OF POWER SOURCES 196.23(2011):9862. |
入库方式： OAI收割
来源：物理研究所
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