文献类型：期刊文献

英文题名：Nitrogen-doped carbon nanotubes synthesized with carbon nanotubes as catalyst

作者：Wang, Can[1];Huang, Zhenghong[2];Zhan, Liang[1];Wang, Yanli[1];Qiao, Wenming[1];Liang, Xiaoyi[1];Ling, Licheng[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Key Lab Specially Funct Polymers & Related Techno, Minist Educ, Shanghai 200237, Peoples R China;[2]Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

年份：2011

卷号：20

期号：10

起止页码：1353

外文期刊名：DIAMOND AND RELATED MATERIALS

收录：;EI(收录号：20114714548755);WOS:【SCI-EXPANDED(收录号:WOS:000298512800010)】；

基金：This work made use of the resources of the Beijing National Center for Electron Microscopy. We thank the National Natural Science Foundation of China (NO. 50730003, 50672025, 20806024 and 51002051), the Research Fund of China 863 program (No. 2008AA062302) and Shanghai Leading Academic Discipline Project (B502) for financial support.

语种：英文

外文关键词：Carbon nanotubes; Nitrogen-doped carbon nanotubes; Catalyst

摘要：Nitrogen-doped carbon (CN(x)) nanotubes were synthesized with carbon nanotubes (CNTs) as catalyst by detonation-assisted chemical vapor deposition. CN(x) nanotubes exhibited compartmentalized bamboo-like structure. Electron energy loss spectroscopy and elemental mapping studies indicated that the synthesized tubes contained high concentration of nitrogen (ca. 17.3 at.%). inhomogeneously distributed with an enrichment of nitrogen within the compartments. X-ray photoelectron spectroscopy analysis revealed the presence of pyridine-like N and graphitic N incorporated into the graphitic network. The catalytic activity of CNTs for CN(x) nanotube growth was ascribed to the nanocurvature and opening edges of CNT tips, which adsorbed C(n)/CN species and assembled them into CN(x) nanotubes. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.