Synthesis and characterization of long strands of nitrogen-doped single-walled carbon nanotubes

被引：165

作者：

Villalpando-Paez, F.

Zamudio, A.

Elias, A. L.

Son, H.

Barros, E. B.

Chou, S. G.

Kim, Y. A.

Muramatsu, H.

Hayashi, T.

Kong, J.

Terrones, H.

Dresselhaus, G.

Endo, M.

Terrones, M. ^{[1
]}

Dresselhaus, M. S.

机构：

[1] IPICYT, Adv Mat Dept, San Luis Potosi 78216, Mexico

[2] MIT, Dept Mat Sci, Cambridge, MA 02139 USA

[3] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[4] MIT, Dept Phys, Cambridge, MA 02139 USA

[5] MIT, Dept Chem, Cambridge, MA 02139 USA

[6] Univ Fed Ceara, Dept Phys, BR-60455760 Fortaleza, Ceara, Brazil

[7] Shinshu Univ, Fac Engn, Nagano 3808553, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 424卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.cplett.2006.04.074

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We describe the synthesis of N-doped single-walled carbon nanotubes (N-SWNTs), that agglomerate in bundles and form long strands (< 10 cm), via the thermal decomposition of ferrocene/ethanol/benzylamine (FEB) solutions in an Ar atmosphere at 950 degrees C. The amount of benzylamine in the solution was varied from 0% to 26% by weight. Using Raman spectroscopy, we noted that as the N content is increased in the starting FEB solution, the growth of large diameter tubes is inhibited. We observed that the relative electrical conductivity of the strands increases with increasing nitrogen concentration. Thermogravimetric analysis (TGA) showed novel features for highly doped tubes that are related to chemical reactions on N sites. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：345 / 352

页数：8

共 30 条

[1] Experimental and theoretical studies on the structure of N-doped carbon nanotubes:: Possibility of intercalated molecular N2 [J].