Covalent functionalization of single-walled carbon nanotubes with anthracene by green chemical approach and their temperature dependent magnetic and electrical conductivity studies

被引：16

作者：

Hariharasubramanian, A. ^{[1
]}

Ravichandran, Y. Dominic ^{[1
]}

Rajesh, R. ^{[1
]}

Kumar, K. Rajendra ^{[1
]}

Kanagaraj, M. ^{[2
]}

Arumugam, S. ^{[2
]}

机构：

[1] VIT Univ, Sch Adv Sci, Div Organ Chem, Vellore 632014, Tamil Nadu, India

[2] Bharathidasan Univ, Sch Phys, Ctr High Pressure Res, Thiruchirapalli 620024, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 143卷 / 02期

关键词：

Magnetic materials; Electrical conductivity; Semiconductors; Hysteresis; Powder diffraction; FIELD-EFFECT TRANSISTORS; ELECTRONIC-PROPERTIES; ROUTE;

D O I：

10.1016/j.matchemphys.2013.10.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single-walled carbon nanotubes (SWCNTs) were covalently functionalized with anthracene in molten urea by a green chemical approach. The anthracene functionalized single-walled carbon nanotubes (Ant-f-SWCNTs) were examined along with SWCNTs, using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, powder X-Ray diffraction (XRD), and scanning, and transmission electron microscopy. The observations revealed the functionalization of SWCNTs by anthracene. The temperature dependent magnetization (300-5 K) and electrical resistivity were also measured for both SWCNTs and Ant-f-SWCNTs. The electrical resistivity of Ant-f-SWCNTs at 300 K was found to be 1.27 K Omega m, which is much lower than 388.55 K Omega m for pristine. This indicated a 300 fold increase in conductivity at room temperature for Ant-f-SWCNTs when compared to SWCNTs. The temperature dependence of the conductivity provided an indication of the semiconducting behaviour. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：838 / 844

页数：7

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