Gas sensing properties of tin dioxide coated onto multi-walled carbon nanotubes

被引：84

作者：

Liu, YL ^{[1
]}

Yang, HF ^{[1
]}

Yang, Y ^{[1
]}

Liu, ZM ^{[1
]}

Shen, GL ^{[1
]}

Yu, RQ ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemobiosensing & Chemometr, Changsha 410082, Peoples R China

来源：

THIN SOLID FILMS | 2006年 / 497卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

MWNTs; SnO2; nanoparticles; gas sensing response;

D O I：

10.1016/j.tsf.2005.11.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A compound material of multi-walled carbon nanotubes (MWNTs) coated with SnO2 was synthesized at ambient conditions. The Raman spectra, X-ray diffraction (XRD) and transmission electron microscopy (TEM) results confirmed that the existence of SnO2 nanoparticles were on the outside of the MWNTs. The gas sensing properties of the material were studied. It was found that the sensor exhibited nice sensing responses to liquefied petroleum gas (LPG) and ethanol gas (C2H5OH) and a fast response and recovery within seconds. Furthermore, the gas sensor responses increased linearly with the increment of the gas concentrations of LPG and ethanol. (c) 2005 Published by Elsevier B.V.

引用

页码：355 / 360

页数：6

共 36 条

[1] Work functions and surface functional groups of multiwall carbon nanotubes [J].