Low-temperature gas and pressure sensor based on multi-wall carbon nanotubes decorated with Ti nanoparticles

被引：35

作者：

Gelamo, R. V. ^{[1
]}

Rouxinol, F. P. ^{[1
]}

Verissimo, C. ^{[1
]}

Vaz, A. R. ^{[1
]}

Bica de Moraes, M. A. ^{[2
]}

Moshkalev, S. A. ^{[1
]}

机构：

[1] Univ Campinas UNICAMP, Ctr Semicond Components, BR-13083870 Campinas, SP, Brazil

[2] Univ Estadual Campinas UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 482卷 / 4-6期

基金：

巴西圣保罗研究基金会;

关键词：

OXIDE; ARRAY;

D O I：

10.1016/j.cplett.2009.10.019

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：

Multi-wall carbon nanotubes decorated by Ti nanoparticles were used for gas (N-2, Ar, O-2) sensing at low temperatures. Chemiresistor sensor configurations with supported and suspended nanotubes were tested. Two gas sensing mechanisms (chemical and electrothermal) were demonstrated, with their relative contributions strongly depending on the sensor configuration. For suspended nanotubes, heating by Joule effect results in strong enhancement of chemical sensitivity to oxygen. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：302 / 306

页数：5

共 25 条

[1] Enhancement of CO detection in Al doped graphene [J].

Ao, Z. M. ;

Yang, J. ;

Li, S. ;

Jiang, Q. .

CHEMICAL PHYSICS LETTERS, 2008, 461 (4-6) :276-279

[2] Reversible sidewall functionalization of buckytubes [J].

Boul, PJ ;

Liu, J ;

Mickelson, ET ;

Huffman, CB ;

Ericson, LM ;

Chiang, IW ;

Smith, KA ;

Colbert, DT ;

Hauge, RH ;

Margrave, JL ;

Smalley, RE .

CHEMICAL PHYSICS LETTERS, 1999, 310 (3-4) :367-372

[3] Current induced light emission from a multiwall carbon nanotube [J].

Cai, XY ;

Akita, S ;

Nakayama, Y .

THIN SOLID FILMS, 2004, 464 :364-367

[4] Electrical detection of nitric oxide using single-walled carbon nanotube network devices [J].

Fu, Dongliang ;

Xu, Yanping ;

Li, Lain-Jong ;

Chen, Y. ;

Mhaisalkar, S. G. ;

Boey, F. Y. C. ;

Lin, Tsung-Wu ;

Moochhala, Shabbir .

CARBON, 2007, 45 (09) :1911-1914

[5]

GELAMO RV, UNPUB

[6] An electrothermal carbon nanotube gas sensor [J].

Kawano, Takeshi ;

Chiamori, Heather C. ;

Suter, Marcel ;

Zhou, Qin ;

Sosnowchik, Brian D. ;

Lin, Liwei .

NANO LETTERS, 2007, 7 (12) :3686-3690

[7] The effect of metal cluster coatings on carbon nanotubes [J].

Kim, BK ;

Park, N ;

Na, PS ;

So, HM ;

Kim, JJ ;

Kim, H ;

Kong, KJ ;

Chang, H ;

Ryu, BH ;

Choi, YM ;

Lee, JO .

NANOTECHNOLOGY, 2006, 17 (02) :496-500

[8] Chemical sensing and catalysis by one-dimensional metal-oxide nanostructures [J].

Kolmakov, A ;

Moskovits, M .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2004, 34 :151-180

[9]

Kong J, 2001, ADV MATER, V13, P1384, DOI 10.1002/1521-4095(200109)13:18<1384::AID-ADMA1384>3.0.CO

[10]

2-8

← 1 2 3 →