Oxygen functionalisation of MWNT and their use as gas sensitive thick-film layers

被引：142

作者：

Ionescu, R

Espinosa, EH

Sotter, E

Llobet, E

Vilanova, X

Correig, X

Felten, A

Bittencourt, C

Van Lier, G

Charlier, JC

Pireaux, JJ

机构：

[1] Univ Rovira & Virgili, Dept Engn Elect, Tarragona 43007, Spain

[2] Fac Univ Notre Dame Paix, Lab Interdisciplinaire Spectroscopie Elect, B-5000 Namur, Belgium

[3] Catholic Univ Louvain, Unite Phys Chim & Phys Mat, PCPM, B-1348 Louvain, Belgium

[4] Catholic Univ Louvain, Res Ctr Micro & Nanoscop Mat & Eect Devices, CERMIN, B-1348 Louvain, Belgium

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 113卷 / 01期

关键词：

MWNT functionalisation; plasma treatment; gas sensors; drop coating; room temperature sensing; ab initio theoretical calculations;

D O I：

10.1016/j.snb.2005.02.020

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Multi-wall carbon nanotubes (MWNT) were functionalised in an oxygen-based atmosphere by an inductively coupled RF-plasma at 13.56 MHz. X-ray photoelectron spectroscopy analysis showed that the chemical composition of the nanotube surface depends on the plasma conditions used. The MWNT were then deposited onto microhotplate gas sensor substrates by the drop coating method, A well-adhered thick-film of carbon nanotubes mesh (similar to 17 mu m) was obtained after annealing in air. The influence of the different plasma conditions on the responsiveness of gas sensors fabricated with the functionalised MWNT was studied, The gas sensing properties were investigated both experimentally and theoretically for NO2, and NH3 at room temperature. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：36 / 46

页数：11

共 29 条

[1] Non-reactive rf treatment of multiwall carbon nanotube with inert argon plasma for enhanced field emission [J].