Paper Title:

Sensing Element Made of Multi-Wall Carbon Nanotube Network for Organic Vapor Detection

Periodical Key Engineering Materials (Volume 495)
Main Theme Materials and Applications for Sensors and Transducers
Edited by E. Hristoforou and D.S. Vlachos
Pages 9-12
DOI 10.4028/www.scientific.net/KEM.495.9
Citation Robert Olejnik et al., 2011, Key Engineering Materials, 495, 9
Online since November, 2011
Authors Robert Olejnik, Petr Slobodian, Petr Saha
Keywords Buckypaper, Carbon Nanotube Network, Electrical Resistance, Sensor
Price US$ 28,-
Article Preview
View full size
Abstract

Multiwall carbon nanotubes (MWCNT) network “Buckypaper” was made by the vacuum filtration method of MWCNT aqueous suspension. The sensitivity of multi-wall carbon nanotube (MWCNT) networks of randomly entangled pure nanotubes to various organic solvent vapors (tetrahydrofuran, methyl ethyl ketone, and ethanol) has been investigated by resistance measurements. The results demonstrate that the network electrical resistance increases when exposed to organic solvent vapors, and a reversible reaction is observed when the sample is removed from the vapors. The investigated MWCNT networks could be potentially used as sensing elements for sensitive and selective organic vapor detection.