Resistive Gas Sensors Based on MWCNTs-PVP Composite Films

Abstract:

In this paper, multiple-walled carbon nanotubes (MWCNTs) monolayer film and MWCNTs-polyvinylpyrrolidone (PVP) composite films were fabricated on interdigitated electrodes (IDEs) by airbrush technology, respectively. Response performance of all the sensors to various concentrations of vapors including methanol, ethanol, acetone, tetrahydrofuran, water and 1,2-dichloroethane were investigated. The results showed that a larger sensing response was obtained for the composite films compared with the MWCNTs monolayer film. Moreover, the MWCNTs-PVP composite films had a good selectivity for 1,2-dichloroethane vapor.

• Periodical: Applied Mechanics and Materials (Volumes 651-653)
• Pages: 84-87
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.651-653.84
• Online since: September 2014
• Authors: Huan He*, Guang Zhong Xie, Yong Zhou, Hui Ling Tai
• Keywords: Gas Sensor, MWCNTs, Organic Vapor, PVP

References

[1] Kai Wang and Jiyong Huang: Polyaniline nanowire arrays for high performance supercapacitors, J Phys. Chem. C 114 (2010) 8062-8067.

DOI: 10.1021/jp9113255

[2] H. Yamaura, T. Jinkawa, J. Tamaki, K. Moriya, N. Miura and N. Yamazoe: Indium oxide-based gas sensors for selective detection of CO, Sens. Actuators B 36 (1996) 325-332.

DOI: 10.1016/s0925-4005(97)80090-1

[3] J. Kaur, S.C. Roy, M.C. Bhatnagar: Highly sensitive SnO2 thin film NO2 gas sensor operating at low-temperature, Sens. Actuators B 123 (2007) 1090-1095.

DOI: 10.1016/j.snb.2006.11.031

[4] G. Xie, J. Yu, X. Chen, Y. Jiang: Gas sensing characteristics of WO3 vacuum deposited thin films, Sens. Actuators B 123 (2007) 909-914.

DOI: 10.1016/j.snb.2006.10.059

[5] A.Macagnano: Nanofibrous PANI-based conductive polymers for trace gas analysis, Thin Solid Film 520 (2011) 978-985.

DOI: 10.1016/j.tsf.2011.04.175

[6] Z. Spitalskya, D. Tasisb, K. Papagelisb, C. Galiotis: Carbon nanotube-polymer composites: Chemistry, processing, mechanical and electrical properties, Prog. Polym. Sci. 35 (2010) 357-40.

[7] L. Niu, Y. Luo, Z. Li, A highly selective chemical gas sensor based on functionalization of multi-walled carbon nanotubes with poly(ethylene/glycol), Sens. Actuators B 126 (2007) 361-367.

DOI: 10.1016/j.snb.2007.03.018

[8] J. Zou, L. Liu, H. Chen, S. Khondaker, R. McCullough, Q. Huo, and L. Zhai: Dispersion of pristine carbon nanotubes using conjugated block copolymers, Adv. Mater. 20 (2008) 2055-2060.

DOI: 10.1002/adma.200701995

[9] W. Zhou, Y. Wu, F. Wei, G. Luo, W. Qian: Elastic deformation of multiwalled carbon nanotubes in electrospun MWCNTs-PEO and MWCNTs-PVA nanofibers, Polymer 46 (2005) 12689-12695.

DOI: 10.1016/j.polymer.2005.10.114

[10] R. Pati, Y. Zhang, S.K. Nayak: Effect of H2O adsorption on electron transport in a carbon nanotube, Appl. Phys. Lett, 81 (2002) 2638-2640.

DOI: 10.1063/1.1510969

[11] G.S. Cheng, J.W. Hu: Filling polymer based conductive gas sensing composite materials, Appl. Chem. 21 (2004) 325-331.

[12] P. Burg, P. Fydrych, J. Bimer: Comparison of three active carbons using LSER modeling: prediction of their selectivity towards pairs of volatile organic compounds (VOCs), Carbon 40 (2002) 73-80.

DOI: 10.1016/s0008-6223(01)00076-8

[13] D. Karst, Y. Yang: Using the solubility parameter to explain disperse dye sorption on polylactide, J. Appl. Polym. Sci. 96 (2005) 416-422.

DOI: 10.1002/app.21456