Alcohol Sensing Properties of SnO2/CNT Nanocomposites Synthesized by Microwave-Assisted Process

Nalita Sawangjit; Wicharn Techitdheera; Wisanu Pecharapa

doi:10.4028/www.scientific.net/KEM.675-676.85

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 675-676Alcohol Sensing Properties of SnO2/CNT...

Alcohol Sensing Properties of SnO₂/CNT Nanocomposites Synthesized by Microwave-Assisted Process

Abstract:

SnO₂/CNT nanocomposites were synthesized via microwave-assisted process using SnCl₄·5H₂O as a starting precursor and UV-treated multi-wall carbon nanotubes (MWCNTs) as scaffolds. The concentration of SnCl₄ was varied in the range of 0.01-0.05 M. Effect of precursor concentration on their physical properties and micro structural morphology were investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM). XRD results indicate that the as-synthesized composites are the mixture of two separated phases including SnO₂ and MWCNT. SEM images indicate that the surfaces of MWCNT are thoroughly covered with SnO₂ nanoparticles. Comparative gas sensing result reveals that the prepared hybrid SnO₂/MWCNT composites exhibit much higher sensing sensitivity and recovery property in detecting alcohol gas at room temperature than the bare SnO₂.

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Periodical:

Key Engineering Materials (Volumes 675-676)

Pages:

85-88

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.675-676.85

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Online since:

January 2016

Authors:

Nalita Sawangjit, Wicharn Techitdheera, Wisanu Pecharapa*

Keywords:

Carbon Nanotubes, Gas Sensing, Microwave-Assisted Method, Nanocomposite, SnO₂

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References

[1] L. Hao, H. Liu, X. Li, W. Shen, Properties of SnO2 based gas-sensing thin films prepared by ink-jet printing, Sensors and Actuators B. 166– 167, (2012) 110– 116.

DOI: 10.1016/j.snb.2012.01.019

Google Scholar

[2] A. Srivastava, S.T. Lakshmikumar, A.K. Srivastava, Rashmib, Kiran Jain, Gas sensing properties of nanocrystalline SnO 2 prepared in solvent media using a microwave assisted technique, Sensors and Actuators B . 126 (2007) 583–587.

DOI: 10.1016/j.snb.2007.04.006

Google Scholar

[3] S. Zaman, J. Xin, F.K. Butt, Wet chemistry synthesis of SnO2/MWCNTs nanocomposites and their tuning energy bandgap properties, Materials Letters119 (2014) 111–114.

DOI: 10.1016/j.matlet.2013.12.064

Google Scholar

[4] D. Wu, C. Han, Shi-Yu Wang, N. Li. Wua, I.A. Rusakova, Microwave-assisted solution synthesis of SnO nanocrystallites, Materials Letters. 53 (2002) 155–159.

DOI: 10.1016/s0167-577x(01)00468-2

Google Scholar

[5] J. Gong, J. Sun, Q. Chen, Micromachined sol–gel carbon nanotube/SnO2 nanocomposite hydrogen sensor, Sensors and Actuators B. 130 (2008) 829–835.

DOI: 10.1016/j.snb.2007.10.051

Google Scholar

[6] O.K. Varghese P.D. Kichambre, D. Gong, K.G. Ong, E.C. Dickey. C.A. Grimes, Gas sensing characteristics of multi-wall carbon nanotubes, Sensors and Actuators B. 81 (2001) 32–41.

DOI: 10.1016/s0925-4005(01)00923-6

Google Scholar

[7] A. Modi, N. Koratkar, E. Lass, B. Wei, Miniaturized gas ionization sensors using carbon nanotubes, Nature 424 (2003) 171–173.

DOI: 10.1038/nature01777

Google Scholar

[8] R. Ionescu, E.H. Espinosa, E. Sotter, E. Llobet, X. Vilanova, X. Correig, A. Felten, C. Bittencourt, G. Van Lier, J.C. Charlier, J.J. Pireaux, Oxygen functionalisation of MWNTand their use as gas sensitive thick-film layers, Sens. Actuator B. 113 (2006).

DOI: 10.1016/j.snb.2005.02.020

Google Scholar

[9] N. Van Hieu, L. Thi Bich Thuy, N. Duc Chien, Highly sensitive thin film NH3 gas sensor operating at room temperature based on SnO2/MWCNTs composite, Materials Chemistry and Physics. 147 (2014) 79-85.

DOI: 10.1016/j.snb.2007.09.088

Google Scholar

[10] S. Majumdar, P. Nag, P.S. Devi, Enhanced performance of CNT/SnO2 thick film gas sensors towards hydrogen, Materials Chemistry and Physics. 147 (2014) 79-85.

DOI: 10.1016/j.matchemphys.2014.04.009

Google Scholar