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Proceedings Paper

Acetone vapor sensor made with cellulose-TiO2/MWCNTs hybrid nanocomposite
Author(s): Yi Chen; Hyejun Jung; Jaehwan Kim
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Paper Abstract

A Titanium dioxide (TiO2)/multi wall carbon nanotubes (MWCNTs) nanocomposite was synthesized by hydrothermal process. X-ray diffractometry, transmittance electron microscopy observation revealed this nanocompsite has high nanocrystral structure. After blending with regenerated cellulose, this hybrid nanocomposite was used as a room temperature ammonia (NH3) gas sensor. The TiO2/MWCNTs hybrid nanocomposite exhibited much higher response and faster response-recovery to NH3 gas of concentration ranging from 3000 ppm to 9000 ppm. The TiO2/MWCNTs hybrid nanocomposite can be a flexible room temperature gas sensor. The gas sensing mechanism of this hybrid nanocomposite is also discussed in this paper.

Paper Details

Date Published: 30 March 2012
PDF: 5 pages
Proc. SPIE 8344, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012, 83440B (30 March 2012); doi: 10.1117/12.915756
Show Author Affiliations
Yi Chen, Inha Univ. (Korea, Republic of)
Hyejun Jung, Inha Univ. (Korea, Republic of)
Jaehwan Kim, Inha Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8344:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012
Vijay K. Varadan, Editor(s)

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