Singh, Sujatha and Kaur, Harjeet and Singh, V. N. and Jain, Kiran and Senguttuvan, T. D. (2012) Highly sensitive and pulse-like response toward ethanol of Nb doped TiO2 nanorods based gas sensors. Sensors and Actuators B: Chemical, 171. pp. 899-906. ISSN 0925-4005

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Abstract

Highly crystalline TiO2 and 3 wt% Nb-doped TiO2 nanorods were synthesized by a low-temperature surfactant directed hydrolysis method followed by calcination at 600-900 degrees C. The microstructure and the chemical composition of the thick films were characterized using XRD, SEM, EDX, TEM, XPS, and FUR. The sensing behavior of TiO2 thick films toward reducing gases (H-2, ethanol and LPG) in the temperature range 350-550 degrees C was studied. Niobium doping retards the anatase to rutile transformation. It was observed that doped TiO2 thick films have an enhanced sensor response compared to the undoped ones. The increased sensor response may be because of presence of anatase phase and the smaller dimension of the nanorods.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Chemistry > Analytical Chemistry Electrochemistry Instruments/ Instrumentation
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	12 Mar 2020 11:21
Last Modified:	12 Mar 2020 11:21
URI:	http://npl.csircentral.net/id/eprint/3544

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