Gas sensors based on one dimensional nanostructured metal-oxides: a review

Arafat, M.M. and Dinan, B. and Akbar, S.A. and Haseeb, A.S. Md. Abdul (2012) Gas sensors based on one dimensional nanostructured metal-oxides: a review. Sensors, 12. pp. 7207-7258. ISSN 1424-8220

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Abstract

Recently one dimensional (1-D) nanostructured metal-oxides have attracted much attention because of their potential applications in gas sensors. 1-D nanostructured metal-oxides provide high surface to volume ratio, while maintaining good chemical and thermal stabilities with minimal power consumption and low weight. In recent years, various processing routes have been developed for the synthesis of 1-D nanostructured metal-oxides such as hydrothermal, ultrasonic irradiation, electrospinning, anodization, sol-gel, molten-salt, carbothermal reduction, solid-state chemical reaction, thermal evaporation, vapor-phase transport, aerosol, RF sputtering, molecular beam epitaxy, chemical vapor deposition, gas-phase assisted nanocarving, UV lithography and dry plasma etching. A variety of sensor fabrication processing routes have also been developed. Depending on the materials, morphology and fabrication process the performance of the sensor towards a specific gas shows a varying degree of success. This article reviews and evaluates the performance of 1-D nanostructured metal-oxide gas sensors based on ZnO, SnO2, TiO2, In2O3, WOx, AgVO3, CdO, MoO3, CuO, TeO2 and Fe2O3. Advantages and disadvantages of each sensor are summarized, along with the associated sensing mechanism. Finally, the article concludes with some future directions of research.

Item Type: Article
Additional Information: M. M. Arafat and A. S. M. A. Haseeb are from Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; E-Mail: arafat_mahmood@siswa.um.edu.my B. Dinan and Sheikh A. Akbar are from Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA; E-Mails: dinan@matsceng.ohio-state.edu (B.D.); akbar.1@osu.edu (S.A.A.) * Author to whom correspondence should be addressed; E-Mail: haseeb@um.edu.my; Tel.: +603-7967-4598; Fax: +603-7967-4448.
Uncontrolled Keywords: Gas sensor; One dimensional nanostructures; Metal-oxides
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Norhamizah Tamizi
Date Deposited: 13 Mar 2014 04:05
Last Modified: 17 Oct 2018 00:52
URI: http://eprints.um.edu.my/id/eprint/9466

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