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Tailored nitrogen dioxide sensing response of three-dimensional graphene foam

Jayanthi, Swetha and Mukherjee, Anwesha and Chatterjee, Kaushik and Sood, AK and Misra, Abha (2016) Tailored nitrogen dioxide sensing response of three-dimensional graphene foam. In: SENSORS AND ACTUATORS B-CHEMICAL, 222 . pp. 21-27.

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Official URL: http://dx.doi.org/10.1016/j.snb.2015.08.041

Abstract

Ultralight and macroporous three-dimensional reduced graphene oxide (rGO) foams are prepared by lyophilization (freeze-drying) technique to avoid a conventional template method. This method allows tailoring the porosity of the foams by varying the weight percentages of graphene oxide dispersions in water. Three different rGO foams of 0.2, 0.5 and 1.0 wt% are used for NO2 sensing. Sensing response from the tailored structure of rGO is found to be directly related to the density. A maximum of 20% sensing response is observed for a higher porosity of the structure, better than the known results so far on graphene foams in the literature. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Keywords: Graphene foam; Lyophilization; Nitrogen dioxide
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 24 Nov 2015 06:03
Last Modified: 24 Nov 2015 06:03
URI: http://eprints.iisc.ac.in/id/eprint/52827

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