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Chemosensors 2017, 5(3), 21; doi:10.3390/chemosensors5030021

Thin 2D: The New Dimensionality in Gas Sensing

Department of Engineering, University of Messina, Contrada Di Dio, 98166 Messina, Italy
Received: 17 May 2017 / Revised: 20 June 2017 / Accepted: 27 June 2017 / Published: 18 July 2017
(This article belongs to the Special Issue Novel 2D-Inorganic Materials for Gas Sensing)
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Since the first report of graphene, thin two-dimensional (2D) nanomaterials with atomic or molecular thicknesses have attracted great research interest for gas sensing applications. This was due to the distinctive physical, chemical, and electronic properties related to their ultrathin thickness, which positively affect the gas sensing performances. This feature article discusses the latest developments in this field, focusing on the properties, preparation, and sensing applications of thin 2D inorganic nanomaterials such as single- or few-layer layered double hydroxides/transition metal oxides/transition metal dichalcogenides. Recent studies have shown that thin 2D inorganic nanomaterials could provide monitoring of harmful/toxic gases with high sensitivity and a low concentration detection limit by means of conductometric sensors operating at relatively low working temperatures. Promisingly, by using these thin 2D inorganic nanomaterials, it may open a simple way of improving the sensing capabilities of conductometric gas sensors. View Full-Text
Keywords: thin two-dimensional inorganic materials; layered double hydroxides; transition metal dichalcogenides; metal oxides; nanosheets; conductometric gas sensors thin two-dimensional inorganic materials; layered double hydroxides; transition metal dichalcogenides; metal oxides; nanosheets; conductometric gas sensors

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Neri, G. Thin 2D: The New Dimensionality in Gas Sensing. Chemosensors 2017, 5, 21.

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