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Approaches to Enhancing Gas Sensing Properties: A Review

College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
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Sensors 2019, 19(7), 1495; https://doi.org/10.3390/s19071495
Received: 19 February 2019 / Revised: 13 March 2019 / Accepted: 22 March 2019 / Published: 27 March 2019
(This article belongs to the Special Issue Recent Advances in Gas Nanosensors)
A gas nanosensor is an instrument that converts the information of an unknown gas (species, concentration, etc.) into other signals (for example, an electrical signal) according to certain principles, combining detection principles, material science, and processing technology. As an effective application for detecting a large number of dangerous gases, gas nanosensors have attracted extensive interest. However, their development and application are restricted because of issues such as a low response, poor selectivity, and high operation temperature, etc. To tackle these issues, various measures have been studied and will be introduced in this review, mainly including controlling the nanostructure, doping with 2D nanomaterials, decorating with noble metal nanoparticles, and forming the heterojunction. In every section, recent advances and typical research, as well mechanisms, will also be demonstrated. View Full-Text
Keywords: gas nanosensors; nanomaterials; sensing properties; mechanism gas nanosensors; nanomaterials; sensing properties; mechanism
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Yuan, Z.; Li, R.; Meng, F.; Zhang, J.; Zuo, K.; Han, E. Approaches to Enhancing Gas Sensing Properties: A Review. Sensors 2019, 19, 1495.

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