Zinc Oxide Nanostructures for NO2 Gas–Sensor Applications: A Review
By R. Kumar, O. Aldossary, G. Kumar, A. Umar. Nano-Micro Letters, 2014
795 citations recorded by the source corpus.
Because of the interesting and multifunctional properties, recently, ZnO nanostructures are considered as excellent material for fabrication of highly sensitive and selective gas sensors. Thus, ZnO nanomaterials are widely used to fabricate efficient gas sensors for the detection of various hazardous and toxic gases. The presented review article is focusing on the recent developments of NO2 gas sensors based on ZnO nanomaterials. The review presents the general introduction of some metal oxide nanomaterials for gas sensing application and finally focusing on the structure of ZnO and its gas sensing mechanisms. Basic gas sensing characteristics such as gas response, response time, recovery time, selectivity, detection limit, stability and recyclability, etc are also discussed in this article. Further, the utilization of various ZnO nanomaterials such as nanorods, nanowires, nano-micro flowers, quantum dots, thin films and nanosheets, etc for the fabrication of NO2 gas sensors are also presented. Moreover, various factors such as NO2 concentrations, annealing temperature, ZnO morphologies and particle sizes, relative humidity, operating temperatures which are affecting the NO2 gas sensing properties are discussed in this review. Finally, the review article is concluded and future directions are presented.
Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/2d9589860bf8850277d67e4bde4cdd9d7a94a08b
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In Biomedical Engineering
In Electrical and Electronic Engineering
- Salvatore Gianluca Leonardi
- Zoran Stamenkovic
- Vladimir M. Milovanović
- Zorka Z. Vasiljevic
- Maria Vesna Nikolic
In Materials Chemistry
- Salvatore Gianluca Leonardi
- Zoran Stamenkovic
- Vladimir M. Milovanović
- Zorka Z. Vasiljevic
- Maria Vesna Nikolic
Citations in the corpus
- Semiconductor Gas Sensors: Materials, Technology, Design, and Application (2020, background): “It can be synthesized using different methods into a variety of nanostructure morphologies such as nanoparticles (traditional rounded 3D shape), nanorods [87,88] nanowires, nanobelts, nanoterapods [36], nanoflowers [39], nanowhiskers [89], and many others.”
- Two-Dimensional Zinc Oxide Nanostructures for Gas Sensor Applications (2017, background): “A deep analysis of these works showed that the sensing properties of ZnO towards NO2 were strongly influenced by morphology and particle sizes, as well as by the exposed crystallographic planes of the nanostructure [35].”