A holistic review on the recent trends, advances, and challenges for high-precision room temperature liquefied petroleum gas sensors.

Autor: Tladi BC; Department of Physics, University of the Free State, P. O. Box 339, Bloemfontein, ZA9300, South Africa., Kroon RE; Department of Physics, University of the Free State, P. O. Box 339, Bloemfontein, ZA9300, South Africa. Electronic address: KroonRE@ufs.ac.za., Swart HC; Department of Physics, University of the Free State, P. O. Box 339, Bloemfontein, ZA9300, South Africa. Electronic address: SwartHC@ufs.ac.za., Motaung DE; Department of Physics, University of the Free State, P. O. Box 339, Bloemfontein, ZA9300, South Africa. Electronic address: MotaungDE@ufs.ac.za.
Jazyk: angličtina
Zdroj: Analytica chimica acta [Anal Chim Acta] 2023 May 01; Vol. 1253, pp. 341033. Date of Electronic Publication: 2023 Mar 07.
DOI: 10.1016/j.aca.2023.341033
Abstrakt: Liquefied petroleum gas (LPG), which is mainly composed of hydrocarbons, such as propane and butane, is a flammable gas that is considered a clean source of energy. Currently, the overwhelming use of LPG as fuel in vehicles, domestic settings, and industry has led to several incidents and deaths globally due to leakage. As a result, the appropriate detection of LPG is vital; thus, gas-sensing devices that can monitor this gas rapidly and accurately at room temperature, are required. This work reviews the current advances in LPG gas sensors, which operate at room temperature. The influences of the synthesis methods and parameters, doping, and use of catalysts on the sensing performance are discussed. The formation of heterostructures made from semiconducting metal oxides, polymers, and graphene-based materials, which enhance the sensor selectivity and sensitivity, is also discussed. The future trends and challenges confronted in the advancement of LPG room temperature operational gas sensors, and critical ideas concerning the future evolution of LPG gas sensors, are deliberated. Additionally, the advancements in the next-generation gas sensors, such as the wireless detection of LPG leakage, self-powered sensors driven by triboelectric/piezoelectric mechanisms, and artificial intelligent systems are also reviewed. This review further focuses on the use of smartphones to circumvent the use of costly instruments and paves the way for cost-efficient and portable monitoring of LPG. Finally, the approach of utilizing the Internet of Things (IoT) to detect/monitor the leakage of LPG has also been discussed, which will provide better alerts to the users and thus minimize the effects of leakages.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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