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Review

How Chemoresistive Sensors Can Learn from Heterogeneous Catalysis. Hints, Issues, and Perspectives

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Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, Circuito Exterior S/N, C.U., México City 04510, Mexico
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School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
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Department of Information Engineering, Brescia University, Via Valotti 9, 25133 Brescia, Italy
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Istituto per la Microelettronica e i Microsistemi, IMM-CNR, Via Monteroni, 73100 Lecce, Italy
*
Authors to whom correspondence should be addressed.
Academic Editors: Xianghong Liu and Nicola Donato
Chemosensors 2021, 9(8), 193; https://doi.org/10.3390/chemosensors9080193
Received: 15 June 2021 / Revised: 15 July 2021 / Accepted: 22 July 2021 / Published: 26 July 2021
(This article belongs to the Special Issue Functionalized Materials for Chemosensor Applications)
The connection between heterogeneous catalysis and chemoresistive sensors is emerging more and more clearly, as concerns the well-known case of supported noble metals nanoparticles. On the other hand, it appears that a clear connection has not been set up yet for metal oxide catalysts. In particular, the catalytic properties of several different oxides hold the promise for specifically designed gas sensors in terms of selectivity towards given classes of analytes. In this review, several well-known metal oxide catalysts will be considered by first exposing solidly established catalytic properties that emerge from related literature perusal. On this basis, existing gas-sensing applications will be discussed and related, when possible, with the obtained catalysis results. Then, further potential sensing applications will be proposed based on the affinity of the catalytic pathways and possible sensing pathways. It will appear that dialogue with heterogeneous catalysis may help workers in chemoresistive sensors to design new systems and to gain remarkable insight into the existing sensing properties, in particular by applying the approaches and techniques typical of catalysis. However, several divergence points will appear between metal oxide catalysis and gas-sensing. Nevertheless, it will be pointed out how such divergences just push to a closer exchange between the two fields by using the catalysis knowledge as a toolbox for investigating the sensing mechanisms. View Full-Text
Keywords: metal oxide gas sensors; surface modification; heterogeneous catalysis metal oxide gas sensors; surface modification; heterogeneous catalysis
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MDPI and ACS Style

Monter-Guzmán, J.Y.M.; Chu, X.; Comini, E.; Epifani, M.; Zanella, R. How Chemoresistive Sensors Can Learn from Heterogeneous Catalysis. Hints, Issues, and Perspectives. Chemosensors 2021, 9, 193. https://doi.org/10.3390/chemosensors9080193

AMA Style

Monter-Guzmán JYM, Chu X, Comini E, Epifani M, Zanella R. How Chemoresistive Sensors Can Learn from Heterogeneous Catalysis. Hints, Issues, and Perspectives. Chemosensors. 2021; 9(8):193. https://doi.org/10.3390/chemosensors9080193

Chicago/Turabian Style

Monter-Guzmán, Jessica Yazmín Monter, Xiangfeng Chu, Elisabetta Comini, Mauro Epifani, and Rodolfo Zanella. 2021. "How Chemoresistive Sensors Can Learn from Heterogeneous Catalysis. Hints, Issues, and Perspectives" Chemosensors 9, no. 8: 193. https://doi.org/10.3390/chemosensors9080193

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