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Open AccessArticle

New ZnO-Based Glass Ceramic Sensor for H2 and NO2 Detection

1
High Institute for Engineering & Technology, 21 K Cairo-Belbeis Rd, Al-Obour 11828, Egypt
2
INSTM R.U PoliTO-LINCE Laboratory, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy
3
Faculty of Engineering and Technology, Badr University in Cairo (BUC), Badr 11829, Egypt
4
Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
*
Author to whom correspondence should be addressed.
Sensors 2017, 17(11), 2538; https://doi.org/10.3390/s17112538
Received: 8 October 2017 / Revised: 30 October 2017 / Accepted: 31 October 2017 / Published: 3 November 2017
(This article belongs to the Special Issue Gas Sensors based on Semiconducting Metal Oxides)
In this study, a glass ceramic with a nominal composition 58ZnO:4Bi2O3:4WO3:33.3B2O3 was synthesized by melt quenching technique. A gas sensor was then manufactured using a ZnO sol-gel phase as a permanent binder of the glass–ceramic to an alumina substrate having interdigitated electrodes. The film sensitivity towards humidity, NH3, H2 and NO2 was studied at different temperatures. X-ray diffraction technique (XRD), field emission- scanning electron microscopy (FE-SEM) and differential thermal analysis (DTA) were used to characterize the prepared material. Though the response in the sub-ppm NO2 concentration range was not explored, the observed results are comparable with the latest found in the literature. View Full-Text
Keywords: glass ceramics; ZnO; sensors; electrical properties; NO2 monitoring glass ceramics; ZnO; sensors; electrical properties; NO2 monitoring
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MDPI and ACS Style

Hassan, M.; Afify, A.S.; Ataalla, M.; Milanese, D.; Tulliani, J.-M. New ZnO-Based Glass Ceramic Sensor for H2 and NO2 Detection. Sensors 2017, 17, 2538.

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