Harmful gas recognition exploiting a CTL sensor array

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Abstract

In this paper, a novel cataluminescence (CTL)-based sensor array consisting of nine types of catalytic materials is developed for the recognition of several harmful gases, namely carbon monoxide, acetone, chloroform and toluene. First, the experimental setup is constructed by using sensing nanomaterials, a heating plate, a pneumatic pump, a gas flow meter, a digital temperature device, a camera and a BPCL Ultra Weak Chemiluminescence Analyzer. Then, unique CTL patterns for the four types of harmful gas are obtained from the sensor array. The harmful gases are successful recognized by the PCA method. The optimal conditions are also investigated. Finally, experimental results show high sensitivity, long-term stability and good linearity of the sensor array, which combined with simplicity, make our system a promising application in this field. © 2013 by the authors; licensee MDPI, Basel, Switzerland.

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Wang, Q., Xie, L., Zhu, B., Zheng, Y., & Cao, S. (2013). Harmful gas recognition exploiting a CTL sensor array. Sensors (Switzerland), 13(10), 13509–13520. https://doi.org/10.3390/s131013509

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