Pd-Decorated ZnO Hexagonal Microdiscs for NH<sub>3</sub> Sensor

Yi Li; Boyu Zhang; Juan Li; Zaihua Duan; Yajie Yang; Zhen Yuan; Yadong Jiang; Huiling Tai

doi:10.3390/chemosensors12030043

Chemosensors (Mar 2024)

Pd-Decorated ZnO Hexagonal Microdiscs for NH<sub>3</sub> Sensor

Yi Li,
Boyu Zhang,
Juan Li,
Zaihua Duan,
Yajie Yang,
Zhen Yuan,
Yadong Jiang,
Huiling Tai

Affiliations

Yi Li: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Boyu Zhang: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Juan Li: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Zaihua Duan: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Yajie Yang: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Zhen Yuan: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Yadong Jiang: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Huiling Tai: State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China

DOI: https://doi.org/10.3390/chemosensors12030043
Journal volume & issue: Vol. 12, no. 3
p. 43

Abstract

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The NH3 sensor is of great significance in preventing NH3 leakage and ensuring life safety. In this work, the Pd-decorated ZnO hexagonal microdiscs are synthesized using hydrothermal and annealing processes, and the gas sensor is fabricated based on Pd-decorated ZnO hexagonal microdiscs. The gas-sensing test results show that the Pd-ZnO gas sensor has a good response to NH3 gas. Specifically, it has a good linear response within 0.5–50 ppm NH3 at the optimal operating temperature of 230 °C. In addition, the Pd-ZnO gas sensor exhibits good repeatability, short response time (23.2 s) and good humidity resistance (10–90% relative humidity). This work provides a useful reference for developing an NH3 sensor.

Published in Chemosensors

ISSN: 2227-9040 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry: Biochemistry
Website: http://www.mdpi.com/journal/chemosensors

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