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Keywords = ZnO hexagonal microdiscs

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10 pages, 3624 KiB  
Communication
Pd-Decorated ZnO Hexagonal Microdiscs for NH3 Sensor
by Yi Li, Boyu Zhang, Juan Li, Zaihua Duan, Yajie Yang, Zhen Yuan, Yadong Jiang and Huiling Tai
Chemosensors 2024, 12(3), 43; https://doi.org/10.3390/chemosensors12030043 - 5 Mar 2024
Cited by 58 | Viewed by 3554
Abstract
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue The State-of-the-Art Gas Sensor)
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