期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 357, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2022.131419
关键词
ZIF-8-derived porous carbon; Polyaniline (PANI); Quartz crystal microbalance; Ammonia sensor
资金
- National Natural Science Foundation of China [51777215]
- Original Innovation Special Project of Science and Technology Plan of Qingdao West Coast New Area [2020-85]
This paper presents a QCM ammonia gas sensor based on PSS-doped ZIF-8-derived porous carbon and polyaniline decorated nanocomposite (PSS/ZIF-C/PANI). The sensor exhibits high sensitivity, excellent linearity, and strong response/recovery capability towards ammonia. Impedance analysis confirms the electrical parameters and quality factor of the QCM, and suggests a potential ammonia adsorption mechanism related to the synergistic effect of the composite nanomaterials.
This paper demonstrates a QCM ammonia gas sensor based on PSS-doped ZIF-8-derived porous carbon and polyaniline decorated nanocomposite (PSS/ZIF-C/PANI). The PSS/ZIF-C/PANI composite was successfully prepared by MOFs template-carbonization and in-situ polymerization. The morphology and structure composition of the prepared samples were completely tested by various material characterization methods. The ammonia sensing properties of PSS/ZIF-C/PANI coated QCM sensor at room temperature were systematically studied. Experimental results show that the sensor possesses quite sensitivity (5.67 Hz/ppm), excellent linearity, high response/recovery capability (28 s/17 s) and selectivity towards ammonia. Meanwhile, the electrical parameters and quality factor of QCM were verified by impedance analysis. Furthermore, the potential ammonia adsorption mechanism can be mainly related to the synergistic effect of composite nanomaterials. This work confirms that the PSS/ZIF-C/PANI composite provides a new avenue for QCM ammonia sensing, and the sensor is expected to become a potential candidate for ammonia detection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据