Sensitive Materials Used in Surface Acoustic Wave Gas Sensors for Detecting Sulfur-Containing Compounds

被引:5
|
作者
Wang, Yuhang [1 ]
Yan, Cancan [2 ]
Liang, Chenlong [3 ,4 ]
Liu, Ying [1 ]
Li, Haoyang [1 ]
Zhang, Caihong [1 ]
Duan, Xine [1 ]
Pan, Yong [2 ]
机构
[1] Shanxi Univ, Sch Chem & Chem Engn, Taiyuan 030006, Peoples R China
[2] State Key Lab NBC Protect Civilian, Beijing 102205, Peoples R China
[3] Chinese Acad Sci, Inst Acoust, Beijing 100190, Peoples R China
[4] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
polymer; films; surface acoustic wave (SAW); gas sensor; mustard gas; hydrogen sulfide; sulfur dioxide; CHEMICAL WARFARE AGENTS; MICROSENSOR COATINGS; MUSTARD GAS; THIN-FILMS; SAW SENSOR; ARRAY; TEMPERATURE; SYSTEM; HUMIDITY; VAPORS;
D O I
10.3390/polym16040457
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
There have been many studies on surface acoustic wave (SAW) sensors for detecting sulfur-containing toxic or harmful gases. This paper aims to give an overview of the current state of polymer films used in SAW sensors for detecting deleterious gases. By covering most of the important polymer materials, the structures and types of polymers are summarized, and a variety of devices with different frequencies, such as delay lines and array sensors for detecting mustard gas, hydrogen sulfide, and sulfur dioxide, are introduced. The preparation method of polymer films, the sensitivity of the SAW gas sensor, the limit of detection, the influence of temperature and humidity, and the anti-interference ability are discussed in detail. The advantages and disadvantages of the films are analyzed, and the potential application of polymer films in the future is also forecasted.
引用
收藏
页数:17
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