基于金担载氧化钨纳米线的高性能三乙胺气体传感器研究  

Research on High-Performance Triethylamine Gas Sensor Based on Au-Loaded WO3 Nanowires

作　　者：王涛 张博 倪屹 WANG Tao;ZHANG Bo;NI Yi(MOE Engineering Research Center of 1OT Technology Application,Department of Electronic Engineering,Jiangnan University,Wuxi Jiangsu 214122,China)

机构地区：[1]江南大学电子工程系,物联网技术应用教育部工程研究中心,江苏无锡214122

出　　处：《传感技术学报》2022年第9期1157-1166,共10页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金(61903159);江苏省自然科学基金(BK20190617);中央高校基本科研业务费专项资金资助(JUSRP11925)。

摘　　要：作为一种有害性气体,三乙胺的检测备受关注。实际上,研究人员近年来已开发出基于多种敏感材料的三乙胺传感器。然而,梳理发现,现有三乙胺传感器的工作温度普遍偏高,且对低浓度三乙胺的检测潜力有限。借助静电纺丝法和高温煅烧工艺,成功制备出金担载的氧化钨纳米线。利用X射线粉末衍射、X射线光电子能谱、场发射扫描电子显微镜、透射电子显微镜等手段对样品的微观结构和形貌进行了详尽表征。气敏测试表明,金担载的氧化钨对20×10^(-6)三乙胺的最佳检测温度较纯氧化钨降低了40℃,响应值却提升了4倍。最后给出了相应的敏感机理。The detection of triethylamine(TEA),a hazardous gas has drawn much attention. In fact, researchers have developed TEA sensors based on various sensitive materials in recent years. However, it is found that the working temperatures of existing TEA sensors are generally high and these sensors also show limited potential in low-concentration TEA detection. Au-loaded WOnanowires(NWs)are successfully prepared by means of electrospinning and high-temperature calcination. The micro-structure and morphology of samples are detailedly characterized by X-ray powder diffraction(XRD),X-ray photoelectron spectroscopy(XPS),field emission scanning electron microscopy(FESEM)and transmission electron microscopy(TEM). Gas-sensing test showed that the optimal detection temperature of Au-loaded WOto 20×10^(-6)TEA is 40 ℃ lower than that of pure WO,but the response value is 4 times higher. The corresponding sensing mechanism is finally presented.

关 键 词：气体传感器 三乙胺检测 静电纺丝 氧化钨 金担载 

分 类 号：TP212.2[自动化与计算机技术—检测技术与自动化装置]