Flexible impedance sensor based on Ti_(3)C_(2)T_(x)MXene and graphitic carbon nitride nanohybrid for humidity-sensing application with ultrahigh response  

作　　者：Yang Lu Meng-Yu Wang Dong-Yue Wang Yue-Hang Sun Zi-Hao Liu Rong-Ke Gao Lian-Dong Yu Dong-Zhi Zhang 

机构地区：[1]College of Control Science and Engineering,China University of Petroleum(East China),Qingdao,266580,China

出　　处：《Rare Metals》2023年第7期2204-2213,共10页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51777215 and 52005147);the Special Foundation of Taishan Scholar Project。

摘　　要：This paper reported the impedance-type humidity sensor based on Ti_(3)C_(2)T_(x)/g-C_(3)N_(4)nanomaterials which was fabricated on a flexible polyethylene terephthalate(PET)substrate.The scanning electron microscopy(SEM),X-ray diffraction(XRD),and X-ray photoelectron spectroscopy(XPS)measurements were used to demonstrate the successful synthesis and combination of Ti_(3)C_(2)T_(x)and g-C_(3)N_(4)nanomaterials.The performance of the humidity sensor was tested at room temperature.The experimental results showed that the Ti_(3)C_(2)T_(x)nanosheets with g-C_(3)N_(4)nanosheets endowed the humidity sensor with an ultra-high response,rapid response/recovery time,and negligible hysteresis.The complex impedance spectroscopy(CIS)and bode diagrams were used to further analyze the sensing mechanism of the Ti_(3)C_(2)T_(x)/g-C_(3)N_(4)humidity sensor.The Ti_(3)C_(2)T_(x)/g-C_(3)N_(4)humidity sensor can monitor skin humidity and high-humidity alarm,which demonstrates great potential applications in various fields.

关 键 词：Ti_(3)C_(2)T_(x)MXene Graphitic carbon nitride Flexible humidity sensor Humidity detection Alarm application 

分 类 号：TQ317[化学工程—高聚物工业] TB383.1[一般工业技术—材料科学与工程] TP212[自动化与计算机技术—检测技术与自动化装置]