Atomically Thin 2D TiO_(2) Nanosheets with Ligand Modified Surface for Ultra-sensitive Humidity Sensor

作     者：Jianze Xiao Zhihua Fu Guane Wang Xiaoliang Ye Gang Xu Jianze Xiao;Zhihua Fu;Guane Wang;Xiaoliang Ye;Gang Xu

作者机构：College of ChemistryFuzhou UniversityFuzhou 350116China State Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of ScienceFuzhou 350002China University of Chinese Academy of SciencesBeijing 100049China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of ChinaFuzhou 350108China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2022年第41卷第4期

页      面：54-60页

核心收录：

学科分类：07[理学] 080202[工学-机械电子工程] 08[工学] 070205[理学-凝聚态物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(21905280,22171263,91961115,22175176 and 21975254) National Natural Science Foundation of Fujian(2021J02017 and 2020J01109) Youth Innovation Promotion Association CAS 

主　　题：TiO_(2)nanosheet ligand modification ultra-sensitive chemiresistive humidity sensing 

摘      要：As a kind of two-dimensional(2D)nanostructured materials,metal oxide nanosheets(MONS)are attractive and promising humidity sensing materials due to their considerable surface area,good charge carrier transportation,and designable surface functional groups ***,the ultra-thin MONS modified with active functional groups for humidity sensing are still *** a proof of concept,the atomically thin TiO_(2)nanosheets with high surface area and electron-donating amino groups are prepared by a structure-maintained post-ligand modification *** fabricated TiO_(2)-based sensors demonstrate superior humidity sensing performance with high response,short response time,narrow hysteresis,and ultra-low theoretical limit of detection of about 15 ***,the possible mechanism is proposed from the AC complex impedance measurements and DC instantaneous reverse polarity *** work provides a possible path for developing the high-performance 2D nanostructured metal oxides-based humidity materials through the surface chemical method.