Rational construction and triethylamine sensing performance of foam shapedα-MoO_(3)@SnS_(2) nanosheets  

作　　者：Xianhui Dong Qing Han Yaru Kang Haidong Li Xinyu Huang Zhengtao Fang Huimin Yuan Ahmed A.Elzatahry Zongtao Chi Guanglei Wu Wanfeng Xie 

机构地区：[1]School of Material Science&Engineering,Institute of Materials for Energy and Environment,State Key Laboratory of Bio-Fibers and Eco-Textiles,Qingdao University,Qingdao 266071,China [2]School of Electronics and Information,Qingdao University,Qingdao 266071,China [3]College of Physics and Electronic Engineering,Qilu Normal University,Ji'nan 250200,China [4]Materials Science and Technology Program,College of Arts and Sciences,Qatar University,PO Box 2713,Doha,Qatar

出　　处：《Chinese Chemical Letters》2022年第1期567-572,共6页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51227804);funded by the Postdoctoral Scientific Research Foundation of Qingdao,National College Students Innovation and Entrepreneurship Training Program of China(No.G201911065028);College Students Innovation and Entrepreneurship Training Program of Qingdao University(Nos.X201911065058,X202011065056);Natural Science Foundation of Shandong Province(No.ZR2019YQ24);Taishan Scholars and Young Experts Program of Shandong Province(No.tsqn202103057);the Qingchuang Talents Induction Program of Shandong Higher Education Institution(Research and Innovation Team of Structural-Functional Polymer Composites)。

摘　　要：Owing to their high surface area,stable structure and easy fabrication,composite nanomaterials with encapsulation structures have attracted considerable research interest as sensing materials to detect volatile organic compounds.Herein,a hydrothermal route is designed to prepare foam shapedα-MoO_(3)@SnS_(2)nanosheets that exhibit excellent sensing performance for triethylamine(TEA).The developed sensor,based onα-MoO_(3)@SnS_(2)nanosheets,displays a high response of 114.9 for 100 ppm TEA at a low working temperature of 175℃with sensitivity higher than many other reported sensors.In addition,the device shows a wide concentration detection range(from 500 ppb to 500 ppm),good stability after exposure to air for 80 days,and excellent selectivity.The superior sensing characteristics of the developed sensor are attributed to the high crystallinity ofα-MoO_(3)/SnS_(2),excessive and accessible active sites provided by the good permeability of porous SnS_(2)shells,and the excellent conductivity of the encapsulation heterojunction structure.Thus,the foam shapedα-MoO_(3)@SnS_(2)nanosheets presented herein have promising practical applications in TEA gas sensing devices.

关 键 词：MoO_(3) SnS_(2) Encapsulation heterojunction TRIETHYLAMINE Sensing performance 

分 类 号：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] X851[自动化与计算机技术—控制科学与工程]