Superior triethylamine-sensing properties based on SnO2 hollow nanospheres synthesized via one-step process  

作　　者：Mingyue Xu Shu Yan Zia Ur Rehman Jianhua Hou Liangyun Zhai Shengjie Zhu Chuanbao Cao Wanfeng Xie Junyu Zhong Jun Yang 

机构地区：[1]State Key Laboratory of Bio-fibers and Eco-textiles,School of Electronics and Information,College of Materials Science and Engineering,College of Chemistry and Chemical Engineering,Qingdao University,Qingdao,266071,China [2]State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing,100190,China [3]College of Environmental Science and Engineering,Yangzhou University,Yangzhou,Jiangsu,225009,China [4]State Key Laboratory of Chemical Safety,SINOPEC Research Institute of Safety Engineering Co.,Ltd.,Qingdao,266104,China [5]National Registration Center for Chemicals,Ministry of Emergency Management,Qingdao,266071,China [6]Research Center of Materials Science,Beijing Institute of Technology,Beijing,100081,China

出　　处：《Progress in Natural Science:Materials International》2024年第4期682-689,共8页自然科学进展·国际材料(英文版)

基　　金：supported by the National Natural Science Foundation of China(No.51901110);the State Key Laboratory of Bio-fibers and Ecotextiles,Qingdao University(ZKT38,KFKT202206)

摘　　要：Due to serious harm of triethylamine(TEA)to environmental safety and human health,it is significant to synthesize gas-sensitive materials with high performance for TEA detection.However,it is still a challenge to achieve high-sensitivity detection of TEA at low temperature for a sensor synthesized through an economical and efficient method.In this work,hollow-structured SnO_(2)(HS-SnO_(2))nanospheres have been fabricated by a facile,low-cost hydrothermal method in one step,which exhibit superior TEA-sensing properties,including not only ultrahigh response(127.75)for 100 ppm TEA,good selectivity,but also fast response and recovery time(17/28 s),low detection threshold(1 ppm)and robust stability at a relatively low optimum operational temperature of 225°C.The excellent gas-sensitizing performances are ascribed to porous hollow structures with rich oxygen vacancies that provide abundant active sites for raising O_(2)adsorption and reaction of TEA and oxygen species.This work offers an effective and economical strategy for fabricating high-performance TEA sensors for industrial applications.

关 键 词：Hollow-structured SnO_(2)nanospheres TEA High response Gas sensors 

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]