In_(2)O_(3)立方体的制备及其对NO_(2)的气体传感性能  

Preparation of In_(2)O_(3) cubes and their gas-sensing properties for NO_(2)

作　　者：平妍 刘航嘉 金成星 马馨 隋崴崴[2] 付权涛 杨明睿 隋丽丽[1] PING Yan;LIU Hangjia;JIN Chengxing;MA Xin;SUI Weiwei;FU Quantao;YANG Mingrui;SUI Lili(School of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China;Ocean Department,Hebei Agricultural University,Qinhuangdao 066003,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,齐齐哈尔161006 [2]河北农业大学海洋学院,秦皇岛066003

出　　处：《黑龙江大学自然科学学报》2025年第1期37-44,共8页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(32272823);黑龙江省自然科学基金资助项目(YSTSXK202309);黑龙江省省属本科高校基本科研业务费项目(145309206)。

摘　　要：采用简单的一步溶剂热法合成了In_(2)O_(3)立方体,并利用X-射线衍射(X-ray diffraction,XRD)、扫描电子显微镜(Scanning electron microscopy,SEM)、透射电子显微镜(Transmission electron microscopy,TEM)、X射线光电子能谱(X-ray photoelectron spectra,XPS)和N2吸附-脱附技术对该In_(2)O_(3)立方体的结构及形貌进行了表征。制备的In_(2)O_(3)立方体尺寸范围在1~5μm。将In_(2)O_(3)立方体制成传感器,测试其对甲苯、丙酮、氯苯、苯、乙醇、二甲苯、甲醇、异丙醇和二氧化氮(NO_(2))气体的气敏性能。结果表明,在最佳工作温度92℃时,In_(2)O_(3)传感器对NO_(2)有良好的气体选择性及灵敏度,对10×10^(-6) NO_(2)气体的响应值为187.7,最低检出限为0.6×10^(-6)。基于In_(2)O_(3)立方体的传感器具有良好的稳定性、重现性和抗湿性,有望实现在实际的复杂环境中对痕量NO_(2)气体的低温检测。In_(2)O_(3) cubes were synthesized by a simple one-step solvothermal method,and the structure and morphology of In_(2)O_(3) cubes were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectra(XPS)as well as nitrogen adsorption-desorption techniques.The as-obtained In_(2)O_(3) cubes were 1~5μm in size,and the gas-sensing properties of the In_(2)O_(3) cubes sensors for toluene,acetone,chlorobenzene,benzene,ethanol,xylene,methanol,isopropanol and nitrogen dioxide were detected.The results show that the sensors exhibit excellent selectivity and sensitivity to NO_(2) at the optimal working temperature of 92℃.The response towards 10×10^(-6)NO_(2) is 187.7,and the detection limit is 0.6×10^(-6).The sensors based on In_(2)O_(3) cubes have good stability,reproducibility and humidity resistance,which are expected to detect trace NO_(2) gas at low working temperature in a practical and complex environment.

关 键 词：In_(2)O_(3)立方体 溶剂热法 二氧化氮 气敏性能 

分 类 号：O614.8[理学—无机化学]