ZnO/ZnFe_(2)O_(4)复合分级微球的制备及三乙胺气敏性能研究  

Preparation and Triethylamine Gas Sensitive Properties of ZnO/ZnFe_(2)O_(4) Composite Hierarchical Microspheres

作　　者：胡娜娜 王超[1] 刘翔 HU Nana;WANG Chao;LIU Xiang(Hubei Key Laboratory of Plasma Chemical and Advanced Materials,School of Material science and Engineering,Wuhan Institude of Technology,Wuhan Hubei 430205,China)

机构地区：[1]武汉工程大学湖北省等离子体化学与新材料重点实验室,材料科学与工程学院,湖北武汉430205

出　　处：《辽宁化工》2025年第3期392-396,共5页Liaoning Chemical Industry

摘　　要：采用两步法制备了ZnO/ZnFe_(2)O_(4)复合分级微球,并对其形貌和结构性能进行了表征,进一步研究了ZnO/ZnFe_(2)O_(4)复合分级微球的气敏性能和机理。结果显示,在30×10^(-6)三乙胺下,相对于单纯ZnO分级微球,ZnFe_(2)O_(4)复合不仅降低了分级微球的最佳工作温度,还提升了器件对三乙胺的响应度(52.2),表明ZnFe_(2)O_(4)复合可以有效提升ZnO分级微球的三乙胺气敏性能。In this paper,ZnO/ZnFe_(2)O_(4) composite hierarchical microspheres were prepared by a two-step method.The surface morphology and structural properties were investigated,and the gas sensitivity and mechanism were further discussed.The results indicate that ZnFe_(2)O_(4) can effectively reduce the working temperature of ZnO hierarchical microspheres.Compared with ZnO hierarchical microspheres,ZnO/ZFe_(2)O_(4) composite hierarchical microspheres show the best sensitivity of 52.2 for 30 mg‧L^(-1) triethylamine.The formation of the ZnO/ZnFe_(2)O_(4) heterostructure is the critical factor for the improvement of triethylamine gas sensing performance.

关 键 词：ZnO/ZnFe_(2)O_(4) 三乙胺 气敏性能 

分 类 号：TQ132.41[化学工程—无机化工]