纳米CuO-ZnO粉体结构表征及气敏性分析  

Structure characterization and gas sensing property of CuO-ZnO nano powder

作　　者：王彦 薛永强[2] 乔仙蓉 WANG Yan;XUE Yongqiang;QIAO Xianrong(Department of Metallurgical and Environmental Engineering,Shanxi Engineering Vocational College,Taiyuan 030009,China;College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]山西工程职业学院冶金与环境工程系,山西太原030009 [2]太原理工大学化学化工学院,山西太原030024

出　　处：《兵器材料科学与工程》2021年第5期87-91,共5页Ordnance Material Science and Engineering

基　　金：国家自然科学基金(21373147)。

摘　　要：以醋酸锌、硫酸铜及氢氧化钠试剂为原料,用溶胶-凝胶法制备CuO的质量分数为0、2.5%、4.5%、10.5%的CuOZnO纳米粉体,并制成CuO-ZnO气敏元件,分析XRD,测试其对甲醛与丙酮气体的气敏性。结果表明:CuO-ZnO纳米粉体结晶度和纯度较高;CuO-ZnO气敏元件对甲醛与丙酮气体的气敏性均高于纯ZnO气敏元件;CuO的质量分数为4.5%的CuO-ZnO气敏元件对甲醛与丙酮气体的气敏性最高,随气体浓度升高而升高。CuO-ZnO nano powders with CuO mass fraction of 0,2.5%,4.5% and 10.5% were prepared by sol-gel method using zinc acetate,copper sulfate and sodium hydroxide reagents as raw materials. The CuO-ZnO gas sensors were made and XRD was analyzed. The gas sensitivity to formaldehyde and acetone gas was tested. The results show that the crystallinity and purity of CuO-ZnO nano powder are high. The gas sensitivity of CuO-ZnO gas sensor to formaldehyde and acetone gas is higher than that of pure ZnO gas sensor. The gas sensitivity of CuO-ZnO gas sensor with 4.5%(mass fraction)CuO to formaldehyde and acetone gas is the highest,and increases with the increase of gas concentration.

关 键 词：XRD 掺杂CuO ZnO纳米粉体 结构表征 气敏性能 气敏元件 

分 类 号：TQ174[化学工程—陶瓷工业]