CuO纳米线的热氧化制备及其表面的ZnO纳米颗粒修饰

CuO纳米线的热氧化制备及其表面的ZnO纳米颗粒修饰 Syntheses of CuO Nanowires by Thermal Oxidation and Surface Modification by ZnO Nanoparticles 王光毅 WANG Guangyi 1 first-author 李金钗 LI Jinchai 1 武汉大学物理科学与技术学院 武汉大学物理科学与技术学院 School of Physics and Technology,Wuhan University School of Physics and Technology,Wuhan University 以Cu为基底,经热氧化制备出高质量的有序的单晶CuO纳米线阵列.通过采用离子束溅射技术,在高比表面积的CuO纳米线表面修饰ZnO纳米颗粒.运用X射线衍射仪（XRD）、透射电镜（TEM）、扫描电子显微镜（SEM）研究了样品的成分、晶体结构和表面形貌.实验结果表明,不同温度和时间下生长出的CuO纳米线阵列的纳米结构具有不同的成分、结构和形貌;600℃热氧化4 h生长出的纳米线均匀致密地附着在衬底表面,ZnO纳米颗粒浓密而规则地出现在CuO纳米线表面.这种由ZnO纳米颗粒和CuO纳米线构成的复合异质结构可以有效地增强CuO纳米线对CO的选择性探测特性. High-quality single crystal CuO nanowire arrays were prepared by the thermal oxidation of copper slices.Then the surfaces of CuO nanowires were modified by ZnO nanoparticles using ion beam sputtering method.The structures and morphologies of CuO samples had been investigated by X-ray diffraction（XRD） and field emission scanning electron microscopy（SEM）.The results show that CuO nanowires synthesized in different temperatures and glowing time,have different compositions,structures and morphologies.The surface of Cu was covered by CuO nanowires which were made by thermal oxidation 4 h under 600 ℃.ZnO nanoparticles were formed on the surfaces of CuO nanowires in dense and uniform.This composite heterostructure may effectively enhance the selectivity of CuO nanowire gas sensor for detection of CO. CuO纳米线 热氧化法 ZnO纳米颗粒 表面修饰 CuO nanowires thermal oxidation ZnO nanoparticles surface modification 10.14188/j.1671-8836.2011.03.005 TB383.1 国家自然科学基金资助项目（10975109） 2011-03-01 2021-04-01 3 57