ZrO2纳米管的溶胶-凝胶模板法制备与结构表征  

Preparation and Structural Properties of Zirconia Nanotubes by the Solgel Method with Porous Anodic Alumina Oxide (AAO) as Templates

作　　者：孟秀霞[1] 杨乃涛[2] 谭小耀[1] 郭红[3] 

机构地区：[1]山东理工大学化学工程学院,山东淄博255049 [2]上海交通大学化学化工学院,上海200240 [3]山东理工大学分析测试中心,山东淄博255049

出　　处：《材料科学与工程学报》2008年第3期453-456,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金自主项目(20676073);山东理工大学科技基金资助项目(2005KJM34)

摘　　要：用溶胶-凝胶法在多孔阳极氧化铝模板中制备了ZrO2纳米管。通过SEM和TEM表征了ZrO2纳米管的形貌,用选区电子衍射和XRD研究了ZrO2纳米管的晶体结构,FT-IR分析了ZrO2纳米管的键合结构。结果表明,所制备的纳米管阵列高度有序,管径和长度分别与AAO模板的孔径和厚度相当;纳米管管壁的厚度随浸泡时间增加而增厚,可通过控制浸泡时间等因素来制备不同孔径的纳米管或线。ZrO2纳米管为单斜晶和立方晶形的多晶结构;纳米管的形成机理是溶胶粒子在AAO模板孔壁酸位上的吸附。Zirconia nanotubes were prepared by the sol-gel method using porous anodic alumina oxide （AAO） as templates. TEM, SEM, XRD and FT-IR were performed to investigate the morphology and the crystalline structure of the prepared zirconia nanotubes. The results indicate that highly ordered zirconia nanotube arrays have been formed with the diameter and length determined by the pore size and the thickness of the AAO templates, respectively. As the immersion time increased, the wall thickness of the nanotubes increases, forming nanowires with different lumen sizes or nanowires. The ZrO2 nanotubes possess a polycrystalline structure with the oblique and cubic phases. The formation mechanism of nanotubes is that the negatively charged sol particles are preferably adsorbed onto the acid sites on the AAO template pore walls.

关 键 词：二氧化锆 纳米管/纳米线 溶胶-凝胶 阳极氧化铝模板 

分 类 号：O648[理学—物理化学]