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.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
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)
