학술논문
有序锥形孔氧化铝模板的制备及其表征分析 / Fabrication and characterization of alumina membranes with highly ordered conical nanohole arrays
Document Type
Academic Journal
Source
山东建筑大学学报 / Journal of Shandong Jianzhu University. 32(2):159-163
Subject
Language
Chinese
ISSN
1673-7644
Abstract
阳极氧化铝(AAO)模板具有高度有序的纳米孔阵列,在制备一维纳米材料方面有广泛的应用,阳极氧化铝模板法是制备纳米线及纳米管的重要方法.文章基于二次阳极氧化的方法实验制备了柱面氧化铝模板,围绕氧化铝模板纳米孔径的大小和有序性,利用扫描电子显微镜(SEM)对所形成纳米孔的形貌特征进行观测,并与平面阳极氧化铝模板的纳米孔进行比较,分析了氧化铝模板表面纳米孔的生长情况及其形成机理.结果表明:高度有序的锥形纳米孔阵列会沿着柱面直径辐射生长;纳米孔没有出现弯曲和分叉现象,柱面AAO模板内外表面纳米孔径大小分别为40和55 nm;纳米孔径变化率为0.5 nm/μm,膜厚约为30μm,通过调整柱面铝片的曲率半径和阳极氧化时间,可以控制锥形纳米孔径大小范围在60~120 nm之间.
Anodic aluminum oxide (AAO)has been widely used in the preparation of one dimension and zero dimensional materials due to its highly ordered nano hole array.Anodic alumina template method is an important method to prepare nanowires and nanotubes.This paper reports the fabrication of cylindrical aluminum oxide template based on the two-step anodization method in sulfuric acid solution.This study makes the observation around the size and the order of the nano pore size of the alumina template by using the scanning electron microscopy (SEM),and then compares it with the plane anodic aluminum oxide template and explores the growth of nano pores on the surface of alumina template.The results show that straight nanohole arrays have been grown along the radical directions of the cylindrical alumina membrane without bending or branching at all.The inner and outer surfaces of cylindrical AAO template nano hole size are 40 nm and 55 nm.The change rate of the nano hole is 0.5 nm/μm (the film thickness is about 30 μm ).By adjusting the radius of curvature of the cylindrical aluminum sheet and anodizing time,the radius of the conical nanopore size can be controlled in the range of 60-120 nm.
Anodic aluminum oxide (AAO)has been widely used in the preparation of one dimension and zero dimensional materials due to its highly ordered nano hole array.Anodic alumina template method is an important method to prepare nanowires and nanotubes.This paper reports the fabrication of cylindrical aluminum oxide template based on the two-step anodization method in sulfuric acid solution.This study makes the observation around the size and the order of the nano pore size of the alumina template by using the scanning electron microscopy (SEM),and then compares it with the plane anodic aluminum oxide template and explores the growth of nano pores on the surface of alumina template.The results show that straight nanohole arrays have been grown along the radical directions of the cylindrical alumina membrane without bending or branching at all.The inner and outer surfaces of cylindrical AAO template nano hole size are 40 nm and 55 nm.The change rate of the nano hole is 0.5 nm/μm (the film thickness is about 30 μm ).By adjusting the radius of curvature of the cylindrical aluminum sheet and anodizing time,the radius of the conical nanopore size can be controlled in the range of 60-120 nm.