Electrochemical modification process of anodic alumina membrane

• Published in: Transactions of Nonferrous Metals Society of China Vol. 16; no. B02; pp. 681 - 684
• Main Author: 于美 刘建华 李松梅
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2006
• Subjects: anodic alumina membrane; electrodeposition; modification; nanowires; 电化学改性过程; 电沉积; 表面改性; 镍纳米线; 阳极铝膜; electrodeposition; nanowires; anodic alumina membrane; modification
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(06)60277-X

The modification procedure of anodic alumina membrane（AAM） was studied. The AAM structure after modification was characterized by nickel nanowires prepared in AAM. Scanning electron microscopy was used to characterize the topography and structure properties of the AAM and nickel nanowires. The transformation of the current during the voltage reduction was studied. The mechanism of current and structure change during modification was discussed. The results show that a root structure produces aider the AAM modification. The length of the root structure depends on the velocity of the voltage reduction. Slow voltage reduction leads to a large length of the root structure, otherwise, a short length of the root structure. At the end of the modification, the barrier layer is thin enough to be passed by electrons. Hence, the direct electrodeposition of one-dimensional nanowires can be carried out on the AAM with barrier layer and aluminum matrix successfully without any other treatments.