An environment-friendly electrochemical detachment method for porous anodic alumina

被引：37

作者：

Chen, Wei

Wu, Jian-Shuang

Yuan, Jin-Hua

Xia, Xing-Hua ^{[1
]}

Lin, Xin-Hua

机构：

[1] Fujian Med Univ, Sch Pharm, Dept Pharmaceut Anal, Fuzhou 350004, Peoples R China

[2] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci, Nanjing 210093, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2007年 / 600卷 / 02期

基金：

中国国家自然科学基金;

关键词：

porous anodic alumina; electrochemical detachment; electric field enhanced dissolution; electric field distribution model; ethanol;

D O I：

10.1016/j.jelechem.2006.10.022

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper describes an improved one-step voltage pulse detachment method by using perchloric acid and ethanol mixture as detaching solution for the preparation of through-hole porous anodic alumina (PAA) membranes. The detachment of PAA from aluminum substrate and the dissolution of the barrier layer can be completed simultaneously in the detachment solution by applying a pulse voltage in situ after the anodization process. The influence of voltage pulse height and nature of the detachment solution on the efficiency of detachment have been systernatically investigated. The present procedure is more environmental friendly and efficient as compared to the conventional electrochemical detachment methods and is promising for the preparation of freestanding PAA films with through-hole morphology which are important for nanomaterials synthesis and nanoscale separation. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：257 / 264

页数：8

共 42 条

[1] Highly flexible polyelectrolyte nanotubes [J].