Fabrication of porous alumina templates with a large-scale tunable interpore distance in a H2C2O4-C2H5OH-H2O solution

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（10）
• 页码范围: 1608-1612
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11434-008-0092-0

摘要

Highly ordered porous alumina templates with a large-scale tunable interpore distance (100-445 nm) have been successfully fabricated under an electric field of 40-180 V by modifying oxalic acid solution with adequate alcohol. The results under our experimental conditions show that the phenomena of burning and breakdown during the high-field anodization process can be avoided by adding a proper amount of alcohol to the oxalic acid solution, An excellent linear relationship between interpore dis-tance and anodization voltage is obtained under 40-170 V, and the maximum anodization voltage that could be used to avoid burning and breakdown is 180 V.