Nanoporous α-Alumina Membranes with Pore Diameters Tunable over Wide Range of 30-350 nm. (18th September 2015)

• Record Type: Journal Article
• Authors: Asoh, Hidetaka; Masuda, Tatsuya; Ono, Sachiko
• Is Part Of: ECS transactions. Volume 69:Number 2(2015)
• Page Start: 225
• Page End: 233
• Publication Date: 2015-09-18
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/06902.0225ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : Nanoporous and α-alumina membranes with pore diameters tunable over a wide range of approximately 30–350 nm were successfully fabricated by optimizing the conditions for anodizing, subsequent detachment and heat treatment. Flat α-alumina membranes, each with a diameter of 25 mm and a thickness of approximately 50 μm, were obtained without thermal deformation. The present process is promising for fabricating free-standing and flat α-alumina membranes with various pore diameters; such membranes have potential technological and scientific applications in various fields.