title: Novel three-dimensional nanoporous alumina as a template for hierarchical TiO2 nanotube arrays.
abstract: Hierarchical micro-/nano-structures made easy. By using extremely rough, chemically etched microstructured aluminium foils, anodization in phosphoric acid under very harsh conditions, e.g., 10 wt% phosphoric acid and room temperature, can be repeatedly accomplished without suffering from breakdown. As a result, an alumina membrane with a three-dimensionally distributed nanopore structure is formed, which can be used as a general template to fabricate hierarchical micro-/nano-structures.
authors.affiliation: Max Planck Institute of Microstructure Physics, Weinberg 2, Halle, Germany. wangdaoai@yahoo.com.cn
authors.forename: Daoai
authors.initials: D
authors.lastname: Wang
authors.forename: Lianbing
authors.initials: L
authors.lastname: Zhang
authors.forename: Woo
authors.initials: W
authors.lastname: Lee
authors.forename: Mato
authors.initials: M
authors.lastname: Knez
authors.forename: Lifeng
authors.initials: L
authors.lastname: Liu
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: C009495:titanium dioxide; D014025:Titanium; D000537:Aluminum Oxide