Self-ordered nanospike porous alumina fabricated under a new regime by an anodizing process in alkaline media.

ABSTRACT: High-aspect ratio ordered nanomaterial arrays exhibit several unique physicochemical and optical properties. Porous anodic aluminum oxide (AAO) is one of the most typical ordered porous structures and can be easily fabricated by applying an electrochemical anodizing process to Al. However, the dimensional and structural controllability of conventional porous AAOs is limited to a narrow range because there are only a few electrolytes that work in this process. Here, we provide a novel anodizing method using an alkaline electrolyte, sodium tetraborate (Na₂B₄O₇), for the fabrication of a high-aspect ratio, self-ordered nanospike porous AAO structure. This self-ordered porous AAO structure possesses a wide range of the interpore distance under a new anodizing r

SUBMITTER: Iwai M 

PROVIDER: S-EPMC8012646 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature