Hierarchical anodic alumina template-assisted fabrication of nanowires

Highly ordered, >100μm thick, porous anodic alumina templates have been fabricated and used for growing metal nanowires. With sufficient control over the anodisation parameters such as electrolyte type, anodising potential, and temperature, a hierarchical pore structure (diameter ranging from 30 to 300nm) can be obtained and then used to create similar structural hierarchy in the nanomaterials.