Simple fabrication of highly ordered anodic aluminum oxide (AAO) films

Abstract

Anodic aluminum oxide is a well-known template for nanofabrication. Structural features of anodic aluminum oxide, such as pore diameter, can be controlled by adjusting anodization operating conditions. In this paper we will describe how nanoporous alumina of different porosities was prepared using electrochemical anodization. The influence of anodization time, potential, and temperature on the formation of well-ordered porous anodic aluminum oxide was studied. Results from high-resolution field-emission scanning electron microscopy have shown that pore diameter increases with increasing potential, temperature, and anodization time. Optimal anodic aluminum oxide pore diameter and arrangement were obtained for samples anodized at 40 V, 30°C for 60 min.

Fabrication of YBCO nanowires with anodic aluminum oxide (AAO) template

“…We created porous anodic aluminum layers by using a simple two-step anodization of aluminum (99.5%) in 0.3 M oxalic acid electrolyte, as explained in our previous work [26]. The obtained template contains well-ordered hexagonal array of cylindrical pores with an average pore diameter of 40 nm and around 1 μm depth.…”

Upcycling Discarded Aluminum Cans into Nanoporous Membranes as an Eco-Friendly and Cost-Effective Strategy for Fabricating Polymer Nanoarrays and Self-Cleaning Surfaces

“…Porous anodic aluminum oxide (AAO) membranes possess numerous advantages, including larger surface areas, remarkable mechanical strengths, simple fabrication methods, and favorable portability. − Therefore, AAO membranes have demonstrated their applicability in areas such as sensors, filtration, and drug delivery . Furthermore, AAO membranes have been demonstrated as feasible candidates for various industrial applications. , One of the applications is serving as nanoscale scaffolds for the growth of nanomaterials, such as polymers, metals, and cells. − In this study, we present the preparations of AAO membranes using discarded aluminum cans.…”