Synthesis and characterization of nanoporous alumina films with controlled physical and chemical attributes

摘要

The performance of nanoporous surfaces are highly dependent on the pore's morphology, size and chemistry as well as their density and homogeneity. Therefore it is important to be able to control these factors. There are several methods to make nanoporous structures. Among them, self-organizing structures, have potentially the highest versatility and are relatively easy for fabrication. Anodized alumina which provides noticeable characteristics such as uniformity, high pore density, and controllable pore dimensions could be a good choice for many different applications. In this study, a protocol was developed to identify the key design rules governing the synthesis of alumina films with controlled nanoporous structure, by anodizing aluminum. The identification of key design rules and quantification of their effect on nanoporous anodized alumina, will lead to manufacturing tailored, pre-designed porous structures, by avoiding the trial-and-error procedures.