Abstract
This work presents an effective method for fabricating hierarchical Al2O3 ceramic fibers with high surface-to-volume ratios. To do this, the microscaled Al2O3 fibers are fabricated via a simple biotemplate method employing cotton fibers as bio-templates. The hierarchical architectures are designed by in situ growth of AlOOH nanocrystal on surface of Al2O3 microtube walls in a closed hydrothermal system. The developed facile route is highly valuable and feasible for hierarchical porous Al2O3 ceramic materials for applications in research and industrial fields.
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