Nanoarchitectonics for Improving Catalytic Performance of α-Alumina-supported Gold Nanoflower by Water Extraction and Ultraviolet-Ozone Treatment.

Shape-controlled nanocrystals, such as nanoflowers, are expected to serve as innovative nanocatalysts with high catalytic activity. It is well-established that these nanocrystals can be readily synthesized with specific shapes using colloidal methods in solutions containing capping agents. However, these capping agents tend to reduce the catalytic activity of nanocatalysts.