Preparation method of nano aluminum oxide (nano-Al2O3) with controllable hydroxyl content and use thereof Patent N° US12552679B2 BEIJING GAOWO IP FIRM - 03644 February 17, 2026 Previous patent image Next patent image Preparation method of nano aluminum oxide (nano-Al2O3) with controllable hydroxyl content and use thereof View on Google Patents Preparation method of nano aluminum oxide (nano-Al2O3) with controllable hydroxyl content and use thereof Download PDF