【摘要】 在碳酸氢铵和PEG2000混合溶液中,加入硫酸铝铵和PEG400的混合溶液得到白色沉淀,将白色沉淀物与正丁醇共沸后,在900℃煅烧1h,得到γ-Al2O3粉体,粉体粒径约为20nm;在1200℃煅烧1h,得到片状α-Al2O3粉体,粉体粒径约为60nm。更多还原

【Abstract】 When the solution with aluminium ammonium sulfate and PEG400 was mixed with the solution content of ammonium hydrogen carbonate and PEG2000,the white precipitation was obtained.Then the precipitation was azeotropic distillation.The γ-Al2O3 powder was obtained at 900 ℃ for 1 h,with size about 20 nm.The plate-like α-Al2O3 powder was obtained at 1 200 ℃ for 1 h,with size about 60 nm.更多还原