摘要
采用硝酸铝经氨水沉淀制备氧化铝,加入适量的聚乙二醇,120℃失水后得到凝胶,经900℃焙烧可得到纳米γ-Al2O3。利用XRD、TEM和BET对样品进行表征,结果表明:γ-Al2O3具有大的比表面(203m2/g)和1.26cm3/g左右的孔容。
Alumina can be prepared with ammonia depositing aluminum nitrate. Then putting proper polyethylene glycol in before-mentioned solution, the gel was gained under 120℃. Once more, the high surface area nanometer γ-Al2O3 was obtained after calcinations at 900℃. Characterized by XRD, TEM and BET, the results shows that the prepared γ-Al2O3 had specific surface area at 203 m^2/g and pore volume at 1.26cm^3/g .
出处
《楚雄师范学院学报》
2007年第9期46-49,共4页
Journal of Chuxiong Normal University
基金
云南省教育厅自然科学基金(5Z0048A)资助
关键词
纳米氧化铝
比表面积
孔经分布
nanometer γ-Al2O3
surface area
pore size distribution
