摘要
使用溶胶、凝胶法制得添加氧化镧的活性氧化铝,详细研究了不同氧化镧添加量对氧化铝孔容、比表面积的影响。实验结果表明,添加氧化镧能有效增加活性氧化铝的比表面积,提高氧化铝的活性,体相中添加3%氧化镧经600℃煅烧10h后,比表面达到192.2m2/g。
The active alumina adding lanthana was maded by sol-gel method. The influence of lanthana addition amount on pore and specific surface area of the alumina was studied in detail. The results show that the lanthana addition can increase effectively the specific surface area and activity of the alumina, the specific surface area of body added by 3% lanthana reached 192.2m^2/g after alumina was calcined at 600℃ for 10 hours.
出处
《稀土》
EI
CAS
CSCD
北大核心
2006年第6期37-40,共4页
Chinese Rare Earths
基金
国家自然科学基金项目资助(59974007)
国家重点基础研究发展规划项目(GI9990664902)
关键词
活性氧化铝
比表面积
孔容
孔径
氧化镧
active alumina
speclfic surface area
bore
path
lanthana
