摘要
以Al(NO3).9H2O和en(乙二胺)为起始反应物,用微波水热法制备出单相纳米晶γ-AlOOH。用XRD和TG-DTG对合成产物进行了表征。结果表明:在200℃反应20 min,可获得平均晶粒度8.5 nm的γ-AlOOH。随着合成温度升高或反应时间延长,产物的晶粒度增加,晶胞参数减小,有助于获得热稳定性高的γ-AlOOH。
Single-phase nanocrystals γ-A1OOH were prepared by microwave hydrothermal method using Al（NO3）·9H2O and en （1,2-ethylenediamine） as raw materials. The products were characterized by XRD and TG-DTG. The results indicate that T-AlOOH with the average crystallite size of about 8.5 nm could be synthesized at 200℃ for 20 min. Higher temperature and longer reaction time can results in larger crystallite sizes, smaller latticeconstants and better thermal stability for r-AlOOH.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2009年第4期930-933,共4页
Journal of Synthetic Crystals
基金
山东省自然科学基金项目(No.2008E24)
关键词
纳米晶
-γAlOOH
微波水热法
晶粒度
nano crystallites
γ-AlOOH
microwave hydrothermal method
grain size
