文献类型：期刊文献

中文题名：水合作用对阳极氧化多孔Al2O3/Al载体晶态的影响

英文题名：Effect of Crystalline State of Anodized Porous Al_2O_3/Al as Supports by Hydration

作者：张琪[1];蒋中锐[1];孙冬梅[1];韩达英[1];朱子彬[1]

机构：[1]华东理工大学化工学院,大型工业反应器工程教育部工程研究中心,上海200237

年份：2012

卷号：27

期号：7

起止页码：693

中文期刊名：无机材料学报

外文期刊名：Journal of Inorganic Materials

收录：CSTPCD;;EI(收录号：20123615395940);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(20906023);教育部留学回国人员科研启动基金;中央高校基本科研业务费专项基金~~

语种：中文

中文关键词：阳极氧化;氧化铝;水合作用;板状载体

外文关键词：anodic oxidation; alumina; hydration; plate support

摘要：通过阳极氧化法制备出多孔氧化铝板状催化剂载体,考察了不同水合条件对多孔氧化铝膜性能的影响,并通过TG、XRD、SEM和BET等分析手段研究了Al2O3/Al的晶态形成规律.实验结果表明,最佳水合温度为80℃,非晶态氧化铝发生反应生成AlOOH,经过500℃焙烧可以完全转化为γ-Al2O3.经过水合后制备的γ-Al2O3/Al板状催化剂载体在高温水蒸气氛围下晶型结构稳定性能好.
The porous alumina as a plate catalytic support was prepared by anodization.Effects of hydration condition on the property of alumina supports were studied.The samples were characterized by XRD,SEM,BET and etc.to illustrate the Al2O3/Al forming mechanism.The results show that the best hydration temperature is 80℃,at which the amorphous alumina can be transformed into AlOOH,and become γ-Al2O3 after 500℃ calcination.Meanwhile,the monoliths catalytic carriers have a superior stability for crystalline structures in the steam atmosphere at high temperature.