水合作用对阳极氧化多孔Al2O3/Al载体晶态的影响

doi:10.3724/SP.J.1077.2012.11552

无机材料学报 ›› 2012, Vol. 27 ›› Issue (7): 693-698.DOI: 10.3724/SP.J.1077.2012.11552

水合作用对阳极氧化多孔Al₂O₃/Al载体晶态的影响

张琪, 蒋中锐, 孙冬梅, 韩达英, 朱子彬

(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)

收稿日期:2011-08-31 修回日期:2011-11-23 出版日期:2012-07-20 网络出版日期:2012-06-06
基金资助:
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

Effect of Crystalline State of Anodized Porous Al₂O₃/Al as Supports by Hydration

ZHANG Qi, JIANG Zhong-Rui, SUN Dong-Mei, HAN Da-Ying, ZHU Zi-Bin

(Engineering Research Center of Large-scale Industrial Reactor Engineering and Technology Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China)

Received:2011-08-31 Revised:2011-11-23 Published:2012-07-20 Online:2012-06-06
Supported by:
National Natural Science Foundation of China(20906023); The Foundation of Ministry of Education of China for Returned Scholars; Fundamental Research Funds for the Central Universities

摘要/Abstract

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.

关键词: 阳极氧化, 氧化铝, 水合作用, 板状载体

Abstract: 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.

Key words: anodic oxidation, alumina, hydration, plate support

中图分类号:

TQ174

张琪, 蒋中锐, 孙冬梅, 韩达英, 朱子彬. 水合作用对阳极氧化多孔Al₂O₃/Al载体晶态的影响[J]. 无机材料学报, 2012, 27(7): 693-698.

ZHANG Qi, JIANG Zhong-Rui, SUN Dong-Mei, HAN Da-Ying, ZHU Zi-Bin. Effect of Crystalline State of Anodized Porous Al₂O₃/Al as Supports by Hydration[J]. Journal of Inorganic Materials, 2012, 27(7): 693-698.

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水合作用对阳极氧化多孔Al₂O₃/Al载体晶态的影响

Effect of Crystalline State of Anodized Porous Al₂O₃/Al as Supports by Hydration

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