Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (3): 259-265.doi: 10.15541/jim20170180

• Orginal Article • Previous Articles     Next Articles

Synthesis and Property of Alumina Aerogel

Jing-Feng YANG1,2(), Qi-Hua WANG1(), Ting-Mei WANG1   

  1. 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
  • Received:2017-04-17 Revised:2017-06-04 Online:2018-03-20 Published:2018-03-12
  • About author:YANG Jing-Feng. E-mail: jfyang@licp.cas.cn
  • Supported by:
    National Basic Research Program of China (973 Program, 2015CB057502);National Natural Science Foundation of China (51673205)

Abstract:

Alumina aerogel has wide application prospect in high temperature thermal insulation and catalytic fields due to its high specific surface area, high porosity, and better thermal stability than silica aerogel. However, the complicated synthetic process and the low strength of alumina aerogel restrict their application. In this review, the synthetic process of alumina aerogel is firstly introduced. Some problems existed in the Sol-Gel process, the characteristics of various drying methods, and the latest drying methods developed by researchers are pointed out. Then, some representation achievements in the performance improvements on specific surface area, thermal stability, thermal conductivity and compressive strength of alumina aerogel in recent years are summarized. Finally, the development and application of alumina aerogel in high temperature catalytic and thermal insulation fields are introduced, their development tendency is prospected, and some issues on the study of alumina aerogel are highlighted.

Key words: alumina aerogel, synthesis, property, specific surface area, thermal stability, review

CLC Number: 

  • TB332