A Special Material or a New State of Matter: A Review and Reconsideration of the Aerogel

Materials

Ai Du¹  Bin Zhou¹  Zhihua Zhang¹ 

[1] Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Tongji University, Shanghai 200092, China; E-Mails:

关键词: aerogel;    preparation;    review;    state of matter;    nanoporous;    sol-gel;    history;    tendency;   

DOI  :  10.3390/ma6030941

来源: mdpi

【 摘 要 】

The ultrahighly nanoporous aerogel is recognized as a state of matter rather than as a functional material, because of its qualitative differences in bulk properties, transitional density and enthalpy between liquid and gas, and diverse chemical compositions. In this review, the characteristics, classification, history and preparation of the aerogel were introduced. More attention was paid to the sol-gel method for preparing different kinds of aerogels, given its important role on bridging the synthetic parameters with the properties. At last, preparation of a novel single-component aerogel, design of a composite aerogel and industrial application of the aerogel were regarded as the research tendency of the aerogel state in the near future.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.