期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 38, 页码 10147-10149出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201406387
关键词
aerogels; drying; gels; inorganic oxides; solvent effects
资金
- National Nature Science Foundation of China [21206018]
- Foundation of Ministry of Education of China [11YJCZH139]
Inorganic oxide aerogels have unique thermal, optical, electrical, magnetic, and chemical properties, which result in them potentially having a broad range of applications. However, their preparation is commonly based on a supercritical drying method, which greatly limits real applications of aerogels and their commercialization. Here we demonstrate a general method for drying wet gels to form aerogels that is based on the sublimation of organic solvent. The organic solvent must have a low surface tension, undergo sublimation easily, and have a high freezing point to allow the rapid synthesis of monolithic inorganic oxide aerogels under vacuum conditions. This cost-effective process will facilitate application of aerogel materials. This approach may also be used for the preparation of other porous materials, whose theoretical and practical applications should be investigated.
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