Journal article
A novel bulk sol-gel process to prepare monolithic silica materials
Journal of materials research, v 14(10), pp 4098-4102
Oct 1999
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A bulk sol-gel process has been developed to prepare monolithic silica materials at room temperature. The process involves an acid-catalyzed hydrolysis of tetraethyl orthosilicate in tetrahydrofuran containing aqueous HC1 catalyst, followed by neutralization with carbonate salts, extraction with aliphatic nonpolar solvents, molding, gelation, and drying. This method shortens the processing time from weeks for the conventional sol-gel process to several days. The silica objects prepared from the process are transparent, crack-free, and of relatively low volume shrinkage (e.g., 52%) and high silica content (e.g., 82%).
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Details
- Title
- A novel bulk sol-gel process to prepare monolithic silica materials
- Creators
- Ce Wang - Jilin UniversityYahong Zhang - Jilin UniversityYunfeng Lu - Jilin UniversityYen Wei - Drexel University
- Publication Details
- Journal of materials research, v 14(10), pp 4098-4102
- Publisher
- Cambridge University Press
- Number of pages
- 5
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Marketing
- Web of Science ID
- WOS:000083163700039
- Scopus ID
- 2-s2.0-0033276758
- Other Identifier
- 991019168810904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary