Method for rapidly producing microporous and mesoporous materials
Abstract
An improved, rapid process is provided for making microporous and mesoporous materials, including aerogels and pre-ceramics. A gel or gel precursor is confined in a sealed vessel to prevent structural expansion of the gel during the heating process. This confinement allows the gelation and drying processes to be greatly accelerated, and significantly reduces the time required to produce a dried aerogel compared to conventional methods. Drying may be performed either by subcritical drying with a pressurized fluid to expel the liquid from the gel pores or by supercritical drying. The rates of heating and decompression are significantly higher than for conventional methods. 3 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 563717
- Patent Number(s):
- 5686031
- Application Number:
- PAN: 8-368,823
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 11 Nov 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; FABRICATION; POROUS MATERIALS; PRECURSOR; FOAMS; GELS; DRYING
Citation Formats
Coronado, P R, Poco, J F, Hrubesh, L W, and Hopper, R W. Method for rapidly producing microporous and mesoporous materials. United States: N. p., 1997.
Web.
Coronado, P R, Poco, J F, Hrubesh, L W, & Hopper, R W. Method for rapidly producing microporous and mesoporous materials. United States.
Coronado, P R, Poco, J F, Hrubesh, L W, and Hopper, R W. Tue .
"Method for rapidly producing microporous and mesoporous materials". United States.
@article{osti_563717,
title = {Method for rapidly producing microporous and mesoporous materials},
author = {Coronado, P R and Poco, J F and Hrubesh, L W and Hopper, R W},
abstractNote = {An improved, rapid process is provided for making microporous and mesoporous materials, including aerogels and pre-ceramics. A gel or gel precursor is confined in a sealed vessel to prevent structural expansion of the gel during the heating process. This confinement allows the gelation and drying processes to be greatly accelerated, and significantly reduces the time required to produce a dried aerogel compared to conventional methods. Drying may be performed either by subcritical drying with a pressurized fluid to expel the liquid from the gel pores or by supercritical drying. The rates of heating and decompression are significantly higher than for conventional methods. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {11}
}
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