TW200619142A - Process for preparing porous silica xerogel - Google Patents

Process for preparing porous silica xerogel

Info

Publication number
TW200619142A
TW200619142A TW093138123A TW93138123A TW200619142A TW 200619142 A TW200619142 A TW 200619142A TW 093138123 A TW093138123 A TW 093138123A TW 93138123 A TW93138123 A TW 93138123A TW 200619142 A TW200619142 A TW 200619142A
Authority
TW
Taiwan
Prior art keywords
silica xerogel
porous silica
preparing porous
acid
base catalyst
Prior art date
Application number
TW093138123A
Other languages
Chinese (zh)
Other versions
TWI262896B (en
Inventor
Yu-Cheng Chang
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW93138123A priority Critical patent/TWI262896B/en
Publication of TW200619142A publication Critical patent/TW200619142A/en
Application granted granted Critical
Publication of TWI262896B publication Critical patent/TWI262896B/en

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  • Silicon Compounds (AREA)
  • Catalysts (AREA)

Abstract

The present invention discloses a process for preparing silica xerogel including 2-step acid-base catalyst procedures, a surface modification with trimethylchlorosilane, and a heat treatment at a high temperature. The 2-step acid-base catalyst procedures includes mixing tetraethoxysilane, isopropanol, water and acid to form a sol solution, and adding an aqueous solution of ammonium hydroxide to start gelation.
TW93138123A 2004-12-09 2004-12-09 Process for preparing porous silica xerogel TWI262896B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93138123A TWI262896B (en) 2004-12-09 2004-12-09 Process for preparing porous silica xerogel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93138123A TWI262896B (en) 2004-12-09 2004-12-09 Process for preparing porous silica xerogel

Publications (2)

Publication Number Publication Date
TW200619142A true TW200619142A (en) 2006-06-16
TWI262896B TWI262896B (en) 2006-10-01

Family

ID=37966171

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93138123A TWI262896B (en) 2004-12-09 2004-12-09 Process for preparing porous silica xerogel

Country Status (1)

Country Link
TW (1) TWI262896B (en)

Also Published As

Publication number Publication date
TWI262896B (en) 2006-10-01

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