Patent Number: 6,168,830

Title: Process for fabricating crystalline metal oxide material

Abstract: The invention relates a process for fabricating crystalline metal oxide materials comprising tin oxide, zirconia, or titania in form as powder, monolith gel or film by first forming a metal oxide material containing --OH surface group through a sol-gel process, and then treating them with [SiR.sub.m ].sub.n X.sub.z H.sub.y compound which reacts with the --OH group to form --OSiR.sub.m surface group, and heating the thus-treated oxide material at a high temperature to crystallize them into a crystalline metal oxide material with high crystallinity, small crystal size (<100 .ANG.) and high surface area (>100 m.sup.2 /g).

Inventors: Nae-Lih; Wu (Taipei, TW), S-yen; Wang (Taipei, TW)

Assignee: National Science Council of Republic of China

International Classification: B01J 21/06 (20060101); B01J 23/14 (20060101); B01J 21/00 (20060101); B01J 31/02 (20060101); B01J 35/02 (20060101); B01J 37/00 (20060101); B01J 37/02 (20060101); B01J 37/03 (20060101); B01J 35/00 (20060101); C01G 25/00 (20060101); C01G 23/053 (20060101); C01G 19/00 (20060101); C01G 23/00 (20060101); C01G 25/02 (20060101); C01G 19/02 (20060101); C09C 1/36 (20060101); G01N 27/12 (20060101); B05D 005/00 (); B05D 003/02 ()

Expiration Date: 01/02/2018