Template synthesis of porous fibers by using unidirectional freezing and development of structure-control method
| Project/Area Number |
26289287
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Partial Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
Tamon Hajime 京都大学, 工学(系)研究科(研究院), 教授 (30111933)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
鈴木 哲夫 京都大学, 工学(系)研究科(研究院), 助教 (50243043)
佐野 紀彰 京都大学, 工学(系)研究科(研究院), 准教授 (70295749)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
SANO Noriaki 京都大学, 大学院工学研究科, 准教授 (70295749)
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2014: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
|
|---|
| Keywords | 一方向凍結 / 多孔質繊維 / テンプレート合成 / ゾルーゲル法 / 多孔構造制御 / ゾル-ゲル法 / ゾル‐ゲル法 |
|---|
| Outline of Final Research Achievements |
Titania cryogel fibers and titania-silica cryogel fibers with various titania contents were synthesized by using unidirectional freezing. Since the fibers prepared had higher BET surface areas and larger mesopore volumes than those of a commercial photocatalyst, P-25, they showed higher photocatalytic activity towards the decomposition of large organic molecules than P-25. Hollow fibers of MFI type zeolite with high crystallinity were also synthesized by unidirectional freezing and steam-assisted crystallization. Their degree of crystallinity and crystal size could be independently controlled by the concentration of structure-directed agency, the crystallization temperature and the crystallization time.
Next, fibrous sintered bodies of alumina were synthesized by using organic gels prepared from phenol and formaldehyde as a binder. Their morphology and porous structure could be controlled by the conditions of unidirectional freezing and the application of ultrasonic wave to gels.
|
Report
(4 results)
Research Products
(10 results)
