| Project/Area Number |
23350102
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Inorganic industrial materials
|
|---|
| Research Institution | Keio University |
|---|
Principal Investigator |
IMAI HIROAKI 慶應義塾大学, 理工学部, 教授 (70255595)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
WATANABE Hiroto 東京都立産業技術研究センター, 材料技術グループ, 研究員 (00500901)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
FUJIMAKI Yasuto 東京都立産業技術研究センター, 材料技術グループ, 研究員 (70392305)
HAYASHI Kosei 東京都立産業技術研究センター, 材料技術グループ, 研究員 (80560151)
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
|
|---|
| Keywords | 量子ドット / 多孔質体 / 光触媒、 / サーモクロミズム / ナノ粒子 / 光触媒 / 酸化触媒 / サブナノ粒子 |
|---|
| Research Abstract |
Synthesis of supermicroporous silicas (SMPSs) having controllable pores in the range from single nanometers to sub-nanometers was investigated for utilization for the production of transition-metal oxide quantum dots. The SMPSs with precisely tuned pores in the range of 0.6-3.0 nm were successfully prepared due to the enhanced micelle formability achieved in the solvent-free synthetic method. These SMPSs act as excellent templates for the synthesis of various kinds of metal oxide quantum dots. These quantum dots around 1nm exhibit significant expansion of their bandgap due to the strong quantum-size effect. Furthermore, they show unique functionalities, such as novel photocatalytic ability and distinct thermochromism, that originate from the specific properties which are observed only on the quantum dots around 1 nm. These results indicate that the size tuning of metal oxide quantum dots around 1 nm has a high potential for the creation of novel functional materials.
|
