| Project/Area Number |
11450306
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
触媒・化学プロセス
|
|---|
| Research Institution | Okazaki National Research Institutes (2001)
University of Yamanashi (1999-2000) |
|---|
Principal Investigator |
KOMIYAMA Masaharu Okazaki National Research Institutes Professor, 分子科学研究所, 教授 (60150257)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
島口 たけみ 山梨大学, 教育人間科学部, 教務員 (40242622)
入山 裕 山梨大学, 教育人間科学部, 助教授 (90252006)
|
|---|
| Project Period (FY) |
1999 – 2001
|
| Project Status |
Completed (Fiscal Year 2001)
|
| Budget Amount *help |
¥10,600,000 (Direct Cost: ¥10,600,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2000: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1999: ¥7,700,000 (Direct Cost: ¥7,700,000)
|
|---|
| Keywords | scanning tunneling microsopy / STM / photocatalyst / titamium oxide / (110)face / 光査型トンネル顕微鏡 / 空間分解分光法 / 光励起 / トンネル発光 |
|---|
| Research Abstract |
An apparent local surface structural change at nanoscale was observed by scanning tunneling microscopy (STM) on a TiOs surface upon illumination of ultra-violet (UV) light. This phenomenon was reversible with UV light irradiation, and was interpreted to be due to the local accumulation of photoexcited states. This is the first real-space observation of inhomogeneous local charge distribution under UV light irradiation at nanoscale on a semiconductive photocatalyst surface, which may help identifying the photocatalytic active sites and elucidating the reaction mechanisms over them.
|
