Time-resolved IR Absorption Study on Electron Transfer and Electrochemical Reactions by Ultra-fast Potential Jump Method
Project/Area Number |
19685006
|
Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Analytical chemistry
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Research Institution | Hokkaido University |
Principal Investigator |
YAMAKATA Akira Hokkaido University, 大学院・工学研究科, 准教授 (60321915)
|
Research Collaborator |
OSAWA Masatoshi 北海道大学, 触媒化学研究センター, 教授 (00108466)
|
Project Period (FY) |
2007 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥25,740,000 (Direct Cost: ¥19,800,000、Indirect Cost: ¥5,940,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2008: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2007: ¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
|
Keywords | 時間分解赤外分光 / 電極反応ダイナミクス / 電子移動反応 / 電気二重層 / 界面水分子の配向緩和 / 水和殻崩壊過程 / 親水・疎水相互作用 / 疎水性相互作用 / 反応ダイナミクス / 水和殻崩壊 / 疎水性水和殻 / 電子移動ダイナミクス / レーザー分光 |
Research Abstract |
For the full understanding of electrochemical reactions, structural changes of adsorbed reactants as well as water molecules around the surface should be studied in a time-resolved manner. We have found that the laser-induced orientation change of water molecules in the electric double layers causes a sudden change in electrode potentials. The detailed analysis of the potential jump revealed that water molecules on a hydrophobic surface are more flexible than on a hydrophilic surface. Structured water layers on a hydrophobic surface is readily destroyed by the forced approach of hydrophilic cations than by hydrophobic cations.
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Report
(4 results)
Research Products
(90 results)
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[Presentation] Structure of Water at Pt-Acid Interface2007
Author(s)
Osawa, M., Tsushima, M., Mogami, H., Samjeske, G. and Yamakata, A.
Organizer
International Conference on Electrified Interface 2007
Place of Presentation
SAHORO RESORT (Hokkaido), Japan
Year and Date
20070624-29
Related Report
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[Presentation] Structure of Water at Pt-Acid Interface2007
Author(s)
M.Osawa, M.Tsushima, H.Mogami, G.Samjeske, A.Yamakata
Organizer
International Conference on Electrified Interface 2007.
Place of Presentation
SAHORO RESORT (Hokkaido), Japan(招待講演)
Year and Date
20070624-20070629
Related Report
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