Study on the mechanism and functionality of the electric double layer of ionic liquid interfaces
Project/Area Number |
23350005
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Physical chemistry
|
Research Institution | Tokyo Institute of Technology (2013) Nagoya University (2011-2012) |
Principal Investigator |
OUCHI Yukio 東京工業大学, 理工学研究科, 教授 (60194081)
|
Co-Investigator(Renkei-kenkyūsha) |
MORITA Akihiro 東北大学, 大学院理学研究科, 教授 (70252418)
ISHIYAMA Tatsuya 富山大学, 理工学研究部, 講師 (10421364)
|
Project Period (FY) |
2011-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2013: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2012: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2011: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
|
Keywords | イオン液体 / 界面 / 電気二重層 / 表面・界面物性 |
Outline of Final Research Achievements |
Potential dependent electric double layer (EDL) structure of ionic liquids ([Cnmim]X (X=OTf, TFSA, PF6)) on a polycrystalline Pt, Au electrode has been studied by in-situ IR-visible sum frequency generation (SFG) spectroscopy and differential capacitance measurements. Within the electrochemical window (EW), potential dependent adsorption/desorption processes of the ions have been monitored. Both SFG and capacitance results indicate that significant hysteresis occurs during the adsorption/desorption processes on the Pt surface, while the EDL structure is highly reversible at the potential close to the limit of the EW. The unique hysteresis effect for ionic liquids on electrode surface should be seriously considered in electrochemical applications of ionic liquids.
|
Report
(4 results)
Research Products
(31 results)