2011 Fiscal Year Final Research Report
Formation of Nanostructures at Ionic Liquid Electrochemical Interfaces
| Project/Area Number |
21681012
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanostructural science
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| Research Institution | Kumamoto University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 表面 / 界面ナノ構造 / 電気化学 / 走査型プローブ顕微鏡 |
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| Research Abstract |
In the present study, we focused on electrochemistry of ionic liquids to understand adsorption of anions and cations on Au electrode surface at nano-scale level. The influence of the alkyl chain length of the bis(trifluoromethylsulfonyl) imide-based ionic liquids alkyl-methylimidazolium, cation on the potential window was investigated with low-index Au single crystal electrodes by cyclic voltammetry. The potential window of the electrical double-layer region was found to depend on the crystallographic orientation of Au, which indicated a difference in the strength of cation adsorption on the Au substrate. EC-STM revealed that molecular adlayers of phthalocyanine and polycyclic aromatic hydrocarbons on Au(111) with clear molecular resolutions.
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