2016 Fiscal Year Final Research Report
Elucidation of ion distribution and molecular orientation at liquid/liquid interface by total reflection XAFS
| Project/Area Number |
15K13727
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Research Collaborator |
TANIDA Hajime 日産アーク, 研究員 (70301760)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 全反射XAFS / 液／液界面 / イオン水和 / 界面濃度 |
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| Outline of Final Research Achievements |
Total-reflection XAFS technique on the basis of detection of fluorescence X-ray was developed in order to know the hydration structure of ions distributed underneath liquid/liquid interface. This was applied to the adsorbed film of cationic surfactant (DTAB) at alkane/water interface by using newly constructed sample cell. One of the important results is the possibility to quantify the interfacial density of Br ion by K-edge absorption jump value in the XAFS spectrum. The improvement of S/N ratio in the EXAFS region is further needed to examine the hydration structure of Br ion at liquid/liquid interface.
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| Free Research Field |
界面物理化学
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