Structure and dynamics of ionic liquid/molecular liquid interfaces : functionality of interfaces under the application of potentials

2017 Fiscal Year Final Research Report

• Project/Area Number: 26248004
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Ouchi Yukio 東京工業大学, 物質理工学院, 教授 (60194081)
• Co-Investigator(Kenkyū-buntansha): 西 直哉 京都大学, 工学研究科, 准教授 (10372567)
• Co-Investigator(Renkei-kenkyūsha): MORITA Akihiro 東北大学, 理学研究科, 教授 (70252418) ; ISHIYAMA Tatsuya 富山大学, 工学研究科, 准教授 (10421364)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 表面・界面物性 / イオン液体 / 電気二重層

Outline of Final Research Achievements

Room-temperature ionic liquids (RTILs), which are salts in a liquid phase at room temperature, have attracted much interest as totally new fluids due to their unique nature, such as nonvolatility, nonflamability, high ion transportation, and wide electrochemical window. In this study, we have carried out a series of experiments, by using nonlinear vibrational spectroscopy, to elucidate interfacial structure and related functionality of RTILs from physico-chemical and/or molecular scientific view-points. We have successfully demonstrated that Stern layer may not exist at RTIL/electrolyte interfaces. We have also found the effect of the extension of electrochemistry window of ionic liquids by an addition of Li+ cations.

Free Research Field

物理化学