Structure and Dynamics at Solid/Solution Interphase

固体/溶液界面的结构和动力学

• 批准号: 11694047
• 负责人: UOSAKI Kohei
• 金额: $ 6.14万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11694047/
• 关键词: electrochemistry; electrodeposition; scanning tunneling microscopy; self-assembled monolayers; electron transfer dynamics; semiconductor electrode

This research was carried out to fully understand the reactions at solid/solution interface. First, the three dimensional structure of solid/solution interface was determined with atomic resolution by SXS, XSW and XAS using SOR as well as by STM and AFM.Second, interfacial reaction dynamics was studied by fast non-linear laser spectroscopy such as SHG and SFG.Some of the results are as follows.1. Structural analysis of foreign metal layers electrodeposited on metal and semiconductor Structures of sub-monolayer of foreign metals electrodeposited on metal and semiconductor electrodes were investigated by STM and AFM.Effects of substrate structure, adsorption of solution species, and hydration on the structure of the metal layers were examined in detail by surface X-ray scattering.2. Evolution of structure/order of functional organic layersIt was attempted to control the interaction and electron transfer characteristics between organic monolayer and solution species by changing solution pH and ionic strength. SHG and SFG systems were used to study the interfacial structure.

本研究旨在全面了解固/液界面反应。首先，利用SXS、XSW和XAS，结合SOR、STM和AFM，以原子级分辨率测量了固/液界面的三维结构;其次，利用快速非线性激光光谱技术，如SHG和SFG，研究了界面反应动力学，主要结果如下：1.金属和半导体上电沉积异质金属层的结构分析利用STM和AFM研究了金属和半导体电极上电沉积异质金属亚单层的结构，并利用表面X射线散射研究了基底结构、溶液吸附和水合作用对金属层结构的影响.功能有机膜结构/有序性的演化通过改变溶液pH值和离子强度，试图控制有机膜与溶液物种之间的相互作用和电子转移特性。采用SHG和SFG系统研究了界面结构。

项目成果

K. Sugihara: "Structure Dependence of the Surface pKa of Mercaptoundecanoic Acid SAM on Gold"Electrochem.. 67・12. 1172-1174 (1999)

K. Sugihara：“巯基十一烷酸 SAM 的表面 pKa 对金的结构依赖性”电化学.. 67・12（1999）

S.Nihonyanagi et al.: "Sum Frequency Generation(SFG)Study on the Molecular Structures at the Interfaces Between Quartz Modified with Amino-Terminated Self-Assembled Monolayer and Electolyte Solutions of Various pH and Ionic"Electrochim.Acta. (in press). (

S.Nihonyanagi 等：“和频发生（SFG）研究氨基末端自组装单层改性石英与各种 pH 和离子电解质溶液界面分子结构”Electrochim.Acta。

S. Ye: "Coverage Dependent Behavior of Redox Reaction Induced Structure Change and Mass Transport at an II- ferroceny1-1-undecanethiol Self-assembled Monolayer on a Gold electrode Studied by an in situ IRRAS/EQCM Combined System"PCCP. 1・15. 3653-3659 (199

S. Ye：“通过原位 IRRAS/EQCM 组合系统研究金电极上 II-二茂铁基 1-1-十一烷硫醇自组装单层的氧化还原反应诱导的结构变化和传质行为”PCCP 1・15。 .3653-3659 (199

H. Noguchi: "Visible Electroluminescence from n-Type Porous Silicon/Electrolyte Solution Interface : Time Dependent Electroluminescence Spectra"J. Electrochem. Soc.. 146. 22-27 (1999)

H. Noguchi：“n 型多孔硅/电解质溶液界面的可见电致发光：时间依赖性电致发光光谱”J。

S.Ye: "An Attenuated Total Reflection Fourier Transform Infrared Spectroscopy Study of the Adsorption of Organic Contaminants on a Hydrogen-terminated Si(111) Surface in Air"Appl.Phys.Lett.. 75・11. 1562-1564 (1999)

S.Ye：“空气中氢封端的 Si(111) 表面上有机污染物吸附的衰减全反射傅里叶变换红外光谱研究”Appl.Phys.Lett. 75・11 (1999)。