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.

这项研究是为了全面了解固/溶液界面上的反应。首先，利用SXS、XSW和XAS以及扫描隧道显微镜和原子力显微镜对固/溶液界面的三维结构进行了原子分辨测定；其次，利用快速非线性激光光谱如倍频和扫描电子显微镜等研究了固/溶液界面的反应动力学。用扫描隧道显微镜和原子力显微镜研究了在金属和半导体电极上电沉积的异质金属层的结构，以及在金属和半导体电极上电沉积的异质金属亚单分子膜的半导体结构，并用表面X射线散射详细考察了衬底结构、溶液物种的吸附和水合作用对金属层结构的影响。通过改变溶液的pH和离子强度来控制有机单分子膜与溶液物种之间的相互作用和电子传递特性。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)。