Development of time-resolved and two-dimensional infrared spectroscopy for dynamic studies of solid/liquid interfaces

开发用于固/液界面动态研究的时间分辨和二维红外光谱

基本信息

项目摘要

We have developed a novel infrared spectroscopy technique that enables real-time monitoring of reactions and dynamics at solid/liquid interfaces. This technique uses three advanced infrared technologies, surface-enhanced infrared absorption spectroscopy (SEIRAS), time-resolved FT-IR,and two-dimensional correlation analysis (2D-IR).SEIRAS probes the interface without the interference from the bulk solution at a very high sensitivity. Owing to the high sensitivity of SEIRAS,high-speed spectral measurements with rapid-scan and step-scan FT-IR inferferometry becomes possible. We have succeeded for the first time to monitor electrochemical reactions with time-resolutions ranging from microseconds to milliseconds. By the success of the time-resolved spectra measurements, the molecular information obtained from the spectra became to be directly correlated with the kinetic information obtained from conventional electrochemical measurements.The time-resolved spectra collected during reactions a … More re often complex due to the overlapping of absorption bands of reactants and products. To differentiate spectral features of the species by using their characteristic time-dependent behaviors, 2D correlation analysis technique was employed. The basic concept of 2D-IR is somewhat analogous to that of 2D correlation technique used in NMR.It was found that 2D-IR accentuates certain dynamic information that is not readily seen in the one-dimensional time-resolved spectra. One of the important characters of 2D-IR is that the time-sequence of the intensity changes of the bands arising from different species can be determined. This character is very useful in the studies of reaction processes.We have demonstrated the utilities of the developed technique through studies of several electrochemical reactions. One of the most significant achievements in this project is the success in the analysis of the "double-layr" structure. We found that water molecules reorient at the Au (111) electrode surface depending upon the surface charge. The results are in good agreement with recent molecular dynamics simulations of the double-layr. Less
我们开发了一种新的红外光谱技术,能够实时监测固/液界面的反应和动力学。该技术采用了三种先进的红外技术,表面增强红外吸收光谱(SEIRAS),时间分辨FT-IR和二维相关分析(2D-IR),SEIRAS可以在不受本体溶液干扰的情况下以非常高的灵敏度探测界面。由于SEIRAS的高灵敏度,快速扫描和步进扫描FT-IR干涉法的高速光谱测量成为可能。我们首次成功地监测了电化学反应,时间分辨率从微秒到毫秒不等。通过时间分辨光谱测量的成功,从光谱获得的分子信息与从常规电化学测量获得的动力学信息直接相关。 ...更多信息 由于反应物和产物的吸收带的重叠,它们通常是复杂的。为了区分光谱特征的物种,利用其特征的时间依赖性的行为,二维相关分析技术。2D-IR的基本概念与NMR中使用的2D相关技术有些类似,发现2D-IR突出了某些在一维时间分辨谱中不容易看到的动力学信息。二维红外光谱的一个重要特点是可以确定不同物种谱带强度变化的时间顺序。这一特性在反应过程的研究中是非常有用的,我们已经通过对几个电化学反应的研究证明了这一技术的实用性。该项目最重要的成果之一是成功地分析了“双层”结构。我们发现,水分子在Au(111)电极表面重新取向取决于表面电荷。结果与最近的分子动力学模拟的双层。少

项目成果

期刊论文数量(28)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Y.Nishikawa and M.Osawa: "Characterization of Human Skin Surfaces by Surface-Enhanced Infrared Spectroscopy" Hyoumen Gijutsu (J.Surface Finishing Soc.Jpn). 45. 172-179 (1994)
Y.Nishikawa 和 M.Osawa:“通过表面增强红外光谱表征人体皮肤表面”Hyoumen Gijutsu (J.Surface Finishing Soc.Jpn)。
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M.Osawa, K.Ataka, and K.Yoshii: "Time-Resolved Infrared Study of Electrochemical Reactions" Electrode Processes VI,eds.A.Wiekowski and K.Itaya, Electrochemical Soc.Inc., Proceedings Volume. 96-8. 108-118 (1997)
M.Osawa、K.Ataka 和 K.Yoshii:“电化学反应的时间分辨红外研究”电极过程 VI,A.Wiekowski 和 K.Itaya 编辑,Electrochemical Soc.Inc.,论文集卷。
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N.Matsuda: "Surface-Assisted Photoinduced Reduction of p-Nitrothiophenol Self-Assembled Monolayer Adsorbed on a Smooth Silver Electrode" Chem.Lett.145-146 (1995)
N.Matsuda:“吸附在光滑银电极上的对硝基苯硫酚自组装单分子层的表面辅助光诱导还原”Chem.Lett.145-146 (1995)
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N.Matsuda, H.Sawaguchi, T.Matsue, M.Osawa and I.Uchida: "Surface-Assisted Photoinduced Reduction of p-Nitrothiophenol Self-Assembled Monolayr Adsorbed on a Smooth Silver Electrode" Chem.Lett.145-146 (1995)
N.Matsuda、H.Sawaguchi、T.Matsue、M.Osawa 和 I.Uchida:“吸附在光滑银电极上的对硝基苯硫酚自组装单层的表面辅助光诱导还原”Chem.Lett.145-146(1995 年)
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M.Osawa: "Charge-Transfer Resonance Raman Process in Furface-Enhanced Raman Scattering from p-Aminothiophenol Adsorbed on Silver : Herzberg-Teller Contribution" J.Phys.Chem.98. 12702-12707 (1994)
M.Osawa:“银上吸附的对氨基苯硫酚的表面增强拉曼散射中的电荷转移共振拉曼过程:Herzberg-Teller 贡献”J.Phys.Chem.98。
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OSAWA Masatoshi其他文献

OSAWA Masatoshi的其他文献

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{{ truncateString('OSAWA Masatoshi', 18)}}的其他基金

Theoretical and empirical research about keeping,management and preservation,and property of aprivate forest
私家林保管、管护、产权的理论与实证研究
  • 批准号:
    19K01423
  • 财政年份:
    2019
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Application of surface-enhanced infrared absorption spectroscopy to technologically important reactions at solid-liquid interfaces
表面增强红外吸收光谱在固液界面技术重要反应中的应用
  • 批准号:
    24550143
  • 财政年份:
    2012
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Efficiency of Public Water Area Development in the Presence of Compensation Rules for Loss of Fishers: Economic and Law Analysis
渔民损失补偿规则下公共水域开发效率:经济与法律分析
  • 批准号:
    21651014
  • 财政年份:
    2009
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Hydrogen evolution reaction catalyzed by molecules adsorbed on electrodes
电极上吸附的分子催化析氢反应
  • 批准号:
    21550124
  • 财政年份:
    2009
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Infrared Spectroscopic imaging of reactions at solid-liquid interfaces
固液界面反应的红外光谱成像
  • 批准号:
    18350038
  • 财政年份:
    2006
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Time-resolved vibrational spectroscopic study of electrode dynamics
电极动力学的时间分辨振动光谱研究
  • 批准号:
    14205121
  • 财政年份:
    2002
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Spectroscopic Approach to Electrode Dynamics
电极动力学的光谱方法
  • 批准号:
    12650803
  • 财政年份:
    2000
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Atomic and molecular scale structural analysis of electrode/electrolyte interfaces
电极/电解质界面的原子和分子尺度结构分析
  • 批准号:
    08454171
  • 财政年份:
    1996
  • 资助金额:
    $ 10.05万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

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Development of solid-liquid interface total-reflection x-ray spectroscopy with the sensitivity of a few nm and its application to track reactions at solid-liquid interfaces in a real-time manner
几纳米灵敏度固液界面全反射X射线光谱仪的研制及其在实时跟踪固液界面反应中的应用
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