In Situ Surface-enhanced Raman Analysis of Water Libration on Silver Electrode in Various Alkali Hydroxide Aqueous Solutions
In Situ Surface-enhanced Raman Analysis of Water Libration on Silver Electrode in Various Alkali Hydroxide Aqueous Solutions
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DOI：
10.5796/electrochemistry.82.396
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发表时间：
2014-05
期刊：
影响因子：
2.5
通讯作者：
T. Itoh;T. Kajita;T. Maeda;A. Kasuya
中科院分区：
文献类型：
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作者：
T. Itoh;T. Kajita;T. Maeda;A. Kasuya
在电化学中，经常需要进行实验和理论研究，包括分析标准电极电位、双电层、扩散层、离子扩散系数和热力学参数。大量电化学数据的积累构成了当代电池、电容器和燃料电池等电化学设备研究的基础。水溶液中的双电层由溶剂化离子和水分子组成，另外，偶尔还会形成特定吸附的原子和接触吸附的原子。考虑水溶液中的双电层，水分子在双电层区域的动态运动是一个基本问题。为了研究这一问题，有必要在双层区域聚焦水分子的振动。水分子的振动包括平移振动、弯曲振动、伸缩振动等几种振动模式。特别是水分子的振动可能决定了双层的水结构。
In electrochemistry, it is often necessary to conduct both experimental and theoretical investigations, including analysis of the standard electrode potential, the electric double layer, the diffusion layer, the diffusion coefficient of the ion, and thermodynamic parameters. The accumulation of this vast array of electrochemical data forms the basis of contemporary research on electrochemical devices such as batteries, capacitors and fuel cells. The electric double layer in aqueous solutions composes solvated ions and water molecules, additionally and occasionally composes specifically adsorbed atom and contact adsorbed atoms. Considering the electric double layer in aqueous solution, one of the fundamental issue is the dynamical motion of water molecules at the double layer region. In order to investigate this issue, focusing the vibration of water molecules at the double layer region is necessary. The vibration of water molecules includes several vibrating modes; translation, libtation, bending vibration, stretching vibration and so on. Specially, the libration of water molecules may decide the water structure at the double layer.