期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 20, 期 17, 页码 11554-11558出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cp00615f
关键词
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资金
- National Natural Science Foundation of China [21373166, 21621091]
- Thousand Youth Talents Program of China
Understanding the structures of electrochemical interfaces at the atomic level is key to developing efficient electrochemical cells for energy storage and conversion. Spectroscopic techniques have been widely used to investigate the structures and vibrational properties of the interfaces. The interpretation of these spectra is however not straightforward. In this work, density functional theory based molecular dynamics simulations were performed to study the vibrational properties of the Pt(111)- and Au(111)-water interfaces. It was found that the specific adsorption of some surface water on Pt(111) leads to a partial charge transfer to the metal, and strong hydrogen bonding with neighbouring water molecules, which resolves the interpretation of the elusive O-H stretching peak at around 3000 cm(-1) observed in some experiments.
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