Journal
ELECTROCHEMISTRY
Volume 82, Issue 5, Pages 396-400Publisher
ELECTROCHEMICAL SOC JAPAN
DOI: 10.5796/electrochemistry.82.396
Keywords
In Situ Raman Spectroelectrochennistry; SERS; Water Molecules; Solid-liquid Interface
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Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan [25620146, 25286011]
- Grants-in-Aid for Scientific Research [25286011, 25620146] Funding Source: KAKEN
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Water libration on a silver electrode in various alkali hydroxides (MOH, M = Li, Na, K or Cs) aqueous solutions was examined through simultaneous experiments using surface-enhanced Raman scattering (SERS) and electrochemical analysis. This technique, referred to as SERS spectroelectrochemistry, reveals the Raman spectral band between 200 and 750 cm(-1), assignable to water libration on the electrode surface, through electrode potential scanning. The Raman intensity in this spectral band changes with the electrode potential. The variation in Raman intensity of water libration observed when scanning the electrode potential is discussed in terms of water molecules at the electrode interface in various alkali hydroxide aqueous solutions. (c) The Electrochemical Society of Japan, All rights reserved.
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