Loading…

Probing electronic and vibrational properties at the electrochemical interface using SFG spectroscopy: Methanol electro-oxidation on Pt(1 1 0)

We report the study of methanol electro-oxidation on Pt(1 1 0) using infrared–visible sum-frequency generation (SFG) vibrational spectroscopy. The use of this technique enables to probe the vibrational and electronic properties of the interface simultaneously in situ. We have investigated the vibrat...

Full description

Saved in:
Bibliographic Details
Published in:Chemical physics letters 2005-02, Vol.403 (4), p.324-328
Main Authors: Vidal, F., Busson, B., Tadjeddine, A.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report the study of methanol electro-oxidation on Pt(1 1 0) using infrared–visible sum-frequency generation (SFG) vibrational spectroscopy. The use of this technique enables to probe the vibrational and electronic properties of the interface simultaneously in situ. We have investigated the vibrational properties of the interface in the CO ads internal stretch spectral region (1700–2150 cm −1) over a wide range of potentials. The analysis of the evolution of the C–O stretch line shape, which is related to the interference between the vibrational and electronic parts of the non-linear response, with the potential allows us to show that the onset of bulk methanol oxidation corresponds to the transition from a negatively to a positively charged surface.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2005.01.026