Mechanistic study of electrocatalytic oxidation of formic acid at platinum in acidic solution by time-resolved surface-enhanced infrared absorption spectroscopy
Article Abstract:
The surface-enhanced infrared absorption spectroscopy (SEIRAS) combined with cyclic voltammetry or chronomperometry is used to investigate the kinetic and mechanistic aspects of the electrocatalytic oxidation of formic acid on a polycrystalline Pt surface at the molecular scale. The interplays of the involved processes affect the cyclic voltammogram (CV) and the sweep rate dependence of the CV is attributed to the slow kinetics of CO adsorption/oxidation and surface oxidation/reduction.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Application of in-situ attenuated total reflection-Fourier transform infrared spectroscopy for the understanding of complex reaction mechanism and kinetics: Formic acid oxidation on a Pt film electrode at elevated temperatures
Article Abstract:
A study conducted demonstrates the potential of in-situ Fourier transform infrared (FTIR) spectroscopy measurements in an attenuated total reflection configuration (ATR-FTIRS) for the evaluation of reaction pathways, elementary reaction steps, and their kinetics for formic acid electrooxidation on a Pt film electrode. With increasing temperature, the steady-state IR signal of C[O.sub.ad] increases, while that of formate decreases.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
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