TY - JOUR
T1 - Oxidation of adsorbed CO on Pt(111) in CO-saturated perchloric acid aqueous solutions
T2 - Simultaneous in situ time-resolved reflectance spectroscopy and second harmonic generation studies
AU - Fromondi, Iosif
AU - Scherson, Daniel Alberto
PY - 2006/10/26
Y1 - 2006/10/26
N2 - Simultaneous normalized differential reflectance spectroscopy (ΔR/R) and second harmonic generation (SHG) has been employed to follow, independently, OH and adsorbed CO (COads) on a single Pt(111) microfacet in CO-saturated aqueous perchloric acidic solutions during voltammetric cycles, leading to the oxidation of COads and subsequent readsorption of CO on the surface. The results obtained are consistent with the disruption of the √19 × √19R19.1° phase just prior to the oxidation of adsorbed CO.
AB - Simultaneous normalized differential reflectance spectroscopy (ΔR/R) and second harmonic generation (SHG) has been employed to follow, independently, OH and adsorbed CO (COads) on a single Pt(111) microfacet in CO-saturated aqueous perchloric acidic solutions during voltammetric cycles, leading to the oxidation of COads and subsequent readsorption of CO on the surface. The results obtained are consistent with the disruption of the √19 × √19R19.1° phase just prior to the oxidation of adsorbed CO.
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U2 - 10.1021/jp0653095
DO - 10.1021/jp0653095
M3 - Article
C2 - 17048880
AN - SCOPUS:33751303223
SN - 1520-6106
VL - 110
SP - 20749
EP - 20751
JO - Journal of Physical Chemistry B
JF - Journal of Physical Chemistry B
IS - 42
ER -