jp0653095_si_001.pdf (24.7 kB)
Oxidation of Adsorbed CO on Pt(111) in CO-Saturated Perchloric Acid Aqueous Solutions: Simultaneous In Situ Time-Resolved Reflectance Spectroscopy and Second Harmonic Generation Studies
journal contribution
posted on 2006-10-26, 00:00 authored by Iosif Fromondi, Daniel A. SchersonSimultaneous 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.