Controlled Surface Structure for In Situ ATR-FTIRS Studies Using Preferentially Shaped Pt Nanocrystals

We explored the possibility of using preferentially shaped Pt nanocrystals deposited on a gold film for in situ Fourier transform infrared spectroscopy (FTIRS) studies in an attenuated total reflection (ATR) configuration as Pt electrodes with a well-defined ordered surface structure. Hydrogen region voltammograms as well as characteristic bands of adsorbed CO and (bi) sulfate resolve surface structure-specific features consistent with previously published infrared reflection absorption spectroscopic studies on similarly structured low index single crystalline Pt electrodes, supporting the validity of this approach.