A Vibrational Spectroscopy Study of Ch3COOH, CH3COOD and (13)CD3COOH(D) Adsorption on Pt (111): 1. Surface Dimer Formation and Hydrogen Bonding
CALIFORNIA UNIV IRVINE DEPT OF CHEMISTRY
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Acetic acid CH3COOH,-CH3COOD and CD3COOHD adsorption on Pt111 at 168 K has been studied as a function of surface coverage with HREELS. At low acetic acid dosages dissociative adsorption occurs forming a surface acetate species. Further dissociative adsorption as COa, Oa and CHxa with x1-2 is observed for very low acetic acid dosages. The formation of HCOOa or CH3a from acetic acid adsorption is ruled out based on the absence of their characteristic vibrational modes. Molecular adsorption occurs at moderate acetic acid dosages. This mode corresponds to a well documented mode of the acetic acid dimer.
- Organic Chemistry