Energies of Formation Reactions Measured for Adsorbates on Late Transition Metal Surfaces

Abstract

The energies of adsorbates containing H, N, C, O, and halogens that are of interest as intermediates, poisons, and promoters in catalytic reactions have been measured on well-defined single-crystal surfaces by equilibrium adsorption isotherms, temperature-programmed desorption (TPD), and single-crystal adsorption calorimetry (SCAC). Here we tabulate a large collection of those experimental adsorption energies which we consider to be particularly reliable based on reproducibility by other groups, comparisons to results for closely related systems, and/or reliability of other results reported by the same group. Specifically, we list the enthalpies and energies of 81 molecular and dissociative adsorption reactions that were measured on 26 different metal single-crystal faces of 12 different late transition metals, and we extract from these the standard enthalpies of formation of the adsorbates thus produced. These can serve as benchmarks for validating computational methods for estimating surface reaction en...