Energy accommodation during hydrogen atom recombination on metal surfaces

Abstract

The recombination coefficient, γ^′_H and the energy accommodation coefficient, β_H were simultaneously determined for hydrogen atom recombination on Ag, Au, Co, Cu, W, Fe, Ni and Pt filaments. Values of β_H of 0.87, 0.65 and 0.43 were observed for Ag, Au and Cu, respectively, while values between 0.08 and 0.28 were observed for the other metals. In general, the relative values of β_H for these filaments were similar to the values of β previously determined for oxygen atom recombination.