Hydrogen adsorbed on platinum and nickel. Comparison with new incoherent inelastic neutron scattering data on some metal hydridocarbonyls

Abstract

Use is made of recently obtained neutron scattering data for a range of transition-metal hydridocarbonyls to reassign earlier spectroscopic work on hydrogen adsorbed on unsupported Pt and Ni powders. The predominant species on Ni surfaces is identified as (µ₃-H) whereas the evidence is in favour of (µ₂-H) and (µ₃-H) species on Pt black and Pt(111), respectively.