The interaction of hydrogen and cyclopropane with the (110) surface of iridium

The interaction of cyclopropane with hydrogen and the residue resulting from the decomposition of the former on the reconstructed Ir(110)-(1×2) surface has been studied with thermal desorption mass spectrometry. Although hydrogen will not adsorb onto the saturated overlayer of dissociatively adsorbed cyclopropane, the preadsorption of hydrogen into the β₂ adstate inhibits the decomposition of cyclopropane on the surface. Desorption of the hydrogen from the saturated overlayer of the dissociatively adsorbed cyclopropane partially regenerates the reactivity of the surface.