Photoinduced-reaction dynamics of halogenated alkanes on iron oxide surfaces: CH3I on Fe3O4(111)-(2*2)

The adsorption, thermal chemistry, and photoreaction dynamics of methyl iodide on the (2*2) magnetite termination of natural single-crystal hematite are investigated by various methods, which include temperature-programmed desorption. The methyl iodide thermal desorption spectra, taken after dosing the (2*2) surface at 100K with CH3I, show a multiple-peak coverage-dependent behavior, consistent with the presence of several distinct adsorbed phases.