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Partial oxidation of methane to syngas(POM)over Rh/SiO_2 catalyst was investigated using in-situ FT-IR.When methane interacted with 1.0wt%Rh/SiO_2 catalyst,it was dissociated to adsorbed hydrogen and CH_x species.The adsorbed hydrogen atoms were transferred to SiO_2 surface by“spill-over”and reacted with lattice oxygen to form surface -OH species. POM mechanism was investigated over Rh/SiO_2 catalyst using in-situ FT-IR.It was found that CO_2 was formed before CO could be detected when CH_4 and O_2 were introduced over the preoxidized Rh/SiO_2 catalyst,whereas CO was detected before CO_2 was formed over the prereduced Rh/SiO_2 catalyst.
Partial oxidation of methane to syngas (POM) over Rh / SiO 2 catalyst was investigated using in-situ FT-IR. Wang methane interacted with 1.0 wt% Rh / SiO 2 catalyst, it was dissociated to adsorbed hydrogen and CH x species. were transferred to SiO_2 surface by “spill-over” and reacted with lattice oxygen to form surface-OH species. POM mechanism was investigated over Rh / SiO_2 catalyst using in-situ FT-IR.It was found that CO_2 was formed before CO could be detected when CH_4 and O_2 were introduced over the preoxidized Rh / SiO_2 catalyst, whereas CO was detected before CO_2 was formed over the prereduced Rh / SiO_2 catalyst.