NO2 reduction with methane under lean conditions is studied as a part of a two-stage scheme where NO is first oxidized to NO2 over an oxidation catalyst and NO2 is subsequently reduced to N2 over a reduction catalyst. Pd supported on a sulfated monoclinic zirconia support was observed to have good activity for the reduction of NO2 with CH4 under lean conditions, giving N2 yields over 60% over a broad temperature range below 450 °C. Sulfate groups are shown to be thermally stable below the calcination temperature.
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Holmgreen, E.M., Yung, M.M. & Ozkan, U.S. Pd-supported on sulfated monoclinic zirconia for the reduction of NO2 with methane under lean conditions. Catal Lett 111, 19–26 (2006). https://doi.org/10.1007/s10562-006-0125-8
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DOI: https://doi.org/10.1007/s10562-006-0125-8