Methane Combustion Over Fe, Co and Ni Modified Manganese Oxide Catalysts |
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Authors: | Xiang Wang and You-chang Xie |
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Affiliation: | (1) Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China; |
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Abstract: | Fe-Mn, Co-Mn and Ni-Mn composite oxide catalysts based on high specific surface area MnO2 precursor were prepared and applied to catalytic combustion of CH4. Results were compared with that of unmodified MnOx and 1wt.% Pd/-Al2O3. Below 450°C, manganese oxide catalysts show higher activity than Pd/-Al2O3, while the modified manganese oxide catalysts exhibit higher activity than the unmodified one below 420°C. All catalysts were characterized by means of N2-BET, XRD, TG-DTA and H2-TPR. Due to the interaction between Fe, Co or Ni oxides and manganese oxide, the activity of the oxygen species of the modified catalysts is improved, which leads to the increase of their CH4 combustion activity. |
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Keywords: | CH4 combustion manganese oxide catalysts Fe Co and Ni additives |
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