Oxidative coupling of methane by carbon dioxide: a highly C2 selective La2O3/ZnO catalyst |
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| Authors: | Changlin Chen Yide Xu Guangjin Li Xiexian Guo |
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| Affiliation: | (1) State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, PO Box 110, 116023 Dalian, PR China |
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| Abstract: | In the oxidative coupling of methane by carbon dioxide, La2O3/ZnO catalysts were found to have high C2 selectivity and good stability. The coupling selectivity on La2O3/ZnO is about 90%, which is much higher than that on pure La2O3 or ZnO. The consumption ratio of carbon dioxide to methane is approximately one. X-ray diffraction analysis reveals that the structural forms of the oxides are unchanged during the reaction. The reaction mechanism for C2 formation is discussed. |
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| Keywords: | carbon dioxide as the oxidant oxidative coupling of methane La2O3/ZnO |
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