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Citation: HOU Si-Cong, LIU Ling-Tao, KOU Yuan. Li-ZnO/La₂O₃ Catalyst for the Oxidation Coupling of Methane at Low Temperature[J]. Acta Physico-Chimica Sinica, ;2006, 22(08): 1040-1042. doi: 10.3866/PKU.WHXB20060826 shu

Li-ZnO/La₂O₃ Catalyst for the Oxidation Coupling of Methane at Low Temperature

1.
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, Green Chemistry Center of Peking University, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China

Received Date: 1 June 2006
Available Online: 7 July 2006

The oxidative coupling of methane (OCM) at low temperature was examined on Li- ZnO/La2O3 catalyst with w(Li)=2% and w(ZnO)=20%. CH4 conversion of 27.3% with C2 selectivity of 65.2% was obtained at 680 ℃ and the C2 yield reached 21.8% at 700 ℃ under reaction conditions. Raman and XPS results suggested that the low- temperature activity was related to the concentration of adsorbed oxygen species on the catalyst surface and La2O2CO3 was supposed to be responsible for the enhancement of C2 selectivity in OCM.
- Oxidative coupling of methane;Low temperature;Li- ZnO/La2O3;Adsorbed oxygen species;La2O2CO3
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沈阳化工大学材料科学与工程学院沈阳 110142

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Li-ZnO/La2O3 Catalyst for the Oxidation Coupling of Methane at Low Temperature

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通讯作者: 陈斌, bchen63@163.com

Li-ZnO/La₂O₃ Catalyst for the Oxidation Coupling of Methane at Low Temperature