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Citation: Chen Hong-Shan, Niu Jian-Zhong, Xia Chun-Gu, Li Shu-Ben. Raman Spectroscopy Characterization of Na-W-Mn/SiO₂ Catalyst for Oxidative Coupling of Methane[J]. Acta Physico-Chimica Sinica, ;2000, 16(06): 543-546. doi: 10.3866/PKU.WHXB20000613 shu

Raman Spectroscopy Characterization of Na-W-Mn/SiO₂ Catalyst for Oxidative Coupling of Methane

1.
State Key Lanoratory for Oxo Synthesis and Selective Oxidation,Lanzhou Institute of Chemical Physics,Lanzhou 730000

Received Date: 17 September 1999
Available Online: 15 June 2000

By calcinating commercial silica gel at 1500℃or adding Na2C2O4 and then calcinating at 850℃,α-cristobalite was formed. On the basis of the vibration spectroscopy of silica support, Na-W-Mn/SiO2 catalyst was characterized by Raman spectroscopy. The results show that the structure of support and the interaction among metal components have significant effect on the dispersion and the structure of metal sites, and the tetrahedrally coordinated [WO4] formed on α-cristobalite surface is the most possible site of methane activation with high C2 selectivity.
- Na-W-Mn/SiO₂ Catalyst,
- Raman Characterization,
- Oxidative Coupling of Methane
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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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Raman Spectroscopy Characterization of Na-W-Mn/SiO2 Catalyst for Oxidative Coupling of Methane

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通讯作者: 陈斌, bchen63@163.com

Raman Spectroscopy Characterization of Na-W-Mn/SiO₂ Catalyst for Oxidative Coupling of Methane