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Citation: SONG Yi-Bing, YU Lina, HAO Zhi-Feng, HUANG Li-Hua, LIN Wei-Ming. Relationship Between Preparation Method of Catalyst and Catalytic Activity in the Reaction of Carbon Dioxide Reforming of Methane[J]. Chinese Journal of Applied Chemistry, ;2001, 18(11): 903-907. shu

Relationship Between Preparation Method of Catalyst and Catalytic Activity in the Reaction of Carbon Dioxide Reforming of Methane

1.
a Department of Chemistry, Shantou University, Shantou 515063;
2.
b Department of Chemical Engineering, South China University of Technology, Guangzhou

Received Date: 29 March 2001
Available Online: 16 July 2001
Fund Project: 广东省自然科学基金(980569) (980569)

The activity of Ni-Ce/γ-Al₂O₃ catalyst prepared by impregnation and coprecipitation was evaluated in a fixed bed continuous-flow quartz reactor. DTA-TGA, TPR, XRD and XPS have been used to characterize the catalysts. All the catalysts exhibited high conversion activity of CH₄, indicating that methane can be activated by nickel species dispersed on the surface of catalysts. In the other hand, the freshly formed nickel species from NiAl₂O₄ pretreated and reduced at high temperature, is very active for CO₂ conversion. Thus, the catalyst prepared by coprecipitation reveals higher CO₂ conversion and CO yield than the catalyst prepared by impregnation.
- methane,
- syngas,
- Ni-Ce/γ-Al₂O₃,
- preparation method,
- catalytic activity,
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