Catalytic Performance of CeO2/ZnO Nanocatalysts on the Oxidative Coupling of Methane with Carbon Dio

• 作 者: Yongjun He Blun Yang Haimin Pa
• 机 构: Department of Chemical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
• 出 处: 天然气化学（英文版）
• 发表日期: 2004年3期
• 关键词: Carbon Dioxide catalytic performance oxidative coupling of methane homogeneous p

CeO2/ZnO nanocatalysts were prepared from the coupling route of homogeneous precipitation with microemulsion and the impregnation method. The catalytic performance of these two kinds of catalysts on the oxidative coupling of methane with carbon dioxide was tested and compared; the fractal behavior of the nanocatalysts was analyzed using fractal theory. The CeO2/ZnO nanocatalysts had much higher activity than the catalysts prepared by impregnation method. There was no regular relationship between the average size of CeO2/ZnO nanocatalysts and their catalytic performance; however, the conversion of methane increased with the increase of the fractal dimension of CeO2/ZnO nanocatalysts.