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Citation: BULGAN G., LIANG Shu-Hui, TENG Fei, YAO Wen-Qing, ZHU Yong-Fa. Effect of Ce Doping on the Structure and Catalytic Activity of La_1-xCe_xCoO₃ Catalysts[J]. Acta Physico-Chimica Sinica, ;2008, 24(02): 205-210. doi: 10.3866/PKU.WHXB20080205 shu

Effect of Ce Doping on the Structure and Catalytic Activity of La_1-xCe_xCoO₃ Catalysts

1.
Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China

Received Date: 2 July 2007
Available Online: 18 December 2007

La1-xCexCoO3 (x=0, 0.05, 0.1, 0.2, 0.3) catalysts were synthesized by amorphous heteronuclear complexing method. The catalysts were characterized by XRD, TEM, and N2 adsorption isotherms. The cataluminescence (CTL) response to CO and the activities in the oxidation of CO over the catalysts were investigated. Results showed that La1-xCeyφx-yCoO3 perovskite with lanthanumdeficiency, CeO2 and CO3O4 phases were formed after La3+ was substituted with Ce4+ in the catalyst. Compared with LaCoO3 catalyst, the catalyst with x=0.1 showed the highest activity for CO oxidation (T100%=290 ℃). The CTL result is well consistent with the order of CO catalytic activity over La1-xCexCoO3 catalysts.
- Amorphous heteronuclear complex; Perovskite type catalyst; Ce dopant; Cataluminescence; Catalytic oxidation; CO
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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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Effect of Ce Doping on the Structure and Catalytic Activity of La1-xCexCoO3 Catalysts

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通讯作者: 陈斌, bchen63@163.com

Effect of Ce Doping on the Structure and Catalytic Activity of La_1-xCe_xCoO₃ Catalysts