Xue-bin Zhang, Kuo-yan Ma, Ling-hui Zhang, Ling-hui Zhang, Ya Dai, Shao-min Liu. Effect of Precipitation Method and Ce Doping on the Catalytic Activity of Copper Manganese Oxide Catalysts for CO Oxidation[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 97-102. doi: 10.1088/1674-0068/24/01/97-102
Citation: Xue-bin Zhang, Kuo-yan Ma, Ling-hui Zhang, Ling-hui Zhang, Ya Dai, Shao-min Liu. Effect of Precipitation Method and Ce Doping on the Catalytic Activity of Copper Manganese Oxide Catalysts for CO Oxidation[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 97-102. doi: 10.1088/1674-0068/24/01/97-102

Effect of Precipitation Method and Ce Doping on the Catalytic Activity of Copper Manganese Oxide Catalysts for CO Oxidation

doi: 10.1088/1674-0068/24/01/97-102
Funds:  This work was supported by the China National To-bacco Corporation (No.110200701007).
  • Received Date: 2010-10-25
  • The influence of Ce doping and the precipitation method on structural properties and the catalytic activity of copper manganese oxides for CO oxidation at ambient temperature have been investigated. The catalysts were characterized by means of the powder X-ray diffraction and N2 adsorption-desorption, the inductively coupled plasma atomic emission spectrometry, the temperature programmed reduction, diffuse reflectance UV-Vis spectra, and the X-ray photoelectron spectroscopy. It was found that after doping little amount of Ce in copper manganese oxide, CeO2 phase was highly dispersed and could prevent sintering and aggregating of the catalyst, the size of the catalytic material was decreased, the reducibility was enhanced, the specific surface area was increased and the formation of the active sites for the oxidation of CO was improved significantly. Therefore, the activity of the rare earth promoted catalyst was enhanced remarkably.
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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 Precipitation Method and Ce Doping on the Catalytic Activity of Copper Manganese Oxide Catalysts for CO Oxidation

doi: 10.1088/1674-0068/24/01/97-102
Funds:  This work was supported by the China National To-bacco Corporation (No.110200701007).

Abstract: The influence of Ce doping and the precipitation method on structural properties and the catalytic activity of copper manganese oxides for CO oxidation at ambient temperature have been investigated. The catalysts were characterized by means of the powder X-ray diffraction and N2 adsorption-desorption, the inductively coupled plasma atomic emission spectrometry, the temperature programmed reduction, diffuse reflectance UV-Vis spectra, and the X-ray photoelectron spectroscopy. It was found that after doping little amount of Ce in copper manganese oxide, CeO2 phase was highly dispersed and could prevent sintering and aggregating of the catalyst, the size of the catalytic material was decreased, the reducibility was enhanced, the specific surface area was increased and the formation of the active sites for the oxidation of CO was improved significantly. Therefore, the activity of the rare earth promoted catalyst was enhanced remarkably.

Xue-bin Zhang, Kuo-yan Ma, Ling-hui Zhang, Ling-hui Zhang, Ya Dai, Shao-min Liu. Effect of Precipitation Method and Ce Doping on the Catalytic Activity of Copper Manganese Oxide Catalysts for CO Oxidation[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 97-102. doi: 10.1088/1674-0068/24/01/97-102
Citation: Xue-bin Zhang, Kuo-yan Ma, Ling-hui Zhang, Ling-hui Zhang, Ya Dai, Shao-min Liu. Effect of Precipitation Method and Ce Doping on the Catalytic Activity of Copper Manganese Oxide Catalysts for CO Oxidation[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 97-102. doi: 10.1088/1674-0068/24/01/97-102

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