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Citation: ZHOU Wei-Hua, XIAO De-Hai, LI Jing, YANG Xiang-Guang, WU Yue. Catalytic Properties of Ni-Ce-O/ZrO₂ in Low-Temperature Methane Combustion[J]. Chinese Journal of Applied Chemistry, ;2006, 23(2): 131-135. shu

Catalytic Properties of Ni-Ce-O/ZrO₂ in Low-Temperature Methane Combustion

ZHOU Wei-Hua ^a,b ,
XIAO De-Hai ^a ,
LI Jing ^a ,
YANG Xiang-Guang ^a,, ,
WU Yue ^a

1.
a Changchun institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
2.
b Graduate School of the Chinese Academy of Sciences, Beijing

Corresponding author: YANG Xiang-Guang,
Received Date: 12 April 2005
Available Online: 12 June 2005
Fund Project: 国家自然科学基金(20177022) (20177022)国家重点基础研究发展计划(2004CB719502) (2004CB719502)

A series of Ni_1-x-Ce_x-O(x=0.00~1.0) were prepared by the citrate method and characterized by means of XRD,H₂-TPR technique and BET surface area measurement.It was found that the addition of CeO₂ facilitated the reduction of NiO and increased the surface areas of the Ni_1-x-Ce_x-O oxides,which correlated with the catalytic properties of the Ni_1-x-Ce_x-O oxides for methane combustion.The catalytic activities of the Ni_1-x-Ce_x-O oxides obviously increased with the increase of the Ce content and reached a maximum at x=0.3. A series of the Ni_0.7-Ce_0.3-O/ZrO₂ catalysts were also prepared by the citrate method.The Ni_0.7-Ce_0.3-O/ZrO₂ with a mass ratio=1:1 gave the highest catalytic activity,under the catalysis of which the temperature of methane complete oxidation into CO₂ decreased from 530℃ to 480℃.
- methane,
- catalytic combustion,
- NiO,
- CeO₂
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Catalytic Properties of Ni-Ce-O/ZrO2 in Low-Temperature Methane Combustion

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Catalytic Properties of Ni-Ce-O/ZrO₂ in Low-Temperature Methane Combustion