Low temperature CO oxidation over the ceria oxide catalysts doped with Fe, Ni and Cu

LI Shu-na; SHI Qi; LI Xiao-jun; FANG Zhen-hua; SUN Ping; ZHOU Yue-hua; ZHANG Xing-mei; YANG Xiao-hui

Volume 45 Issue 6

Jun. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(6): 707-713

LI Shu-na, SHI Qi, LI Xiao-jun, FANG Zhen-hua, SUN Ping, ZHOU Yue-hua, ZHANG Xing-mei, YANG Xiao-hui. Low temperature CO oxidation over the ceria oxide catalysts doped with Fe, Ni and Cu[J]. Journal of Fuel Chemistry and Technology, 2017, 45(6): 707-713.

Citation:

LI Shu-na, SHI Qi, LI Xiao-jun, FANG Zhen-hua, SUN Ping, ZHOU Yue-hua, ZHANG Xing-mei, YANG Xiao-hui. Low temperature CO oxidation over the ceria oxide catalysts doped with Fe, Ni and Cu[J]. Journal of Fuel Chemistry and Technology, 2017, 45(6): 707-713.

Citation:

LI Shu-na, SHI Qi, LI Xiao-jun, FANG Zhen-hua, SUN Ping, ZHOU Yue-hua, ZHANG Xing-mei, YANG Xiao-hui. Low temperature CO oxidation over the ceria oxide catalysts doped with Fe, Ni and Cu[J]. Journal of Fuel Chemistry and Technology, 2017, 45(6): 707-713.

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Low temperature CO oxidation over the ceria oxide catalysts doped with Fe, Ni and Cu

School of Chemical Engineering, Xi'an University, The Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, Xi'an 710065, China

Funds:

the National Natural Science Foundation of China 21603173

the Natural Science Foundation of Shaanxi Province of China 2016JQ2030

the Natural Science Foundation of Shaanxi Province of China 2016JQ5110

the Natural Science Foundation of Shaanxi Province of China 2016JM2015

the Special Natural Science Foundation of Science and Technology Bureau of Xi'an City CXY1531WL03

the Special Natural Science Foundation of Science and Technology Bureau of Xi'an City CXY1531WL22

the Special Natural Science Foundation of Science and Technology Bureau of Xi'an City CXY1531WL21

the Special Natural Science Foundation of Science and Technology Bureau of Xi'an City CXY1531WL26

More Information

Corresponding author: LI Shu-na, Tel:029-88269385, E-mail:lishuna165@126.com; YANG Xiao-hui, E-mail:yangxh1127@aliyun.com
Received Date: 2017-01-06
Rev Recd Date: 2017-04-11

Available Online: 2021-01-23

Publish Date: 2017-06-10

Abstract

Abstract

A series of ceria oxide catalysts doped with Fe, Ni and Cu were prepared by hydrothermal method and they characterized by N₂ sorption, XRD, H₂-TPR, Raman spectra and XPS; the relationship between the structure of Ce-M mixed oxides and their catalytic performance in low temperature CO oxidation were then investigated. The results reveal that the incorporation of Fe, Ni and Cu metal ions into CeO₂ can remarkably increase the amount of oxygen vacancies in the doped samples, which is beneficial to the migration of the lattice oxygen; as a result, the doped Ce-M mixed oxides exhibit much higher reducibility and catalytic activity than the pure CeO₂. Among them, the CeCu catalyst with most oxygen vacancies exhibits the highest activity in CO oxidation, with a complete CO conversion at 130℃; over CeNi catalyst, in the next, a complete CO conversion is obtained at 180℃. On the contrary, CeFe catalyst is least active and the conversion of CO is only 92% at 200℃.
- doped ceria,
- iron oxide,
- nickel oxide,
- copper oxide,
- oxygen vacancies,
- CO oxidation

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References(26)

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