Selective oxidation of cyclohexane over Co-APO-5:Effects of solvent and modification method on the catalytic performance

JING Bu-qin; LI Jun-fen; QIN Zhang-feng

Volume 44 Issue 10

Oct. 2016

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Article Navigation > Journal of Fuel Chemistry and Technology > 2016 > 44(10): 1249-1258

JING Bu-qin, LI Jun-fen, QIN Zhang-feng. Selective oxidation of cyclohexane over Co-APO-5:Effects of solvent and modification method on the catalytic performance[J]. Journal of Fuel Chemistry and Technology, 2016, 44(10): 1249-1258.

Citation:

JING Bu-qin, LI Jun-fen, QIN Zhang-feng. Selective oxidation of cyclohexane over Co-APO-5:Effects of solvent and modification method on the catalytic performance[J]. Journal of Fuel Chemistry and Technology, 2016, 44(10): 1249-1258.

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Selective oxidation of cyclohexane over Co-APO-5:Effects of solvent and modification method on the catalytic performance

JING Bu-qin^{1, 2, 3},
LI Jun-fen^{1
,
,},
QIN Zhang-feng¹

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
College of Chemistry and Environmental Engineering, Shanxi Datong University, Datong 037009, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds:

国家自然科学基金 21403268，21603254

山西省自然科学基金 201601D202014，2015021003

CAS/SAFEA创新团队的国际合作项目

More Information

Corresponding author: Tel: +86-351-4046976, Fax: +86-351-4041153, E-mail: lijunfen@sxicc.ac.cn
Received Date: 2016-04-19
Rev Recd Date: 2016-07-28

Available Online: 2021-01-23

Publish Date: 2016-10-10

Abstract

Abstract

A series of Co-APO-5 molecular sieves were prepared and used as the catalysts in the selective oxidation of cyclohexane; the effects of solvent and modification method on the catalytic performance of Co-APO-5 were investigated. The results illustrated that polar solvents containing π-bonds are favorable for the oxidation reaction and the conversion of cyclohexane increases with the increase of solvent polarity. The introduction of Si and F leads to a decrease of the tetrahedral cobalt content in the Co-APO-5 framework. However, introducing F can improve the crystallinity of Co-APO-5, whereas adding Si may promote the oxidation and reduction of cobalt species and then enhance the catalytic activity in oxidation. In general, the activity of Co-APO-5 catalysts is related to the content of tetrahedral cobalt in the framework, suggesting that the framework Co(Ⅱ) is probably the catalytically active species for the oxidation of cyclohexane.
- Co-APO-5,
- cyclohexane,
- selective oxidation,
- cyclohexanol,
- cyclohexanone,
- solvent effect,
- modification

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References(24)

References

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