[1] Jiang Feng, Xiao Guomin,. Influences of process parameters on solvent-free toluene oxidationover Au/γ-MnO2 catalyst [J]. Journal of Southeast University (English Edition), 2014, 30 (3): 387-390. [doi:10.3969/j.issn.1003-7985.2014.03.024]

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Influences of process parameters on solvent-free toluene oxidationover Au/γ-MnO₂ catalyst()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

30

Issue:

2014 3

Page:

387-390

Research Field:

Chemistry and Chemical Engineering

Publishing date:

2014-09-30

Info

Title:

Influences of process parameters on solvent-free toluene oxidationover Au/γ-MnO₂ catalyst

Author(s):

Jiang Feng;  Xiao Guomin

School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China

Keywords:

nano-gold;  manganese dioxide;  toluene oxidation;  solvent-free

PACS:

TQ139.2

DOI:

10.3969/j.issn.1003-7985.2014.03.024

Abstract:

γ-MnO₂ nanorobs and Au/γ-MnO₂ catalysts were synthesized and characterized by the X-ray powder diffraction(XRD), the scanning electron microscope(SEM), and transmission electron microscope(TEM). The characterizations show that Au particles are well dispersed on the surface of γ-MnO₂ nanorobs with a particle size of about 10 nm. The catalytic performance is evaluated in solvent-free toluene oxidation with oxygen. The influences of several process parameters such as reaction time, reaction temperature, initial oxygen pressure and catalyst amounts on the catalytic performance are studied. Catalytic results reveal that Au/γ-MnO₂ catalyst has a unique selectivity to benzaldehyde and all these factors greatly influence the conversion of toluene and selectivity of bezaldehyde, benzoic acid and benzyl benzoate. However, these factors have slight influence on the selectivity of benzyl alcohol.

References:

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Memo

Memo:

Biographies: Jiang Feng(1987—), femal, graduate; Xiao guomin(corresponding author), male, doctor, professor, xiaogm@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.21276050), the Scientific Research Foundation of Graduate School of Southeast University(No.YBJJ1341).
Citation: Jiang Feng, Xiao Guomin.Influences of process parameters on solvent-free toluene oxidation over Au/γ-MnO₂ catalyst[J].Journal of Southeast University(English Edition), 2014, 30(3):387-390.[doi:10.3969/j.issn.1003-7985.2014.03.024]

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