Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde

朱志庆; 卞炜

doi:10.1016/S1004-9541(09)60013-6

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Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde

Updated：2026-01-06

- Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde
- Chinese Journal of Chemical Engineering Vol. 16, Issue 6, Pages: 895-900(2008)
- Affiliations：
  
  Institute of Chemical Engineering, East China University of Science and Technology,Shanghai,China,200237
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(09)60013-6
  CLC：
- Published：2008
- Accepted：
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ZHU Zhiqing, BIAN Wei. Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde[J]. , 2008, 16(6): 895-900.
DOI：

ZHU Zhiqing, BIAN Wei. Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde[J]. , 2008, 16(6): 895-900. DOI： 10.1016/S1004-9541(09)60013-6.

摘要

Abstract

Tungsten-containing hexagonal mesoporous silica(W-HMS) supported tungsten oxide catalysts (WO

/W-HMS) was prepared for the selective oxidation of cyclopentene with aqueous hydrogen peroxide to glutaraldehyde.X-ray diffraction(XRD) results indicated that the crystal form of the active phase(tungsten oxide) of the WO

/W-HMS catalysts was dependent on the W loading and calcination temperature.X-ray photoelectron spectroscopy(XPS) analysis revealed that the dispersed tungsten oxides on the surface of W-HMS support consisted of a mixture of W(V) and W(VI).It was found that a high content of amorphous W species in(5+)oxidation state resulted in the high catalytic activity.When the Wloading was up to 12%(by mass) or the catalyst precursor was treated at temperature of 623 K

the catalytic activity decreased due to the presence of WO

crystallites and the oxidation of W(V) to W(VI) on the catalyst surface.Furthermore

-temperature-programmed-desorption (NH

-TPD) analysis showed that the effects of W loading and calcination temperature on the acidity of the catalysts were related to the catalytic activity.Ahigh selectivity of 80.2% for glutaraldehyde with a complete conversion of cyclopentene was obtained over 8% WO

/W-HMS catalyst calcined at 573 K after 14 h of reaction.

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