朱志庆, 卞炜. Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde[J]. 中国化学工程学报(英文版), 2008,16(6):895-900.
ZHU Zhiqing, BIAN Wei. Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde[J]. , 2008, 16(6): 895-900.
朱志庆, 卞炜. Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde[J]. 中国化学工程学报(英文版), 2008,16(6):895-900.DOI: 10.1016/S1004-9541(09)60013-6.
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.
Characterization of Tungsten-Based Catalyst Used for Selective Oxidation of Cyclopentene to Glutaraldehyde
/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
x
/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
3
crystallites and the oxidation of W(V) to W(VI) on the catalyst surface.Furthermore
NH
3
-temperature-programmed-desorption (NH
3
-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
x
/W-HMS catalyst calcined at 573 K after 14 h of reaction.
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相关作者
Xiao Liang
Xu Jiahui
Dai Jiawei
Qiu Yiyang
Meng Xueting
Lan Guojun
Sun Xiucheng
Cheng Zaizhe
相关机构
Xiangjiang Laboratory
Zhejiang Key Laboratory of Surface and Interface Science and Engineering for Catalysts, College of Chemical Engineering, Zhejiang University of Technology
New Energy Automotive Engineering Center, Tongji University
School of Automotive Studies, Tongji University
School of Mechanical Engineering, Tongji University