Citation: LAN Hai, XIAO Xi, YUAN Shan-Liang, ZHANG Biao, ZHOU Gui-Lin, JIANG Yi. MoFeO_x-Supported Catalysts for the Catalytic Conversion of Glycerol to Allyl Alcohol without External Hydrogen Donors[J]. Acta Physico-Chimica Sinica, ;2017, 33(11): 2301-2309. doi: 10.3866/PKU.WHXB201705261 shu

MoFeO_x-Supported Catalysts for the Catalytic Conversion of Glycerol to Allyl Alcohol without External Hydrogen Donors

LAN Hai ^1,2, ,
XIAO Xi ^1,2 ,
YUAN Shan-Liang ^1,2 ,
ZHANG Biao ¹ ,
ZHOU Gui-Lin ³ ,
JIANG Yi ¹

1.
Chengdu Institute of Organic Chemistry, Chinese Academy of Science, Chengdu 610041, P. R. China;
2.
University of Chinese Academy of Science, Beijing 100049, P. R. China;
3.
Chongqing Key Laboratory of Catalysis & Environmental New Materials, Department of Materials Science and Engineering, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, P. R. China

Received Date: 19 April 2017
Revised Date: 19 May 2017

Fund Project: The project was supported by CAS “light of West China” Program 2015

Supported MoFe/X (X=SnO₂, ZrO₂, CeO₂, TiO₂, CNTs (Carbon nano-tubes)), MgO and MoFe oxide catalysts were prepared for use in the catalytic conversion of glycerol to allyl alcohol. The prepared catalysts were characterized by XRD, BET, XPS, H₂-TPR, and NH₃-TPD. The results showed that Fe and Mo oxides with high chemical value (Fe³⁺ and Mo⁶⁺) predominated in MoFe/X MoFe oxide catalysts, which exhibited only weakly acidic properties. The applied supports with different physicochemical characteristics showed distinct interactions with Mo and Fe oxides, modifying the concentration of surface weak acid site, acid strength, and reducibility of MoFe/X oxide catalysts. The catalysts, based on their catalytic performance for glycerol conversion to allyl alcohol, can be ranked in terms of allyl alcohol yield as MoFe/TiO₂ > MoFe/CeO₂ > MoFe/ZrO₂ > MoFe/CNTs >> MoFe/SnO₂ > MoFe >> MoFe/MgO. Over the MoFe/TiO₂, a maximum allyl alcohol yield of 22.3% was from glycerol conversion of 83.4%, which had a selectivity of 26.7%. The MoFe/TiO₂ also showed higher catalytic stability than the MoFe/CeO₂, MoFe/ZrO₂, and MoFe/CNTs oxide catalysts. The glycerol conversion showed positive relationship with the surface weak acid concentration of MoFe and MoFe/X catalysts, while the allyl alcohol was produced over the redox sites (non-acid sites) of catalysts. With increasing reaction temperature, the glycerol conversion increased, while the allyl alcohol selectivity decreased, over the MoFe/X oxide catalysts.
- Fe-Mo oxide catalysts,
- TiO₂,
- Gas-solid heterogeneous catalysis,
- Glycerol,
- Allyl alcohol
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沈阳化工大学材料科学与工程学院沈阳 110142

MoFeOx-Supported Catalysts for the Catalytic Conversion of Glycerol to Allyl Alcohol without External Hydrogen Donors

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通讯作者: 陈斌, bchen63@163.com

MoFeO_x-Supported Catalysts for the Catalytic Conversion of Glycerol to Allyl Alcohol without External Hydrogen Donors