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Catalysis Letters

, Volume 135, Issue 1–2, pp 48–56 | Cite as

The One-Step Oxidation of Methanol to Dimethoxymethane over Nanostructure Vanadium-Based Catalysts

  • Heqin Guo
  • Debao Li
  • Dong Jiang
  • Wenhuai Li
  • Yuhan Sun
Article

Abstract

The VO x -TiO2 (VT-RC) and sulfated VO x -TiO2 (VTS-RC) catalysts were prepared by rapid combustion method (RC) and evaluated by the one-step oxidation of methanol to dimethoxymethane (DMM). The results showed that the VT-RC and VTS-RC catalysts were consisted of nano-particles and exhibited pore structure. Compared with the coprecipitated VO x -TiO2 (VT-CP) catalyst, the VT-RC catalyst showed more acidic sites and stronger reducibility. The addition of sulfate into VT catalyst further increased the number of acidic sites and had little effect on the reducibility. The catalytic test showed that the VT-RC catalyst exhibited high DMM selectivity (89.96% at 35% methanol conversion), which was further increased on VTS-RC catalyst (91.76% at 48% methanol conversion), and that was due to the larger number of acidic sites and stronger reducibility on these catalysts.

Graphical Abstract

Compared with the VT-CP catalyst, the VT-RC catalyst exhibited higher methanol conversion and DMM selectivity, which were further increased on VTS-RC catalyst.

Keywords

Nanostructure vanadium-based catalysts Rapid combustion method Methanol selective oxidation Dimethoxymethane 

Notes

Acknowledgments

This work was supported by the Key Project of Natural Science Foundation of China (No. 20603045) and the International Science & Technology Cooperation Project of Ministry of Science and Technology of China (No. 2007DFC60110).

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.State Key Laboratory of Coal Conversion, Institute of Coal ChemistryChinese Academy of SciencesTaiyuanPeople’s Republic of China
  2. 2.Graduate University of the Chinese Academy of SciencesBeijingPeople’s Republic of China

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