Study on the preparation,characterization and its catalytic performance of Co3V2O8 catalyst

XU Ai-Ju; Zhao-Ri-Ge-Tu; Gu-Mei-Lin; Liu-Lian-Yun

Volume 37 Issue 02

Apr. 2009

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Article Navigation > Journal of Fuel Chemistry and Technology > 2009 > 37(02): 252-256

XU Ai-Ju, Zhao-Ri-Ge-Tu, Gu-Mei-Lin, Liu-Lian-Yun. Study on the preparation,characterization and its catalytic performance of Co3V2O8 catalyst[J]. Journal of Fuel Chemistry and Technology, 2009, 37(02): 252-256.

Citation:

XU Ai-Ju, Zhao-Ri-Ge-Tu, Gu-Mei-Lin, Liu-Lian-Yun. Study on the preparation,characterization and its catalytic performance of Co₃V₂O₈ catalyst[J]. Journal of Fuel Chemistry and Technology, 2009, 37(02): 252-256.

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Study on the preparation,characterization and its catalytic performance of Co₃V₂O₈ catalyst

1.
College of Chemistry &|Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China;

Funds: null

Received Date: 2008-05-21
Rev Recd Date: 2008-08-28
Publish Date: 2009-04-30

Abstract

Abstract

Co₃V₂O₈ catalyst was prepared by co-precipitation method and was characterized by XRD, BET, H₂-TPR, XPS and TEM in this paper. The catalytic performance for the oxidative dehydrogenation of propane to propylene has also been investigated. The results of H₂-TPR and XPS illustrated that the transformation of lattice oxygen to mobile oxygen species (non-complete reduction oxygen) might promote the oxidation-reduction reaction between different valence vanadium, which led to abundant non-complete reduction oxygen O^- and V⁴⁺species formation over the Co₃V₂O₈ catalyst surface. The active results showed that 49.45% and 33.74% propylene selectivity could be obtained at the reaction temperature of 425℃ and 475℃ respectively.
- Co₃V₂O₈,
- oxidative dehydrogenation (ODH),
- oxygen species