Jump to main content
Jump to site search


Synthesis of vanadium phosphorus oxide catalysts promoted by iron-based ionic liquids and their catalytic performance in selective oxidation of n-butane

Author affiliations

Abstract

A series of vanadium phosphorus oxide (VPO) catalysts have been firstly synthesized using iron-based ionic liquids (ILs) as additives for selective oxidation of n-butane to maleic anhydride (MA) in this work. Meanwhile, VPO catalysts doped with inorganic iron salts were also prepared for comparison. The catalytic evaluation presented that iron-based IL modification remarkably enhanced the n-butane conversion and MA yield. A combination of techniques including XRD, Raman, TG, BET, SEM, TEM, XPS and H2-TPR was employed to investigate the intrinsic distinction among these catalysts. The results demonstrated that iron-based ILs notably change the morphology of the VPO catalyst from a plate-like structure into chrysanthemum-shape clusters, leading to a significant increase in the surface area of the catalyst, and largely promote the formation of (VO)2P2O7. All of these were closely associated with the synergistic effect existing between the structure-oriented cations and metal anions in ILs during the preparation of the VPO catalyst. In addition, the differences in the structure and redox properties of the catalysts studied were also discussed and compared with those doped with conventional inorganic salt additives.

Graphical abstract: Synthesis of vanadium phosphorus oxide catalysts promoted by iron-based ionic liquids and their catalytic performance in selective oxidation of n-butane

Back to tab navigation

Publication details

The article was received on 19 May 2018, accepted on 02 Aug 2018 and first published on 07 Aug 2018


Article type: Paper
DOI: 10.1039/C8CY01023D
Citation: Catal. Sci. Technol., 2018, Advance Article
  •   Request permissions

    Synthesis of vanadium phosphorus oxide catalysts promoted by iron-based ionic liquids and their catalytic performance in selective oxidation of n-butane

    F. Dai, Z. Li, X. Chen, B. He, R. Liu and S. Zhang, Catal. Sci. Technol., 2018, Advance Article , DOI: 10.1039/C8CY01023D

Search articles by author

Spotlight

Advertisements