Partial Oxidation of Propylene over as Prepared and Acid Enriched Bi2Mo1-xWxO6 System

DOI: https://doi.org/10.9767/bcrec.12.2.702.197-205
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Submitted: 16-09-2016
Published: 01-08-2017
Section: Original Research Articles

The compounds Bi2Mo1-xWxO6 (x = 0.0, 0.2, and 0.4) were obtained through a Citrate sol-gel process. Thermogravimetric differential thermal analysis (TG-DTA), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) techniques were used for characterization. Reitveld refinement of the XRD data confirmed the crystal structure of all the compositions to be orthorhombic, having Pca21 space group. XPS studies indicated the presence of +6 as well as +4 oxidation state for Mo. Surface acid enrichment of all the catalysts was done and monitored by NH3-TPD studies. Partial oxidation of propylene was studied over all the compounds. The W doping was found to increase the catalytic activity. Moreover, as-prepared catalysts and acid enriched catalysts were compared for their catalytic activity wherein, acid-enriched catalysts showed the improved conversion of propylene without hampering the product selectivity profile. Copyright © 2017 BCREC Group. All rights reserved

Received: 16th September 2016; Revised: 1st December 2016; Accepted: 9th March 2017

How to Cite: Parab, S.S., Naik, S.J., Salker, A.V. (2017). Partial Oxidation of Propylene over as Prepared and Acid Enriched Bi2Mo1-xWxO6 System. Bulletin of Chemical Reaction Engineering & Catalysis, 12 (2): 197-205 (doi:10.9767/bcrec.12.2.702.197-205)

Permalink/DOI: http://dx.doi.org/10.9767/bcrec.12.2.702.197-205

Keywords

Ammonia TPD; Bi2Mo1-xWxO6; Partial oxidation; Structural studies

  1. Shambhu Sakharam Parab 
    Department of Chemistry, Goa University, Goa 403 206 , India

    Department of Chemistry, Goa University, Goa.

    Research Student (UGC-BSR SRF)

  2. S.J. Naik 
    Department of Chemistry, Goa University, Goa 403 206 , India
  3. A.V. Salker 
    Department of Chemistry, Goa University, Goa 403 206 , India

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