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      https://www.ias.ac.in/article/fulltext/jcsc/130/02/0016

    • Keywords

       

      Levulinic acid; formic acid; hydrogenation; γ-valerolactone; Cu/Fe2O3 mesoporous catalyst

    • Abstract

       

      Vapor phase hydrogenation of levulinic acid using formic acid as a hydrogen source has been conducted over ordered mesoporous Cu/Fe2O3 catalysts prepared by hard template method using mesoporous silica, SBA-15. X-ray diffraction result reveals the absence of copper peaks because of either highly dispersed state, or formation of a solid solution with iron oxides. The N2 sorption analysis and TEM results indicate the retainment of mesoporous nature in the samples. Among the catalysts tested, 10 (wt%) Cu/Fe2O3 seems to be an efficient catalyst to yield higher amounts of γ-valerolactone under hydrogen-free conditions. The results reveal the formation of spinel species, which gets reduced easily at a lower temperature (as evidenced from TPR studies), and as a consequence of this synergism, significant improvement in the catalytic performance for the synthesis of γ-valerolactone from levulinic acid and formic acid in presence of water has been achieved. The presence of water plays a crucial role in obtaining a higher yield of γ-valerolactone. This makes the catalyticsystem a viable methodology for hydrogenation of levulinic acid to get γ-valerolactone.

    • Author Affiliations

       

      MUPPALA ASHOKRAJU1 VARKOLU MOHAN1 2 KONDEBOINA MURALI1 MADDALURI VENKAT RAO1 BURRI DAVID RAJU1 KAMARAJU SEETHA RAMA RAO1

      1. Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
      2. Department of Chemical Engineering, IIT Hyderabad, Sangareddy, Telangana 502 285, India
    • Dates

       
  • Journal of Chemical Sciences | News

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