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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/131/08/0086

    • Keywords

       

      Dimethyl carbonate; methanol; carbon dioxide; 2-cyano pyridine; acid-base property

    • Abstract

       

      The present work is aimed to produce dimethyl carbonate by coupling of CH3OH and CO2 with 2-cyanopyridine over ZnO–CeO2 catalysts prepared by co-precipitation method. These catalysts were characterized by XRD, TEM, UV-Vis DRS, BET surface area, CO2 and NH3-TPD techniques and applied forthe titled reaction. Among the investigated catalysts 10ZnO–90CeO2 catalyst with CeO2 crystallite size 8.0nm exhibited 96% conversion of methanol with 99% selectivity to dimethyl carbonate. The superior catalytic activity is a unified effect of crystalline size of CeO2 and presence of an optimum number of acidic and basic sites. This protocol offers enhanced conversion of methanol with the simultaneous conversion of 2-cyanopyridine into 2-picolinamide by removing water molecules formed in the reaction.

    • Author Affiliations

       

      PRATHAP CHALLA1 2 VENKATA RAO M2 NAGAIAH P2 NAGU A1 2 DAVID RAJU B1 2 RAMA RAO K S1 2

      1. CSIR- Academy of Scientific and Innovative Research (CSIR-AcSIR), New Delhi, India
      2. Catalysis and Fine Chemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500 007, India

    • Dates

       
      Published
      August 2019
      Manuscript received
      2 March 2019
      Manuscript revised
      20 May 2019
      Accepted
      21 May 2019

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