01613nas a2200205   4500008004100000245016200041210006900203260000800272300001200280490000700292520082600299100001901125700002301144700002001167700002801187700002601215700002101241700002101262856012401283       2016                        eng d00aEffects of thermal treatment of ZnO-ZnCr2O4 catalyst on the particle size and product selectivity in dehydrocyclization of crude glycerol and ethylenediamine0 aEffects of thermal treatment of ZnOZnCr2O4 catalyst on the parti  cSEP  a602-6090 v573 aThe ZnO-ZnCr2O4 (Zn-Cr-O) sample obtained by decomposition of Zn-Cr hydrotalcite precursor was subjected to the thermal treatment at different temperatures and the physico-chemical properties of the Zn-Cr-O system were compared with its catalytic behavior in dehydrocyclization of crude glycerol and ethylenediamine (EDA). Upon high temperature treatment of Zn-Cr-O the Cr6+ ions underwent autoreduction to form stable Cr3+ species and the particle size of both ZnO and ZnCr2O4 increased dramatically. Thermal effect did not influence the intermolecular cyclisation of EDA to form pyrazine. By contrast, an inversely proportional dependence was found between the rate of formation of 2-methylpyrazine and the particle size of Zn-Cr-O whereas the rate of 2-pyrazinylmethanol was directly proportional to the particle size.1 aSarkari, Reema1 aKrishna, Vankudoth1 aSudhakar, Medak1 aRao, Tumula, Venkateshw1 aPadmasri, Aytam, Hari1 aSrinivas, Darbha1 aVenugopal, Akula  uhttps://library.ncl.res.in/content/effects-thermal-treatment-zno-zncr2o4-catalyst-particle-size-and-product-selectivity