Res Chem Intermed (2018) 44:6151–6168 https://doi.org/10.1007/s11164-018-3482-1 Selective allylic oxidation of cyclohexene over a novel nanostructured CeO –Sm O /SiO catalyst 2 2 3 2 1,2 1,3 1,2 • • • Bolla Govinda Rao Putla Sudarsanam P. R. G. Nallappareddy 1 1,2 • • M. Yugandhar Reddy T. Venkateshwar Rao 1,2 Benjaram M. Reddy Received: 24 January 2018 / Accepted: 21 May 2018 / Published online: 29 May 2018 Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract Selective allylic oxidation of cyclohexene was investigated over nanostruc- tured CeO /SiO and CeO –Sm O /SiO catalysts synthesized by a feasible deposition 2 2 2 2 3 2 precipitation method. The CeO –Sm O /SiO catalyst showed excellent catalytic efﬁ- 2 2 3 2 ciency with *89 % cyclohexene conversion and *90 % selectivity for allylic products (i.e., 2-cyclohexen-1-ol and 2-cyclohexene-1-one), while only *50 and *35 % cyclohexene conversion was observed, respectively, over CeO /SiO and CeO catalysts. 2 2 2 Systematic characterization of the designed catalysts was undertaken to correlate their catalytic activity with the physicochemical properties using X-ray diffraction (XRD) analysis, Brunauer–Emmett–Teller (BET) surface area measurements, Raman spec- troscopy, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and
Research on Chemical Intermediates – Springer Journals
Published: May 29, 2018
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