期刊
JOURNAL OF SAUDI CHEMICAL SOCIETY
卷 23, 期 2, 页码 127-132出版社
ELSEVIER
DOI: 10.1016/j.jscs.2018.05.011
关键词
Cobalt zinc nanoferrites; Surface acidity; Benzylation; Diphenyl methane; Catalyst stability
资金
- University Grants Commission, India
Liquid phase benzylation of benzene with benzyl chloride was investigated over different compositions of cobalt zinc ferrite (CoxZn1-xFe2O4, x-0.0, 0.25, 0.5, 0.75, 1.0) nano composites, synthesized by sot-gel method. The un-substituted cobalt ferrite catalyst exhibited excellent activity among the series effecting complete conversion of benzyl chloride in 60 min at 90 degrees C with 100% selectivity for diphenyl methane. The effect of various reaction parameters on the reaction was studied. Higher benzylation activity of cobalt ferrite nanocomposite is attributed to the presence of higher quantities of moderately acidic sites and a good correlation was observed between surface acidity and benzylation activity of catalysts. The catalysts are reusable without any significant structural change as indicated by X-ray Diffraction (XRD) and Atomic Absorption Spectrophotometer (AAS). (C) 2018 King Saud University. Production and hosting by Elsevier B.V.
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