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Organic and inorganic entities have been hybridized using 3-aminopropyltriethoxysilane (APTES) linker for the synthesis of three novel organic-inorganic hybrid catalysts [Cu(II), Co(II) and Ni(II)]. During the course of the synthesis, the static inorganic moiety was functionalized with versatile imine (C=N) groups. The prepared catalysts were characterized by spectral techniques (EDS, FT-IR, DR UV-Vis., Si-29 CP/MAS NMR, powder-XRD and ESR), thermal study (TG-DTG) and surface studies (SEM and AFM). The reported catalysts are significant because of their geometrical and dispersive surface properties. The synthesised catalysts were tested with cyclohexane oxidation reactions using H2O2, to make the catalytic system eco-friendly. Compared to the previously reported catalysts, the present catalysts have shown better cyclohexane conversion and selectivity, and are also cost effective. Among the three catalysts studied, Cu(II) catalyst showed the maximum conversion efficiency (44%) with product selectivity of 29% cyclohexanol and 71% cyclohexanone. Because of the combination of interesting structural properties and acceptable catalytic property with better selectivity and environment benign character along with a low cost, these hybrid catalysts could be the best future catalysts for cyclohexane oxidation.
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RSC ADVANCES
ISSN: 2046-2069
Year: 2014
Issue: 81
Volume: 4
Page: 42816-42824
3 . 8 4
JCR@2014
3 . 9 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:268
JCR Journal Grade:1
CAS Journal Grade:3
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SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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