Study on maximizing catalytic performance of cobalt(II) 5,10,15, 20-tetrakis(4-pyridyl)porphyrin for cyclohexane oxidation

다국어 초록 (Multilingual Abstract)

Aiming at the most enhancing the catalytic performance of simple and cheap cobalt(II) 5,10,15,20-tetrakis(4-pyridyl)porphyrin (Co TPyP), guided by the nowadays-advanced various technologies, Co TPyP wasanchored onto nanoporous bar with thiol-functionalized silica (npb-SiO2-SH). The resulting npb-SiO2-SCoTPyP catalyst was characterized using various techniques, determining its structure. The total surfacearea ratios (TSAR) of the immobilized cobalt porphyrin to the npb-SiO2-SH, and the catalytic cyclohexaneoxidation reaction conditions were at the same time optimized via Response Surface Methodology(RSM). Compared with those obtained from traditional optimizing method (TOM), on average, RSM couldenhance as high as more than 60% catalyst turnover frequency (TOF) and yields of cyclohexanone andcyclohexanol (KA oil). The anchored 0.05 mg Co TPyP could catalyze the oxidation of 200 mL ofcyclohexane, under not using any solvents and additives, offering 2.5106 1/h of TOF, and 19% of yields.
The npb-SiO2-S (20%-0.0438)-Co TPyP catalyst showed better reusability, excellent catalytic

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