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Efficient oxidation of ethylbenzene catalyzed by cobalt zeolitic imidazolate framework ZIF-67 and NHPI |
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| Authors: | Hongyan Li Hong Ma Xinhong Wang Jin Gao Chen Chen Song Shi Minjie Qu Na Feng Jie Xu |
| Institution: | 1. School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China 2. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, Liaoning, China |
| Abstract: | Efficient catalytic oxidation of ethylbenzene to acetophenone was realized using the catalytic system of cobalt zeolitic imidazolate framework ZIF-67/N-hydroxyphthalimide(NHPI) under mild conditions. 95.2% conversion of ethylbenzene with 90.3% selectivity to acetophenone could be obtained at 373 K under 0.3 MPa O2 for 9 h. The results show that there exists synergetic effect between ZIF-67 and NHPI. 1-Phenylethyl hydroperoxide(PEHP) was generated via a radical process involving the hydrogen abstraction from ethylbenzene by phthalimide N-oxyl, and subsequently effectively decomposed to acetophenone by ZIF-67. |
| Keywords: | N-hydroxyphthalimide ZIF-67 oxidation ethylbenzene acetophenone |
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