Heterogeneous oxidation of cyclohexanone catalyzed by TS-1: Combined experimental and DFT studies

Changjiu Xia Long Ju Yi Zhao Hongyi Xu Bin Zhu Feifei Gao Min Lin Zhenyu Dai Xiaodong Zou Xingtian Shu

引用本文: Changjiu Xia, Long Ju, Yi Zhao, Hongyi Xu, Bin Zhu, Feifei Gao, Min Lin, Zhenyu Dai, Xiaodong Zou, Xingtian Shu. Heterogeneous oxidation of cyclohexanone catalyzed by TS-1: Combined experimental and DFT studies[J]. 催化学报, 2015, 36(6): 845-854. doi: 10.1016/S1872-2067(15)60859-2 shu
Citation:  Changjiu Xia, Long Ju, Yi Zhao, Hongyi Xu, Bin Zhu, Feifei Gao, Min Lin, Zhenyu Dai, Xiaodong Zou, Xingtian Shu. Heterogeneous oxidation of cyclohexanone catalyzed by TS-1: Combined experimental and DFT studies[J]. Chinese Journal of Catalysis, 2015, 36(6): 845-854. doi: 10.1016/S1872-2067(15)60859-2 shu

Heterogeneous oxidation of cyclohexanone catalyzed by TS-1: Combined experimental and DFT studies

    通讯作者: Min Lin,Tel/Fax: +86-10-82368801; E-mail: minlin@tom.com;Min Lin,Tel: +46-8162389; Fax: +46-8152187; E-mail: xzou@mmk.su.se
  • 基金项目:

    This work was supported by the National Basic Research Program of China (973 Program, 2006CB202508) (973 Program, 2006CB202508)

    China Petrochemical Corporation (SINOPEC Group 20673054) (SINOPEC Group 20673054)

    Swedish Research Council (VR) (VR)

    and Knut and Alice Wallenberg Foundation (Catalysis in Selective Organic Synthesis). (Catalysis in Selective Organic Synthesis)

摘要: The reaction mechanism of the oxidation of cyclohexanone catalyzed by titanium silicate zeolite TS-1 using aqueous H2O2 as the oxidant was investigated by combining density function theory (DFT) calculations with experimental studies. DFT calculations showed that H2O2 was adsorbed and activated at the tetrahedral Ti sites. By taking into account the adsorption energy, molecular size, steric hindrance and structural information, a reaction mechanism of Baeyer-Villiger oxidation catalyzed by TS-1 that involves the activation of H2O2 was proposed. Experimental studies showed that the major products of cyclohexanone oxidation by H2O2 catalyzed by a hollow TS-1 zeolite were ε-carprolactone, 6-hydroxyhexanoic acid, and adipic acid. These products were analyzed by GC-MS and were in good agreement with the proposed mechanism. Our studies showed that the reaction mechanism on TS-1 zeolite was different from that on Sn-beta zeolite.

English

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  • 发布日期:  2015-06-20
  • 收稿日期:  2015-02-26
  • 网络出版日期:  2015-04-02
通讯作者: 陈斌, bchen63@163.com
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