Observation of reactive intermediates in the initial stage during ethene conversion over acidic zeolites

Jing Niu; Yu-Ting Miao; Wei David Wang; Meng-Tong Ruan; Zhi-Peng Wang; Hua-Dong Xue; Si-Min Yu; Chong Liu; Jian-Feng Wu; Wei Wang

doi:10.1039/D3CY00709J

Observation of reactive intermediates in the initial stage during ethene conversion over acidic zeolites†

Jing Niu,^a Yu-Ting Miao,^a Wei David Wang,

^a Meng-Tong Ruan,^a Zhi-Peng Wang,^a Hua-Dong Xue,^a Si-Min Yu,*^a Chong Liu,

*^b Jian-Feng Wu

*^ac and Wei Wang

*^a

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* Corresponding authors

^a State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou Magnetic Resonance Center, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
E-mail: yusm@lzu.edu.cn, wjf@lzu.edu.cn, wang_wei@lzu.edu.cn

^b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
E-mail: chongliu@fjirsm.ac.cn

^c State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China

Abstract

The key intermediates, i.e., surface ethoxy species, were observed upon the adsorption of ethene on zeolite H-Y for the first time. By combining a selective ¹³C-labeling protocol with a multitechnique approach, we confirmed the critical role of surface ethoxy species, that is, equilibrium with ethene in the primary step and further alkylation to form the C–C bond.

Catalysis Science & Technology

Observation of reactive intermediates in the initial stage during ethene conversion over acidic zeolites†

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Observation of reactive intermediates in the initial stage during ethene conversion over acidic zeolites

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