Literature DB >> 24039064

Direct observation of cyclic carbenium ions and their role in the catalytic cycle of the methanol-to-olefin reaction over chabazite zeolites.

Shutao Xu1, Anmin Zheng, Yingxu Wei, Jingrun Chen, Jinzhe Li, Yueying Chu, Mozhi Zhang, Quanyi Wang, You Zhou, Jinbang Wang, Feng Deng, Zhongmin Liu.   

Abstract

Carbenium ions in zeolites: Two important carbenium ions have been observed for the first time under working conditions of the methanol-to-olefins (MTO) reaction over chabazite zeolites using (13) C NMR spectroscopy. Their crucial roles in the MTO reaction cycles have been demonstrated by combining experiments and theoretical calculations.
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  carbenium ions; density functional calculations; methanol; olefins; zeolites

Year:  2013        PMID： 24039064     DOI： 10.1002/anie.201303586

Source DB:  PubMed          Journal:  Angew Chem Int Ed Engl        ISSN： 1433-7851            Impact factor:   15.336


  6 in total

1.  In silico prediction and screening of modular crystal structures via a high-throughput genomic approach.

Authors:  Yi Li; Xu Li; Jiancong Liu; Fangzheng Duan; Jihong Yu
Journal:  Nat Commun       Date:  2015-09-23       Impact factor: 14.919

2.  Initial Carbon-Carbon Bond Formation during the Early Stages of the Methanol-to-Olefin Process Proven by Zeolite-Trapped Acetate and Methyl Acetate.

Authors:  Abhishek Dutta Chowdhury; Klaartje Houben; Gareth T Whiting; Mohamed Mokhtar; Abdullah M Asiri; Shaeel A Al-Thabaiti; Suliman N Basahel; Marc Baldus; Bert M Weckhuysen
Journal:  Angew Chem Int Ed Engl       Date:  2016-11-02       Impact factor: 15.336

3.  Brønsted/Lewis acid sites synergistically promote the initial C-C bond formation in the MTO reaction.

Authors:  Yueying Chu; Xianfeng Yi; Chengbin Li; Xianyong Sun; Anmin Zheng
Journal:  Chem Sci       Date:  2018-06-27       Impact factor: 9.825

4.  Rapid synthesis of hierarchical SSZ-13 zeolite microspheres via a fluoride-assisted in situ growth route using aluminum isopropoxide as aluminum source.

Authors:  Liancheng Bing; Jiajia Liu; Kaifeng Yi; Fangni Li; Dezhi Han; Fang Wang; Guangjian Wang
Journal:  RSC Adv       Date:  2020-01-22       Impact factor: 3.361

5.  Identification of different carbenium ion intermediates in zeolites with identical chabazite topology via 13C-13C through-bond NMR correlations.

Authors:  Dong Xiao; Xiuwen Han; Xinhe Bao; Guangjin Hou; Frédéric Blanc
Journal:  RSC Adv       Date:  2019-04-23       Impact factor: 3.361

6.  Direct structural identification of carbenium ions and investigation of host-guest interaction in the methanol to olefins reaction obtained by multinuclear NMR correlations.

Authors:  Dong Xiao; Shutao Xu; Xiuwen Han; Xinhe Bao; Zhongmin Liu; Frédéric Blanc
Journal:  Chem Sci       Date:  2017-10-10       Impact factor: 9.825
  6 in total

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