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Issue 8, 2018
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Carbonylation of dimethyl ether over Co-HMOR

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Incorporation of Co2+ into the framework of HMOR significantly enhanced the activity for the carbonylation of dimethyl ether to methyl acetate. About 68% of the Co2+ cations are located at site A in the 8-membered ring (8-MR) pores, while 32% of the metal cations are incorporated at site E of the 12-MR pores. Although the amount of the Brønsted acid sites in the 8-MR pores that are intrinsically active for DME carbonylation decreased considerably upon Co-doping, the conversion of DME increased remarkably, almost doubled. The promotional role of Co2+ in the 8-MR channels was to facilitate the adsorption/activation of both CO and DME molecules. Meanwhile, the Co2+ cations located in the 12-MR channels effectively suppressed coke deposition and thus improved the stability of the Co-HMOR catalyst.

Graphical abstract: Carbonylation of dimethyl ether over Co-HMOR

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Publication details

The article was received on 27 Feb 2018, accepted on 09 Mar 2018 and first published on 12 Mar 2018

Article type: Paper
DOI: 10.1039/C8CY00407B
Citation: Catal. Sci. Technol., 2018,8, 2124-2130

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    Carbonylation of dimethyl ether over Co-HMOR

    M. Ma, E. Zhan, X. Huang, N. Ta, Z. Xiong, L. Bai and W. Shen, Catal. Sci. Technol., 2018, 8, 2124
    DOI: 10.1039/C8CY00407B

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