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Role of an intermediate CoxMn1-xO (x=0.6-0.85) nanocrystals in the formation of active species for the direct production of lower olefins from syngas

Abstract

Cobalt-manganese (CoMn) oxides obtained through an one-pot synthesis can be controllably reduced to CoxMn1-xO nanocrystals for direct production of C2-C4 olefins with high selectivity (50.9 mol % ) from syngas at high CO conversion (92.4%), higher than predicted by the Anderson-Schulz-Flory distribution. The formed CoxMn1-xO is the key to generate active Co2C quadrangular nanoprism phase with (101) and (020) exposed facets in-situ during reaction, which plays a pivotal role for high lower-olefin yield. No deactivation was observed for 100 hours under harsh high-conversion reaction conditions while the activity is one magnitude higher than traditional cobalt catalyst.

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Publication details

The article was received on 24 Feb 2019, accepted on 09 May 2019 and first published on 09 May 2019


Article type: Communication
DOI: 10.1039/C9CC01560D
Chem. Commun., 2019, Accepted Manuscript

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    Role of an intermediate CoxMn1-xO (x=0.6-0.85) nanocrystals in the formation of active species for the direct production of lower olefins from syngas

    S. Liu, B. Sun, Y. Zhang, D. E. Resasco, J. Li, L. Nie and L. Wang, Chem. Commun., 2019, Accepted Manuscript , DOI: 10.1039/C9CC01560D

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