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Cover Feature: Impurity Control in Catalyst Design: The Role of Sodium in Promoting and Stabilizing Co and Co 2 C for Syngas Conversion (ChemCatChem 4/2021)
Author(s) -
Asundi Arun S.,
Hoffman Adam S.,
Nathan Sindhu S.,
Boubnov Alexey,
Bare Simon R.,
Bent Stacey F.
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202100030
Subject(s) - syngas , impurity , cover (algebra) , catalysis , feature (linguistics) , chemistry , control (management) , sodium , chemical engineering , inorganic chemistry , materials science , organic chemistry , computer science , engineering , artificial intelligence , mechanical engineering , linguistics , philosophy
The Cover Feature illustrates the significant effects of trace impurities on the structure and syngas conversion reactivity of SiO 2 ‐supported Co 2 C catalysts. In their Full Paper, A. S. Asundi et al. show that low concentrations of Na impurities in a commercial SiO 2 support play an important role in stabilizing the Co 2 C phase resulting in a catalyst with high selectivity for syngas conversion to oxygenated products. In the absence of these impurities, the Co 2 C phase is unstable during reaction and partially decomposes to metallic Co, leading to Fischer‐Tropsch reactivity and a loss of oxygenate selectivity. The results show that impurity control is an important consideration that should not be overlooked in the design and study of catalysts. More information can be found in the Full Paper by A. S. Asundi et al.