Influence of precursor porosity on sodium and sulfur promoted iron/carbon Fischer-Tropsch catalysts derived from metal-organic frameworksElectronic supplementary information (ESI) available: Nitrogen physisorption isotherms, hydrogen temperature programmed reduction profiles, electron microscopy images, X-ray diffraction patterns, catalytic data, and experimental details. See DOI: 10.1039/c7cc04877g

Iron-based metal-organic frameworks (MOFs) with varying porosity are converted by pyrolysis into iron/carbon catalysts with predetermined composition and tailored pore structural features for the Fischer-Tropsch synthesis of lower C 2 -C 4 olefins. Significantly higher activity arises for catalysts...

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Main Authors: Oschatz, M, Krause, S, Krans, N. A, Hernández Mejía, C, Kaskel, S, de Jong, K. P
Format: Article
Language:English
Online Access:Get full text
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Summary:Iron-based metal-organic frameworks (MOFs) with varying porosity are converted by pyrolysis into iron/carbon catalysts with predetermined composition and tailored pore structural features for the Fischer-Tropsch synthesis of lower C 2 -C 4 olefins. Significantly higher activity arises for catalysts with higher porosity and decreased iron particle size derived from hierarchical MOF xerogel/aerogel precursors as compared to a purely microporous MOF. Post-synthetic functionalization using sodium and sulfur promoters further enhances the catalytic properties. Metal-organic frameworks with varying porosity are used as precursors for the synthesis of carbon-supported iron catalysts for synthesis gas conversion.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc04877g