A surface oxidised Fe-S catalyst for the liquid phase hydrogenation of CO

Rapidly increasing anthropogenic carbon dioxide (CO 2 ) emissions, coupled with irreversible climate change and depleting fossil fuel reserves, have significantly increased the drive for CO 2 utilisation. Iron sulfide as a catalyst for the hydrogenation of CO 2 has been discussed in the literature f...

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Published inCatalysis science & technology Vol. 11; no. 3; pp. 779 - 784
Main Authors Mitchell, Claire E, Terranova, Umberto, Beale, Andrew M, Jones, Wilm, Morgan, David J, Sankar, Meenakshisundaram, de Leeuw, Nora H
Format Journal Article
Published 15.02.2021
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Summary:Rapidly increasing anthropogenic carbon dioxide (CO 2 ) emissions, coupled with irreversible climate change and depleting fossil fuel reserves, have significantly increased the drive for CO 2 utilisation. Iron sulfide as a catalyst for the hydrogenation of CO 2 has been discussed in the literature for decades, especially in an origin-of-life context, but little experimental evidence exists in the literature for its feasibility. Here we report the catalytic properties of pyrrhotite (Fe 1− x S) for the hydrogenation of CO 2 into formate. Advanced material characterisation methods in combination with computational studies have allowed us to identify surface S-Fe-O moieties as active sites for the reaction. A surface oxidised Fe-S catalyst enhances the liquid phase conversion of CO 2 to formate under mild hydrothermal conditions.
Bibliography:10.1039/d0cy01779e
Electronic supplementary information (ESI) available. See DOI
ISSN:2044-4753
2044-4761
DOI:10.1039/d0cy01779e