Journal
CHEMCATCHEM
Volume 12, Issue 22, Pages 5750-5758Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.202001109
Keywords
CO(2)hydrogenation; zeolites; MOFs; olefins
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Funding
- European Commission-Horizon 2020 [792943]
- Ministry of Economy and Competitiveness of the Spanish Government [CTQ2016-77812-R]
- la Caixa Foundation [100010434, LCF/BQ/PI19/11690011]
- KU Leuven Internal Funds
- Marie Curie Actions (MSCA) [792943] Funding Source: Marie Curie Actions (MSCA)
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In this contribution we propose an alternative catalytic system based on MOF derivatives and small pore zeolites for the selective conversion of CO(2)into light olefins, using the lowest metal loadings and highest GHSV reported in literature. The catalyst synthesis involves deriving In-Zr oxides from MOFs containing these metals in their structure, i. e. (Zr)UiO-67-bipy-In, via direct calcination in the presence of the zeolite, avoiding co-precipitation, washing and mixing steps. This effectively creates a truly bifunctional In-Zr zeolite catalyst, opposed to physical mixtures of two catalysts using different precursors. The good dispersion and low loadings of the MOF-derived In-Zr oxide supplemented with the strong acidity of chabazite-type zeolites allows to couple the activation of CO(2)with C-C coupling, obtaining space time yields of 0.1 mol of CO(2)converted to light olefins per gram of In per hour at 375 degrees C, under the GHSV conditions employed.
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