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RESEARCH PRODUCT

Exploring the catalytic performance of a series of bimetallic MIL-100(Fe, Ni) MOFs

Hermenegildo García GómezChristian SerreSergio Navalón OltraMónica Giménez-marquésMónica Giménez-marquésFarid NouarAndrea Santiago-portilloMaria Mercedes Alvaro RodríguezValérie Briois

subject

Renewable Energy Sustainability and the EnvironmentfungiAcid-catalyzed reactionsExtended X ray absorption fine structure spectroscopy02 engineering and technologyGeneral Chemistry[CHIM.CATA]Chemical Sciences/Catalysis021001 nanoscience & nanotechnology7. Clean energyHeterogeneous catalystMetalorganic frameworks (MOFs)QUIMICA ORGANICAPolitical scienceCatalyst activityGeneral Materials ScienceChristian ministryEuropean commission0210 nano-technologyHumanitiesComputingMilieux_MISCELLANEOUS

description

[EN] A series of mixed-metal Fe-III/Ni-II metal-organic frameworks (MOFs) of the MIL-100 type containing different metal ratios have been synthesized de novo, following an approach that requires tuning of the Fe-III/Ni-II reactivity. The resulting heterometallic MIL-100(Fe, Ni) materials maintain thermal, chemical and structural stability with respect to the parent MIL-100(Fe) MOF as can be deduced from various techniques. The nature and the oxidation state of the accessible metal cations have been evaluated by in situ infrared spectroscopy and extended X-ray absorption fine structure measurements. The obtained mixed-metal MOFs and the parent material have been evaluated as heterogeneous catalysts in a model acid-catalyzed reaction, i.e., the Prins reaction. It is found that the catalytic activity improves by more than one order of magnitude upon incorporation of Ni-II, with a complete selectivity for the formation of nopol. This increase in the catalytic activity upon incorporation of Ni-II correlates with the enhancement in the Lewis acidity of the material as determined by CO adsorption. The heterometallic MOF can be recycled without observation of metal leaching, while maintaining the crystal structure under the reaction conditions.

yearjournalcountryeditionlanguage
2019-09-10
10.1039/c9ta01948khttp://hdl.handle.net/10261/207936