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Communication Dans Un Congrès Année : 2016

photocatalytic system based on rh-functionalized metal-organic framework

C. Mellot-Draznieks
M.B. Chambers
  • Fonction : Auteur

Résumé

Metal-Organic-Frameworks appear to be appealing platforms for immobilization of single-site organometallic catalysts. The first photosensitization of a rhodium-based catalytic system for CO2 reduction is reported, with formate as the sole carbon-containing product. Through post-synthetic ligand exchange methodology, we successfully proceeded to the heterogenization of this molecular catalyst via the synthesis of a new metal-organic framework (MOF) Cp*Rh@UiO-67. While the catalytic activities of the homogeneous and heterogeneous systems are found to be comparable, the MOF-based system is more stable and more selective for formate. Through the study of the behaviour of MOF systems having a controlled Rh loading, competitive catalytic reaction occurring inside the Cp*Rh@UiO-67 framework are postulated. Finally, a combined computational-experimetnal methodology allowed unravelling the band-gap as a new descriptor of the chemical compostion of the hybrid material, to assess ultimately the covalent incorporation of the organometallic catalyst within the framework.
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Dates et versions

hal-01316548 , version 1 (17-05-2016)

Identifiants

  • HAL Id : hal-01316548 , version 1

Citer

J. Canivet, D. Farrusseng, C. Mellot-Draznieks, M.B. Chambers, M. Fontecave. photocatalytic system based on rh-functionalized metal-organic framework. EMRS Spring Meeting 2016, May 2016, Lille, France. ⟨hal-01316548⟩
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