Palladium Nanosheet-Carbon Black Powder Composites for Selective Hydrogenation of Alkynes to Alkenes
Source abstract
Abstract
Ultrathin palladium nanosheets on carbon black grains have been straightforwardly prepared under reductant-free conditions using ultrasonication. The as-prepared composites (showing a quite unusual morphology of Pd-deposits) have been scrutinized as catalysts in the selective alkyne-to-alkene hydrogenation under mild operational conditions. Their activity, selectivity, and robustness in the process are outstanding, opening new horizons for simpler synthetic procedures for this class of composites. Moreover, the tight anchorage of the large and thin metal sheets to the carbon grains of the support dramatically reduces the active phase surface mobility during catalysis. Besides preserving the catalyst performance, this peculiar palladium morphology strongly limits the environmental risks stemming from metal nanoparticles leaching in heterogeneous catalysts.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nanomaterials for catalytic reactions · Asymmetric Hydrogenation and Catalysis · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Université de Strasbourg, Ecole européenne de Chimie, Polymères et Matériaux, CNRS, LIMA, UMR 7042, 25 rue Becquerel, 67087 Strasbourg, France
Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 CNRS-University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg, Cedex 02, France
Institute of Physic and Chemistry of Materials of Strasbourg (IPCMS), UMR 7504 CNRS-University of Strasbourg, 23 rue du Loess, 67037 Strasbourg, Cedex 08, France
Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10 50019, Sesto F.no, Florence, Italy
Funding
Agence Nationale de la Recherche
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