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Insights into the Catalytic Activity of Nitridated Fibrous Silica (KCC‐1) Nanocatalysts from 15N and 29Si NMR Spectroscopy Enhanced by Dynamic Nuclear Polarization |
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| Authors: | Dr. Aany Sofia Lilly Thankamony Dr. Cédric Lion Dr. Frédérique Pourpoint Baljeet Singh Dr. Angel J. Perez Linde Dr. Diego Carnevale Prof. Geoffrey Bodenhausen Dr. Hervé Vezin Prof. Olivier Lafon Prof. Vivek Polshettiwar |
| Affiliation: | 1. Univ. Lille Nord de France, Unite de Catalyse et de Chimie du Solide (UCCS), CNRS UMR 8181, Univ. Lille 1, 59652 Villeneuve d'Ascq (France);2. Univ. Lille Nord de France, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), CNRS UMR 8576, Univ. Lille 1, 59652 Villeneuve d'Ascq (France);3. Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India);4. Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland);5. Univ. Lille Nord de France, Laboratoire de Spectrochimie, Infrarouge et Raman (LASIR), CNRS UMR 8516, Univ. Lille 1, 59652 Villeneuve d'Ascq (France) |
| Abstract: | Fibrous nanosilica (KCC‐1) oxynitrides are promising solid‐base catalysts. Paradoxically, when their nitrogen content increases, their catalytic activity decreases. This counterintuitive observation is explained here for the first time using 15N‐solid‐state NMR spectroscopy enhanced by dynamic nuclear polarization. |
| Keywords: | EPR spectroscopy nanostructures NMR spectroscopy fibrous silica (KCC‐1) nanocatalysis |