Insights into the Catalytic Activity of Nitridated Fibrous Silica (KCC-1) Nanocatalysts from 15N and 29Si NMR Spectroscopy Enhanced by Dynamic Nuclear Polarization†
Dr. Aany Sofia Lilly Thankamony
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)
Search for more papers by this authorDr. Cédric Lion
Univ. Lille Nord de France, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), CNRS UMR 8576, Univ. Lille 1, 59652 Villeneuve d'Ascq (France)
Search for more papers by this authorDr. Frédérique Pourpoint
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)
Search for more papers by this authorBaljeet Singh
Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Search for more papers by this authorDr. Angel J. Perez Linde
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland)
Search for more papers by this authorDr. Diego Carnevale
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland)
Search for more papers by this authorProf. Geoffrey Bodenhausen
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland)
Search for more papers by this authorDr. Hervé Vezin
Univ. Lille Nord de France, Laboratoire de Spectrochimie, Infrarouge et Raman (LASIR), CNRS UMR 8516, Univ. Lille 1, 59652 Villeneuve d'Ascq (France)
Search for more papers by this authorCorresponding Author
Prof. Olivier Lafon
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)
Olivier Lafon, 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)
Vivek Polshettiwar, Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Search for more papers by this authorCorresponding Author
Prof. Vivek Polshettiwar
Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Olivier Lafon, 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)
Vivek Polshettiwar, Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Search for more papers by this authorDr. Aany Sofia Lilly Thankamony
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)
Search for more papers by this authorDr. Cédric Lion
Univ. Lille Nord de France, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), CNRS UMR 8576, Univ. Lille 1, 59652 Villeneuve d'Ascq (France)
Search for more papers by this authorDr. Frédérique Pourpoint
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)
Search for more papers by this authorBaljeet Singh
Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Search for more papers by this authorDr. Angel J. Perez Linde
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland)
Search for more papers by this authorDr. Diego Carnevale
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland)
Search for more papers by this authorProf. Geoffrey Bodenhausen
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland)
Search for more papers by this authorDr. Hervé Vezin
Univ. Lille Nord de France, Laboratoire de Spectrochimie, Infrarouge et Raman (LASIR), CNRS UMR 8516, Univ. Lille 1, 59652 Villeneuve d'Ascq (France)
Search for more papers by this authorCorresponding Author
Prof. Olivier Lafon
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)
Olivier Lafon, 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)
Vivek Polshettiwar, Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Search for more papers by this authorCorresponding Author
Prof. Vivek Polshettiwar
Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Olivier Lafon, 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)
Vivek Polshettiwar, Nanocatalysis Laboratory (NanoCat), Division of ChemicalSciences, Tata Institute of Fundamental Research (TIFR), Mumbai (India)
Search for more papers by this authorThis work was supported by the Region Nord/Pas de Calais, the European Union (FEDER), the CNRS, the French ministry of research, USTL, ENSCL, contracts ANR-2020-jcjc-0811-01, CEFIPRA n°5208-E, COST TD 1103, the Swiss National Science Foundation, the Swiss Commission for Technology and Innovation, the EPFL, and Bruker Biospin. V.P. thanks the Department of Atomic Energy (DAE), Government of India for a start-up grant at Tata Institute of Fundamental Research (TIFR), Mumbai.
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.
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