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Insights into the Catalytic Activity of Nitridated Fibrous Silica (KCC-1) Nanocatalysts from (15) N and (29) Si NMR Spectroscopy Enhanced by Dynamic Nuclear Polarization.
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Insights into the Catalytic Activity of Nitridated Fibrous Silica (KCC-1) Nanocatalysts from (15) N and (29) Si NMR Spectroscopy Enhanced by Dynamic Nuclear Polarization.

Aany Sofia Lilly Thankamony, Cédric Lion, Frédérique Pourpoint, Baljeet Singh, Angel J Perez Linde, Diego Carnevale, Geoffrey Bodenhausen, Hervé Vezin, Olivier Lafon et Vivek Polshettiwar
Angewandte Chemie International Edition, Vol.54(7)
02/12/2014
DOI: https://doi.org/10.1002/anie.201406463
PMID: 25469825

Résumé

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 (15) N-solid-state NMR spectroscopy enhanced by dynamic nuclear polarization.

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