title: 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.
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 (15) N-solid-state NMR spectroscopy enhanced by dynamic nuclear polarization.
authors.affiliation: 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).
authors.forename: Aany Sofia
authors.initials: AS
authors.lastname: Lilly Thankamony
authors.forename: Cédric
authors.initials: C
authors.lastname: Lion
authors.forename: Frédérique
authors.initials: F
authors.lastname: Pourpoint
authors.forename: Baljeet
authors.initials: B
authors.lastname: Singh
authors.forename: Angel J
authors.initials: AJ
authors.lastname: Perez Linde
authors.forename: Diego
authors.initials: D
authors.lastname: Carnevale
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Bodenhausen
authors.forename: Hervé
authors.initials: H
authors.lastname: Vezin
authors.forename: Olivier
authors.initials: O
authors.lastname: Lafon
authors.forename: Vivek
authors.initials: V
authors.lastname: Polshettiwar
mesh_terms: D002384:Catalysis; D009682:Magnetic Resonance Spectroscopy; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D012822:Silicon Dioxide
keywords: EPR spectroscopy; NMR spectroscopy; fibrous silica (KCC-1); nanocatalysis; nanostructures