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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

2014; Wiley; Volume: 54; Issue: 7 Linguagem: Inglês

10.1002/anie.201406463

1521-3773

Aany Sofia Lilly Thankamony, Cédric Lion, Frédérique Pourpoint, Baljeet Singh, Angel J. Perez Linde, Diego Carnevale, Geoffrey Bodenhausen, Hervé Vezin, Olivier Lafon, Vivek Polshettiwar,

Zeolite Catalysis and Synthesis

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.