Nitridated fibrous silica (KCC-1) as a sustainable solid base nanocatalyst
Emwas, Abdul-Hamid M.
Hedhili, Mohamed N.
KAUST DepartmentKAUST Catalysis Center (KCC)
Physical Sciences and Engineering (PSE) Division
Imaging and Characterization Core Lab
Advanced Nanofabrication, Imaging and Characterization Core Lab
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AbstractWe observed that support morphology has dramatic effects on the performance of nitridated silica as a base. By simply replacing conventional silica supports (such as SBA-15 and MCM-41) with fibrous nanosilica (KCC-1), we observed multifold enhancement in the catalytic activity of the nitridated solid base for Knoevenagel condensations and transesterification reactions. This enhancement of the activity can be explained by amine accessibility, which is excellent in KCC-1 due to its open and flexible fibrous structure, that facilitates penetration and interaction with basic amine sites. © 2013 American Chemical Society.
PublisherAmerican Chemical Society (ACS)