期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 1, 期 9, 页码 1192-1199出版社
AMER CHEMICAL SOC
DOI: 10.1021/sc400126h
关键词
Nanocatalysis; Fibrous silica; KCC-1; Shape and morphology; Solid base; Knoevenagel condensation; Trans-esterification
We 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 MGM-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.
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