期刊
CHEMNANOMAT
卷 4, 期 6, 页码 537-541出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cnma.201800081
关键词
Aluminosilicates; nanocatalysis; mesoporous; macroporous; N-alkylation
资金
- UGC, Delhi
- CSIR [MLP030626]
- N2020: Nanotechnology based functional solutions [NORTE-45-2015-02]
Aluminosilicate spheres with a macroporous core and mesoporous shell (Si/Al ratio of 11) is synthesised by a sol-gel method utilizing cetyltrimethyl ammonium bromide (CTAB) as a structure directing agent in basic medium. The selective incorporation of aluminium in the silica matrix results in the formation of aluminosilicates with an overall acidity of 0.32mmol/g with interconnected pores. Direct N-alkylation reaction is a prototype of C-N bond formation reaction and meso- macroporous aluminosilicate is shown to catalyze this reaction with excellent yield. The catalyst is tested and found sustainable for five catalytic cycles even without any high temperature regeneration step.
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