Back to Search
Start Over
Synthesis, characterization and catalytic activity of acid–base bifunctional materials through protection of amino groups
- Source :
-
Materials Research Bulletin . Mar2012, Vol. 47 Issue 3, p768-773. 6p. - Publication Year :
- 2012
-
Abstract
- Abstract: Acid–base bifunctional mesoporous material SO3H-SBA-15-NH2 was successfully synthesized under low acidic medium through protection of amino groups. X-ray diffraction (XRD), N2 adsorption–desorption, transmission electron micrographs (TEM), back titration, 13C magic-angle spinning (MAS) NMR and 29Si magic-angle spinning (MAS) NMR were employed to characterize the synthesized materials. The obtained bifunctional material was tested for aldol condensation reaction between acetone and 4-nitrobenzaldehyde. Compared with monofunctional catalysts of SO3H-SBA-15 and SBA-15-NH2, the bifunctional sample of SO3H-SBA-15-NH2 containing amine and sulfonic acid groups exhibited excellent acid–basic properties, which make it possess high activity for the aldol condensation. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00255408
- Volume :
- 47
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Materials Research Bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 72342500
- Full Text :
- https://doi.org/10.1016/j.materresbull.2011.12.001