期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 323, 期 1-2, 页码 40-44出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2010.03.007
关键词
A(3)-coupling reaction; Glycol; Heterogeneous catalysis; SBA-15; Silver nanoparticles
资金
- National Nature Science Foundation of China [20872135]
- China National Tobacco Corporation [110200701007]
The mesoporous SBA-15 supported silver nanoparticles catalyst system with a highly ordered hexagonal mesostructure was prepared by an in situ reduction method using hexamethylenetetramine as mild and efficient reducing agent. These AgSBA-15 materials act as environmentally friendly catalysts in A(3)-coupling reactions of aldehydes, amines, and terminal alkynes with glycol as a green solvent. It is also found that the maximum reaction yield has been obtained for an average Ag-nanoparticle size of about 8 nm. The catalyst could also be recovered easily and used repetitively four times without significantly affecting the catalytic activity. The heterogeneous catalysts were fully characterized by N-2 adsorption and desorption, XRD, TEM, ICP and XPS. (C) 2010 Elsevier B.V. All rights reserved.
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