Preparation of alumina supported copper nanoparticles and their application in the synthesis of 1,2,3-triazoles

We report here the synthesis of alumina supported copper nanoparticles from copper(II) acetylacetonate and aluminum isopropoxide precursors using aerogel protocol. The nanoparticles were characterized by XRD, TEM, 27Al MAS NMR, XPS and ICP-AES. Cu-Al 2O 3 nanoparticles are used for the preparation o...

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Bibliographic Details
Published in:Journal of molecular catalysis. A, Chemical Chemical, 2006-08, Vol.256 (1), p.273-277
Main Authors: Kantam, M. Lakshmi, Jaya, V. Swarna, Sreedhar, B., Rao, M. Mohan, Choudary, B.M.
Format: Article
Language:English
Subjects:
1,2,3-Triazoles
Alumina
Catalysis
Chemistry
Colloidal state and disperse state
Copper nanoparticles
Exact sciences and technology
General and physical chemistry
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Reusability
Sodium azide
Terminal alkynes
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:We report here the synthesis of alumina supported copper nanoparticles from copper(II) acetylacetonate and aluminum isopropoxide precursors using aerogel protocol. The nanoparticles were characterized by XRD, TEM, 27Al MAS NMR, XPS and ICP-AES. Cu-Al 2O 3 nanoparticles are used for the preparation of 1,2,3-triazoles by the reaction of terminal alkynes, sodium azide and alkyl/allyl halides. The nanoparticles are recovered and reused for several cycles with consistent activity.
ISSN:1381-1169
1873-314X
DOI:10.1016/j.molcata.2006.04.054