Synthesis and characterization of Zn(1-x)NixAl 2O4 spinels as a new heterogeneous catalyst of biginelli's reaction
Author
Akika, F. Z.
Kihal, N.
Habila, T.
Avramova I.
Süzer, Şefik
Pirotte, B.
Khelili, S.
Date
2013Source Title
Bulletin of the Korean Chemical Society
Print ISSN
0253-2964
Electronic ISSN
1229-5949
Publisher
Korean Chemical Society
Volume
34
Issue
5
Pages
1445 - 1453
Language
English
Type
ArticleItem Usage Stats
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Abstract
Zn(1-x)NixAl2O4 (x = 0.0-1.0) spinels were prepared at 800 °C by co-precipitation method and characterized by
infrared spectroscopy, X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy.
The specific surface area was determined by BET. SEM image showed nano sized spherical particles. XPS
confirmed the valence states of the metals, showing moderate Lewis character for the surface of materials. The
powders were successfully used as new heterogeneous catalysts of Biginelli’s reaction, a one-pot threecomponent reaction, leading to some dihydropyrimidinones (DHPMs). These new catalysts that produced good
yields of DHPMs, were easily recovered by simple filtration and subsequently reused with persistent activity,
and they are non-toxic and environmentally friendly. The optimum amount of catalyst is 20% by weight of
benzaldehyde derivatives, while the doping amount has been found optimal for x = 0.1.