Characterizations and synergistic catalytic activity of bimetallic Al-Fe-TUD-1

Srinivasan VV; Ramanathan A; Maheswari R; Imran G; Rajalakshmi R; Nilamadanthai A

Materials Research Bulletin, Vol.70, 914-919, 2015

DOI10.1016/j.materresbull.2015.06.039 Export Citation

Characterizations and synergistic catalytic activity of bimetallic Al-Fe-TUD-1

Srinivasan VV, Ramanathan A, Maheswari R, Imran G, Rajalakshmi R, Nilamadanthai A

Amorphous 3D mesoporous silicate TUD-1 was incorporated with monometallic Al3+, Fe3+ and bimetallic Al3+-Fe3+ by direct one pot synthesis. The incorporation of these metal ions created both Lewis and Bronsted acid sites. A synergy between Al and Fe sites in TUD-1 was noticed and is found responsible for observed higher activity in the synthesis of 1,4-dihydropyridine and beta-amino carbonyl compounds through Hantzsch and Mannich reactions respectively. (C) 2015 Elsevier Ltd. All rights reserved.

Keywords:Amorphous materials;Sol-gel chemistry;Nuclear magnetic resonance (NMR);X-ray diffraction;Transmission electron microscopy (TEM);Infrared spectroscopy;Catalytic properties