Green Synthesis, Structural, Electrical and Catalytic Properties of Nano-MgO.

Magnesium oxide nanoparticles (NPs) were prepared by a solution combustion method utilizing Terminalia Cuddapha seed extract as fuel, amounting to a greener synthetic protocol. The nano-MgO was characterized by Fourier transform infrared (FT-IR) spectroscopy, powder x-ray diffraction (XRD), scanning electron microscopy (SEM) with energy-dispersive x-ray analysis (EDAX), transmission electron microscopy (TEM), and Brunauer–Emmett–Teller (BET) analysis. The electrical characteristics including dielectric constant, loss tangent, and AC conductivity were measured using a computer-controlled impedance analyser. The dielectric constant and loss tangent were found to decrease as frequency increased. The AC conductivity of the synthesized NPs was steady in the low-frequency region and found to increase as the frequency increased. Finally, the nano-metal oxide was investigated for its ability to effectively catalyse the synthesis of tetrazoles via [2+3] cycloaddition. The tetrazoles thus prepared were fully characterized by mass and nuclear magnetic resonance (NMR) analysis. [ABSTRACT FROM AUTHOR]