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Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
Preparation, Characterization and Catalytic Activity of Nickel Molybdate (NiMoO₄) Nanoparticles
Hicham Oudghiri-Hassani1,2, Fahd Al Wadaani3
1Chemistry Department, College of Science, Taibah University, Almadinah 30002, Saudia Arabia. oudghiri_hassani_hicham@yahoo.com.
Abstract:
Nickel molybdate (NiMoO₄) nanoparticles were synthesized via calcination of an oxalate complex in static air at 500 °C. The oxalate complex was analyzed by thermal gravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The as-synthesized nickel molybdate was characterized by Brunauer-Emmett-Teller technique (BET), X-ray diffraction (XRD), and transmission electron microscopy (TEM) and its catalytic efficiency was tested in the reduction reaction of the three-nitrophenol isomers. The nickel molybdate displays a very high activity in the catalytic reduction of the nitro functional group to an amino. The reduction progress was controlled using Ultraviolet-Visible (UV-Vis) absorption.
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