Journal of Nanotechnology (Jan 2023)

Unlocking the Potential of NiSO4·6H2O/NaOCl/NaOH Catalytic System: Insights into Nickel Peroxide as an Intermediate for Benzonitrile Synthesis in Water

  • Abdel Ghany F. Shoair,
  • Abdulraheem S. A. Almalki,
  • Mai M. A. H. Shanab,
  • Ahmed M. Sheta,
  • Amir El-Basiony,
  • Nasser A. El-Ghamaz,
  • Hany A. Nasef,
  • Hussein A. Khalaf

DOI
https://doi.org/10.1155/2023/9940845
Journal volume & issue
Vol. 2023

Abstract

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Nickel peroxide nanoparticles (NPNPs) were prepared and characterized using various techniques including transmission electron microscope (TEM), scan electron microscope (SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD), and FTIR spectra. The aqueous basic catalytic system NiSO4·6H2O/NaOCl/NaOH (pH = 14) was investigated for the catalytic dehydrogenation of benzylamine and parasubstituents to their corresponding nitriles at room temperature. The obtained results confirmed the formation of NiO2 nanocrystalline particles with a size of 20 nm. Benzylamine with electron-donating groups showed higher yields of nitriles compared to electron-withdrawing groups. The mechanism involved in the in situ generated NiO2 nanoparticles dehydrogenating benzylamine to benzonitrile, with the produced NiO converting back to NiO2 nanoparticles through the excess of NaOCl.