Synthesis of Ni(Co)/Pd Ternary Nanostructures and Their Catalytic Activity in p–Nitrophenol Reduction Processes

  • Liliya Bazylyak Department of Physical Chemistry of Fossil Fuels of the Institute of Physical Organic Chemistry and Coal Chemistry named after L. М. Lytvynenko of the National academy of Ukraine, 3а Naukova Str., 79060, Lviv, Ukraine
  • Pavlo Lyutyy Physico-Mechanical Institute named after G. V. Karpenko of the National Academy of Sciences of Ukraine, 5 Naukova Str., Lviv, 79060, Ukraine
  • Vasyl Vynar Physico-Mechanical Institute named after G. V. Karpenko of the National Academy of Sciences of Ukraine, 5 Naukova Str., Lviv, 79060, Ukraine
  • Mariana Shepida Lviv Polytechnic National University, 12 Bandery Str., 79013, Lviv, Ukraine
  • Orest Kuntyi Lviv Polytechnic National University, 12 Bandery Str., 79013, Lviv, Ukraine
  • Andriy Kytsya Department of Physical Chemistry of Fossil Fuels of the Institute of Physical Organic Chemistry and Coal Chemistry named after L. М. Lytvynenko of the National academy of Ukraine, 3а Naukova Str., 79060, Lviv, Ukraine
Keywords: ternary nanoparticles, nickel, cobalt, palladium, catalysis

Abstract

Ni(Co)/Pd nanosized ternary composite materials have been synthesized by the galvanic replacement method. The structure and phase composition of the obtained Ni(Co)/Pd nanostructures were investigated using SEM, EDX and X–ray powder diffraction. The catalytic activity of the synthesized polymetallic Ni(Co)/Pd nanoparticles was studied using the example of the reduction reaction of p–nitrophenol with NaBH4 solution. It was found that in all cases the process of reduction of p–nitrophenol NaBH4 in the presence of Ni(Co)/Pd nanoparticles as a catalyst is described by the first-order kinetic equation for p–nitrophenol. The catalytic activity of the studied nanoparticles based on nickel (Ni) is varied in the following order: Ni < Ni(Co) < Ni(Pd) < Ni(Co)/Pd. It was shown that the decoration of nanoparticles based on d–elements (Ni, Co) with palladium (Pd) significantly increases of their catalytic activity. Moreover, the reduction rate of p–nitrophenol in the presence of Ni(Co)/Pd is almost three times higher, compared to effective catalytic systems known from the references, i. e., such nanosystems can be considered as promising material for the development of new types of magnetically separable catalysts for the production of aminoaromatic compounds.

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Published
2024-05-27
How to Cite
(1)
Bazylyak, L.; Lyutyy, P.; Vynar, V.; Shepida, M.; Kuntyi, O.; Kytsya, A. Synthesis of Ni(Co)/Pd Ternary Nanostructures and Their Catalytic Activity in P–Nitrophenol Reduction Processes. Indo. J. Chem. Res. 2024, 12, 9-15.
Section
Research articles