Construction of a nitrogen doped graphene-wrapped Fe3O4@polydopamine/Pd core–shell nanooctahedral for enhanced reduction of nitroarenes and oxidation of alcohols

M Dabiri*, H Siahpoush, N Salarinejad, SK Movahed (2022) Solid State Sciences, 134, 107026

https://doi.org/10.1016/j.solidstatesciences.2022.107026

Abstract

Aiming to achieve enhanced catalytic activity and stability toward the reduction of nitroarenes and the oxidation of benzyl alcohols, was synthesized novel core-shell nanostructures of graphene wrapped Fe₃O₄@polydopamine (PDA)/Pd octahedral. Different graphene-based materials such as graphene oxide (GO), and nitrogen doped reduced graphene oxide (N-RGO) were used for wrapping Fe₃O₄@PDA/Pd core–shell octahedral nanostructures. The best results in the catalytic reactions were achieved by using Fe₃O₄@PDA/Pd@ N-RGO as the catalyst. Increased adsorption ability, augmented conductivity and additional active sites introduced by N–RGO make Fe₃O₄@PDA/Pd@N-RGO hybrid display improved catalytic activity. The catalyst could be recovered by an external magnetic field and reused for successive five runs without any significant deactivation.