Synthesis and characterization of Ni nanoparticles-polyvinylamine/SBA-15 catalyst for simple reduction of aromatic nitro compounds

This work concerns the preparation and characterization of Nickel nanoparticle-PVAm/SBA-15, a polymer-inorganic hybrid composite, which was effectively employed as a novel heterogeneous catalyst for reduction of aromatic nitro compounds in the presence of NaBH4 as a reducing agent. The reaction was carried out in room temperature and an aqueous medium. The catalyst showed good activity for the reduction of a number of aromatic nitro compounds yielding the respective amine compounds in excellent yield (~ 98%) at room temperature along with good reusability.

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► Ni-PVAm/SBA-15 11 was used as a novel heterogeneous catalyst for swift reduction of aromatic nitro compounds.
► Ni-PVAm/SBA-15 11 was used as a novel heterogeneous catalyst for swift reduction of aromatic nitro compounds.
► Existence of both organic and inorganic phases in this composite has critical effects on the catalyst activity.
► The composite catalyst possessed excellent stability and recyclability in the reaction.