Magnetically separable core–shell iron oxide@nickel nanoparticles as high-performance recyclable catalysts for chemoselective reduction of nitroaromatics. Issue 1 (28th August 2014)

• Record Type: Journal Article
• Authors: Rathore, Puran Singh; Patidar, Rajesh; Shripathi, T.; Thakore, Sonal
• Is Part Of: Catalysis science & technology. Volume 5:Issue 1(2015:Jan.)
• Page Start: 286
• Page End: 295
• Publication Date: 2014-08-28
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/c4cy00673a
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : A magnetically separable core–shell iron oxide@nickel nanocatalyst was synthesized, characterized and applied for the aromatic nitro group reduction. Abstract : A magnetically separable core–shell iron oxide@nickel (IO@Ni) nanocatalyst was synthesized by reduction of Ni 2+ ions in the presence of iron oxide (Fe 2+, Fe 3+ ) by a simple one-pot synthetic route using NaBH4 as a reducing agent and starch as a capping agent. The synthesized nanoparticles (NPs) were characterized by several techniques such as X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM), selected area electron diffraction (SAED), and energy dispersive X-ray spectroscopy (EDS). The core–shell iron oxide@nickel nanoparticles (IO@NiNPs) were found to have excellent activity for the hydrogenation reactions of aromatic nitro compounds under mild conditions using water as a green solvent. Excellent chemoselectivity and recyclability up to 30 cycles for the nitro group reduction was demonstrated.