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• W2790243592 endingPage "1141" @default.
• W2790243592 startingPage "1129" @default.
• W2790243592 abstract "Abstract Metal‐support interaction plays crucial role in heterogeneous catalysis, stabilizing the active metal species during catalysis. We report here the successful preparation of highly dispersed nickel nanoparticles supported ZrO 2 nanocrystals, which showed excellent performance toward catalytic reduction of nitroarenes to their corresponding amines, where metal‐support interaction plays the key role in enhancing the activity and stability of catalyst. The catalyst was synthesized by a single step hydrothermal method using CTAB (cetyltrimethyl ammonium bromide) as a structure‐ directing agent and PVP (Polyvinylpyrrolidone) as capping agent. Prepared catalyst was characterized by BET‐surface area, Inductively coupled plasma atomic emission spectroscopy (ICP‐AES), X‐ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Temperature programmed reduction (TPR), X‐ray photoelectron spectroscopy (XPS), Fourier transform infra‐red (FT‐IR) spectroscopy, RAMAN spectroscopy, Thermogravimetric analysis (TGA‐DTA), UV‐vis spectroscopy and Extended X‐ray absorption fine structure (EXAFS) analysis. Results obtained from XRD and TPR analysis of 4.9% Ni‐ZrO 2 , support the presence of highly dispersed and subtle Ni (below 5 nm) nanoparticles supported on nanocrystalline ZrO 2 . Prepared 4.9 wt% Ni‐ZrO 2 catalyst showed 100% conversion of p ‐nitrophenol with >99% selectivity to p ‐aminophenol in aqueous medium at 60 °C, in presence of molecular H 2 (1.0 MPa). Superior activity of 4.9% Ni‐ZrO 2 was due to presence of very small (below 5 nm), uniformly distributed, highly dispersed nickel nanoparticle having good metal‐support interaction. Prepared 4.9% Ni‐ZrO 2 catalyst was recycled up to eight successive runs without any significant loss in catalytic activity." @default.
• W2790243592 created "2018-03-29" @default.
• W2790243592 creator A5024998726 @default.
• W2790243592 creator A5032217227 @default.
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• W2790243592 creator A5045989574 @default.
• W2790243592 creator A5063204625 @default.
• W2790243592 creator A5087749676 @default.
• W2790243592 date "2018-01-29" @default.
• W2790243592 modified "2023-10-01" @default.
• W2790243592 title "Surfactant-Induced Preparation of Highly Dispersed Ni-Nanoparticles Supported on Nanocrystalline ZrO₂ for Chemoselective Reduction of Nitroarenes" @default.
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