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Title: Nickel-antimony nanoparticles confined in SBA-15 as highly efficient catalysts for the hydrogenation of nitroarenes
Authors: Marakatti, Vijaykumar S.
Peter, Sebastian C.
Keywords: Chemistry
Heterogeneous Catalysis
4-Nitrophenol Reduction
Intermetallic Compounds
Ag Nanoparticles
Co Oxidation
Issue Date: 2016
Publisher: Royal Society of Chemistry
Citation: Marakatti, V. S.; Peter, S. C., Nickel-antimony nanoparticles confined in SBA-15 as highly efficient catalysts for the hydrogenation of nitroarenes. New Journal of Chemistry 2016, 40 (6), 5448-5457
New Journal of Chemistry
Abstract: NiSb nanoparticles confined in SBA-15 are found to be highly efficient catalysts for nitroarene reduction reactions. The NiSb/SBA-15 catalysts with different chemical compositions were prepared using an adsorption-reduction method and were well characterized by XRD, N-2 sorption, UV-Vis, ICP-OES, SEM, TEM and EDAX. The effect of different metal concentrations of Ni and Sb on the formation of NiSb alloy nanoparticles on SBA-15 was investigated. The XRD, UV and TEM images confirmed the formation of uniform NiSb nanoparticles of size 4-6 nm on the SBA-15 support. The synthesized catalysts were screened for the nitroarene reduction using NaBH4. The NiSb/SBA-15 catalyst showed excellent catalytic activity compared to NiSb nanoparticles of different particle sizes in p-nitrophenol reduction. The NiSb/SBA-15 catalyst showed superior catalytic activity compared to any Ni nanoparticle catalysts reported so far. The NiSb/SBA-15 catalyst showed enhanced catalytic activity towards the reduction of various nitroarenes compared to Ni/SBA-15.
Description: Restricted Access
ISSN: 1144-0546
Appears in Collections:Research Papers (Sebastian C. Peter)

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