Nickel‐substituted cobalt ferrite nanoparticles supported on arginine‐modified graphene oxide nanosheets: Synthesis and catalytic activity

The amino acid arginine was used to modify the surface of graphene oxide nanosheets and then nickel‐substituted cobalt ferrite nanoparticles were supported on those arginine‐grafted graphene oxide nanosheets (Ni0.5Co0.5Fe2O4@Arg–GO). The prepared Ni0.5Co0.5Fe2O4@Arg–GO was characterized using flame...

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Bibliographic Details
Published in:Applied organometallic chemistry 2017-12, Vol.31 (12), p.n/a
Main Authors: Ghadari, Rahim, Namazi, Hassan, Aghazadeh, Mohammad
Format: Article
Language:English
Subjects:
Alcohols
arginine
Atomic absorption analysis
Atomic beam spectroscopy
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Chemistry
Cobalt ferrites
Electron microscopy
Fourier transforms
Graphene
graphene oxide
Inductively coupled plasma
Infrared analysis
Nanocomposites
Nanoparticles
Nanosheets
Nickel
nickel‐substituted cobalt ferrite nanoparticles
Nuclear electric power generation
Oxidation
Phenylenediamine
Scanning electron microscopy
Thermogravimetric analysis
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Summary:The amino acid arginine was used to modify the surface of graphene oxide nanosheets and then nickel‐substituted cobalt ferrite nanoparticles were supported on those arginine‐grafted graphene oxide nanosheets (Ni0.5Co0.5Fe2O4@Arg–GO). The prepared Ni0.5Co0.5Fe2O4@Arg–GO was characterized using flame atomic absorption spectroscopy, inductively coupled plasma optical emission spectrometry, energy‐dispersive spectroscopy, Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, Raman spectroscopy, X‐ray diffraction, thermogravimetric analysis, scanning electron microscopy and transmission electron microscopy. The application of Ni0.5Co0.5Fe2O4@Arg–GO as a catalyst was examined in a one‐pot tandem oxidative cyclization of primary alcohols with o‐phenylenediamine to benzimidazoles under aerobic oxidation conditions. The results showed that 2‐phenylbenzimidazole derivatives were successfully achieved using Ni0.5Co0.5Fe2O4@Arg–GO nanocomposite catalyst via the one‐pot tandem oxidative cyclization strategy. Chemical attachment of arginine on the surface of graphene oxide nanosheets was carried out for the preparation of a green support for immobilization of nickel‐substituted cobalt ferrite nanoparticles. The prepared catalyst showed efficient activity and reusability for the one‐pot tandem oxidative cyclization of primary alcohols with o‐phenylenediamines to benzimidazoles under aerobic oxidation conditions.
ISSN:0268-2605
1099-0739
DOI:10.1002/aoc.3859