Premium
Synthesis of CuCr 2 O 4 /Reduced Graphene Oxide Composite: A Green Catalyst for Selective Oxidation of Cyclohexane to Cyclohexanone with Hydrogen Peroxide
Author(s) -
Chen Zixiao,
Tang Bo,
Shen Jing,
Chen Qun,
He Guangyu,
Chen Haiqun
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201702318
Subject(s) - cyclohexanone , cyclohexane , graphene , catalysis , materials science , thermogravimetric analysis , x ray photoelectron spectroscopy , oxide , raman spectroscopy , fourier transform infrared spectroscopy , thermal stability , chemical engineering , nuclear chemistry , chemistry , nanotechnology , organic chemistry , engineering , metallurgy , physics , optics
CuCr 2 O 4 /reduced graphene oxide (rGO) composites were prepared using a two‐step method. Detailed characterizations of the material were performed with X‐ray diffraction (XRD), Zeta potential, Fourier transform infrared (FT‐IR), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), Raman spectra, and Thermal Gravimetric Analyzer (TGA). The characterizations showed that the ∼50 nm CuCr 2 O 4 nanoparticles were successfully supported on the rGO via static electricity. The TGA results showed that the quality of rGO in composites was around 10%. The experimental results showed that the catalysts obtained high catalytic activity for the selective oxidation of cyclohexane to cyclohexanone with H 2 O 2 . The catalyst obtained a conversion rate of cyclohexane of up to 95.8%. 78.1% cyclohexanone selectivity was obtained. The catalyst had good cycling stability after 5 reuses. Compared to the other composite materials, the catalyst had high catalytic activity for the selective oxidation of cyclohexane to cyclohexanone.