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A facile one-step hydrothermal synthesis of graphene/CeO2 anocomposite and its catalytic properties

  • Manish Srivastava
  • , Ashok Kumar Das
  • , Partha Khanra
  • , Nam Hoon Kim
  • , Joong Hee Lee
  • Jeonbuk National University

Research output: Contribution to conferenceConference paperpeer-review

Abstract

Graphene/CeO2 nanocomposite has been successfully prepared by directly growing CeO2 nanoparticles on graphene sheets via in-situ reduction of graphene oxide containing the metal precursor. The presence of cetyltrimethyl ammonium bromide (CTAB) results the formation of CeO2 nanoparticles with a narrow size distribution. The structural, morphological, particles size and optical properties of the synthesized products were investigated through X-ray diffraction (XRD), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FT-IR) and UV-vis absorbance spectroscopy, respectively. The XRD pattern shows that graphene/CeO2 nanocomposite is highly crystalline in nature. Growth of CeO2 nanoparticles with size in range of 5- 18 nm on the graphene sheet were observed by TEM measurement. Optical energy band gap was calculated to be ~3.30 eV corresponding to direct transition. The catalytic activity of the synthesized nanocomposite was investigated taking hydrazine hydrate as a model system. Significant enhancement in the peak current with respect to CeO2 was observed on graphene/CeO2 nanocomposite-based electrode demonstrating the higher catalytic activity of graphene/CeO2 nanocomposite-based electrode.

Original languageEnglish
Title of host publicationMulti-Functional Materials and Structures IV
Pages242-245
Number of pages4
DOIs
StatePublished - 2013
Event4th International Conference on Multi-Functional Materials and Structures, MFMS 2013 - Sathorn-Taksin, Bangkok, Thailand
Duration: 2013.07.142013.07.17

Publication series

NameAdvanced Materials Research
Volume747
ISSN (Print)1022-6680

Conference

Conference4th International Conference on Multi-Functional Materials and Structures, MFMS 2013
Country/TerritoryThailand
CitySathorn-Taksin, Bangkok
Period13.07.1413.07.17

Keywords

  • Catalyst
  • Composite
  • Graphene
  • Metal oxide
  • Nanomaterials

Quacquarelli Symonds(QS) Subject Topics

  • Engineering & Technology

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