Synthesis and Characterization of Mn3O4-Graphene Nanocomposite thin Film by an ex situ Approach 


Vol. 35,  No. 4, pp. 1067-1072, Apr.  2014
10.5012/bkcs.2014.35.4.1067


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  Abstract

In this study, we report a new approach for Mn3O4-graphene nanocomposite by ex situ method. This nanocomposite shows two-dimensional aggregation of nanoparticle, and doping effect by decorated manganese oxide (Mn3O4), as well. The graphene film was made through micromechanical cleavage of graphite on the SiO2/Si wafer. Manganese oxide (Mn3O4) nanoparticle with uniform cubic shape and size (about 5.47 ± 0.61 nm sized) was synthesized through the thermal decomposition of manganese(II) acetate, in the presence of oleic acid and oleylamine. The nanocomposite was obtained by self-assembly of nanoparticles on graphene film, using hydrophobic interaction. After heat treatment, the decorated nanoparticles have island structure, with one-layer thickness by two-dimensional aggregations of particles, to minimize the surface potential of each particle. The doping effect of Mn3O4 nanoparticle was investigated with Raman spectra. Given the upshift in positions of G and 2D in raman peaks, we suggest that Mn3O4 nanoparticles induce p-doping of graphene film.

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  Cite this article

[IEEE Style]

M. Kang, J. H. Kim, W. Yang, H. Jung, "Synthesis and Characterization of Mn3O4-Graphene Nanocomposite thin Film by an ex situ Approach," Bulletin of the Korean Chemical Society, vol. 35, no. 4, pp. 1067-1072, 2014. DOI: 10.5012/bkcs.2014.35.4.1067.

[ACM Style]

Myunggoo Kang, Jung Hun Kim, Woochul Yang, and Hyun Jung. 2014. Synthesis and Characterization of Mn3O4-Graphene Nanocomposite thin Film by an ex situ Approach. Bulletin of the Korean Chemical Society, 35, 4, (2014), 1067-1072. DOI: 10.5012/bkcs.2014.35.4.1067.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949