Preparation of Core-Shell Structured Iron Oxide/Graphene Composites for Supercapacitors Application

코어-쉘 구조의 산화철/그래핀 복합체 제조 및 슈퍼커패시터 응용

  • Lee, Chongmin (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Chang, Hankwon (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Jang, Hee Dong (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources)
  • 이총민 (한국지질자원연구원 자원활용연구센터) ;
  • 장한권 (한국지질자원연구원 자원활용연구센터) ;
  • 장희동 (한국지질자원연구원 자원활용연구센터)
  • Received : 2018.08.03
  • Accepted : 2018.09.21
  • Published : 2018.09.30


Core-shell structured $Fe_3O_4/graphene$ composites were synthesized by aerosol spray drying process from a colloidal mixture of graphene oxides and $Fe_3O_4$ nanoparticles. The structural and electrochemical performance of $Fe_3O_4/graphene$ were characterized by the field-emission scanning electron microscopy, X-ray diffraction, Raman spectroscopy, cyclic voltammetry, and galvanometric discharge-charge method. Core-shell structured $Fe_3O_4/GR$ composites were synthesized in different mass ratios of $Fe_3O_4$ and graphene oxide. The composite particles were around $3{\mu}m$ in size. $Fe_3O_4$ nanoparticles were encapsulated with a graphene. Morphology of the $Fe_3O_4/graphene$ composite particles changed from a spherical ball having a relatively smooth surface to a porous crumpled paper ball as the content of GO increased in the composites. The $Fe_3O_4/GR$ composite fabricated at the weight ratio of 1:4 ($Fe_3O_4:GO$) exhibited higher specific capacitance($203F\;g^{-1}$) and electrical conductivity than as-fabricated $Fe_3O_4/GR$ composite.


Supported by : 한국지질자원연구원


  1. Burke, A. (2000). Ultracapacitors: why, how, and where is the technology, Journal of Power Sources, 91, 37-50.
  2. Cai, Y.F., Liu, X.H., Zhou, P.F., Kuang, Y.L., Lin, L.L., and Feng, X.M. (2013). Iron-catalyzed asymmetric haloamination reactions, Chemical Communications, 49, 8054-8056.
  3. Chen, H., Hu, L.F., Chen, M., Yan, Y., and Wu, L.M. (2014). Nickel-cobalt layered double hydroxide nanosheets for high-performance supercapacitor electrode materials, Advanced Functional Materials, 24, 934-942.
  4. He, P., Yang, K., Wang, W., Dong, F.Q., Du, L.C., and Deng, Y.Q. (2013). Reduced graphene oxide-$CoFe_2O_4$ composites for supercapacitor electrode, Russian Journal of Electrochemistry, 49, 359-364.
  5. Jiang, J., Li, Y.Y., Liu, J.P., Huang, X.T., Yuan, C.Z., and Lou, X.W. (2012). Recent advances in metal oxide-based electrode architecture design for electrochemical energy storage, Advanced Materials, 24, 5166-5180.
  6. Kumbhar, V.S., Jagadale, A.D., Shinde, N.M., and Lokhande, C.D. (2012). Chemical synthesis of spinel cobalt ferrite (CoFe2O4) nano-flakes for supercapacitor application, Applied Surface Science, 259, 39-43.
  7. Lee, C., Jo, E.H., Kim, S.K., Choi, J.H., Chang, H., and Jang, H.D. (2017). Electrochemical performance of crumpled graphene loaded with magnetite and hematite nanoparticles for supercapacitors, Carbon, 115, 331-337.
  8. Li, J.H., Hong, R.Y., Luo, G.H., Zheng, Y., Li, H.Z., and Wei, D.G. (2010). An easy approach to encapsulating Fe3O4 nanoparticles in multiwalled carbon nanotubes, New Carbon Materials, 25, 192-198.
  9. Liang, X.J., Ji, G.Y., Zhang, L.P., Yang, Y.X., and Liu, X.N. (2011). Synthesis and properties of $Fe_3O_4$ nanoparticles by sol-vothermal method using iron(III) acetylacetonate, Glass Physics and Chemistry, 37, 459-465.
  10. Mastragostino, M., Arbizzani, C., and Soavi, F. (2002). Conducting polymers as electrode materials in supercapacitors, Solid State Ionics, 148, 493-498.
  11. Sahoo, S., and Shim, J.J. (2017). Facile synthesis of three-dimensional ternary $ZnCo_2O_4$/reduced graphene oxide/NiO composite film on nickel foam for next generation supercapacitor electrodes, ACS Sustainable Chemistry & Engineering, 5, 241-251.
  12. Wu, H.B., Pang, H., and Lou, X.W. (2013). Facile synthesis of mesoporous $Ni_{0.3}Co_{2.7}O_4$ hierarchical structures for high-performance supercapacitors, Energy & Environmental Science, 6, 3619-3626.
  13. Wu, Z.S., Zhou, G.M., Yin, L.C., Ren, W., Li, F., and Cheng, H.M. (2012). Graphene/metal oxide composite electrode materials for energy storage, Nano Energy, 1, 107-131.
  14. Xia, K.S., Gao, Q.M., Jiang, J.H., and Hu, J. (2008). Hierarchical porous carbons with controlled micropores and mesopores for supercapacitor electrode materials, Carbon, 46, 1718-1726.
  15. Xiao, Y.L., Li, X.M., Zai, J.T., Wang, K.X., Gong, Y., Li, B., Han, Q.Y., and Qian, X.F. (2014). $CoFe_2O_4$-graphene nanocomposites synthesized through an ultrasonic method with enhanced performances as anode materials for Li-ion batteries, Nano-Micro Letters, 6, 307-315.
  16. Xu, J.A., Gao, L., Cao, J.Y., Wang, W.C., and Chen, Z.D. (2010). Preparation and electrochemical capacitance of cobalt oxide ($Co_3O_4$) nanotubes as supercapacitor material, Electrochimica Acta, 56, 732-736.
  17. Zhang, L.L., and Zhao, X.S. (2009). Carbon-based materials as supercapacitor electrodes, Chemical Society Reviews, 38, 2520-2531.
  18. Zhi, M.J., Xiang, C.C., Li, J.T., Li, M., and Wu, N.Q. (2013). Nanostructured carbon-metal oxide composite electrodes for supercapacitors: a review, Nanoscale, 5, 72-88.