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Ultrathin SnO2 nanorod/reduced graphene oxide nanosheet composites for electrochemical supercapacitor applications with excellent cyclic stability

  • Manna Liu , Shishuai Sun , Liying Yang and Shougen Yin
Published/Copyright: July 27, 2018
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 109 Issue 8

Abstract

Composites of ultrathin SnO2 nanorods, ∼20 nm in diameter and ∼100 nm in length, intercalated with reduced graphene oxide nanosheets were synthesized by a simple one-step hydrothermal process. The electrochemical performance of the composites as electrode materials for supercapacitors was studied in 1 M Na2SO4 electrolyte. The experimental results indicated that a maximum specific capacitance of 184.6 F g−1 could be obtained from composites at a current density of 100 mA g−1, which was much higher than that of pure SnO2 (62.4 F g−1). Furthermore, the composite exhibited excellent cycling stability (the specific capacitance still retained 98% after 6000 cycles when the scan rate was 50 mV s−1). The excellent electrochemical performance of the composites was attributed to the synergistic effect of SnO2 nanorods and reduced graphene oxide, which makes up for the shortcomings of the individual components. These results indicated that the prepared composites are excellent candidates as electrode materials for high performance energy storage devices.

Keywords: Ultrathin SnO2 nanorods; Composite materials; Supercapacitor; Specific capacitance; Cyclic stability
*Correspondence address, Dr. Shishuai Sun, College of Science, Tianjin University of Technology, 391 Binshui West Road, Xiqing district, Tianjin, 300384, P.R. China, Tel.: +086-022-60215559, E-mail:
** Prof. Liying Yang, School of Materials Science and Engineering, Tianjin University of Technology, 391 Binshui West Road, Xiqing district, Tianjin, 300384, P.R. China, Tel.: +086-022-60215226, E-mail:

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Received: 2018-01-08
Accepted: 2018-02-27
Published Online: 2018-07-27
Published in Print: 2018-08-10

© 2018, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111662
Keywords for this article
Ultrathin SnO2 nanorods; Composite materials; Supercapacitor; Specific capacitance; Cyclic stability

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Dynamic fragmentation and spheroidization of α phase grains during hot deformation of Ti-6Al-4V alloy
  5. Formation and characterization of hot tearing in AZ series alloys
  6. The effect of quench-aging on the mechanical properties of Zn-27Al-1Cu alloy
  7. Microstructural and mechanical properties of novel β-type Ti–Nb–Ni alloys containing a second phase
  8. Microstructure evolution mechanisms of undercooled Ni80Cu20 alloys
  9. Microstructures and tensile properties of CuZrAlNb metallic glass composites under different cooling rates
  10. Influence of a rare-earth element on the solidification behaviour and mechanical properties of undercooled Al–Si alloys
  11. Microstructure of aluminide coatings on Ti6Al4V alloy produced by the slurry method with inorganic binder
  12. Ultrathin SnO2 nanorod/reduced graphene oxide nanosheet composites for electrochemical supercapacitor applications with excellent cyclic stability
  13. Combustion synthesis and formation mechanism of silver nanoparticles
  14. Phase relationship of the Ag–Zr–Cr system at 1000 and 750°C
  15. Thermal properties of carbonized composite materials based on carbon filled elastomeric matrices
  16. Short Communications
  17. Surface morphology and phase stability of titanium irradiated with 168 MeV 136Xe ions
  18. DGM News
  19. DGM News
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