Skip to main content

Direct synthesis of RGO/Cu2O composite films on Cu foil for supercapacitors

Journal Article


Download full-text (Open Access)

Abstract


  • Reduced graphene oxide/cuprous oxide (RGO/Cu2O) composite films were directly synthesized on the surface of copper foil substrates through a straight redox reaction between GO and Cu foil via a hydrothermal approach. Characterization of the resultant composites with X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and field emission scanning electron microscope (FESEM) confirms the formation of Cu2O and reduction of GO, in which Cu2O nanoparticles were well covered by RGO. The resultant composites (referred to as RGO/Cu2O/Cu) were directly used as electrodes for supercapacitors, and their electrochemical performance was assessed by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectrometry (EIS) in 1 M KOH aqueous solution. A specific capacitance of 98.5 F g−1 at 1 A g−1 was obtained, which is much higher than that of pure Cu2O prepared under the same conditions, due to the presence of RGO.

Authors


  •   Dong, Xiangmao (external author)
  •   Wang, Kun (external author)
  •   Zhao, Chongjun (external author)
  •   Qian, Xiuzhen (external author)
  •   Chen, Shi (external author)
  •   Li, Zhen (external author)
  •   Liu, Hua K.
  •   Dou, Shi Xue

Publication Date


  • 2014

Citation


  • Dong, X., Wang, K., Zhao, C., Qian, X., Chen, S., Li, Z., Liu, H. K. & Dou, S. (2014). Direct synthesis of RGO/Cu2O composite films on Cu foil for supercapacitors. Journal of Alloys and Compounds, 586 745-753.

Scopus Eid


  • 2-s2.0-84887579465

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1928&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/927

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 745

End Page


  • 753

Volume


  • 586

Place Of Publication


  • Netherlands

Abstract


  • Reduced graphene oxide/cuprous oxide (RGO/Cu2O) composite films were directly synthesized on the surface of copper foil substrates through a straight redox reaction between GO and Cu foil via a hydrothermal approach. Characterization of the resultant composites with X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and field emission scanning electron microscope (FESEM) confirms the formation of Cu2O and reduction of GO, in which Cu2O nanoparticles were well covered by RGO. The resultant composites (referred to as RGO/Cu2O/Cu) were directly used as electrodes for supercapacitors, and their electrochemical performance was assessed by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectrometry (EIS) in 1 M KOH aqueous solution. A specific capacitance of 98.5 F g−1 at 1 A g−1 was obtained, which is much higher than that of pure Cu2O prepared under the same conditions, due to the presence of RGO.

Authors


  •   Dong, Xiangmao (external author)
  •   Wang, Kun (external author)
  •   Zhao, Chongjun (external author)
  •   Qian, Xiuzhen (external author)
  •   Chen, Shi (external author)
  •   Li, Zhen (external author)
  •   Liu, Hua K.
  •   Dou, Shi Xue

Publication Date


  • 2014

Citation


  • Dong, X., Wang, K., Zhao, C., Qian, X., Chen, S., Li, Z., Liu, H. K. & Dou, S. (2014). Direct synthesis of RGO/Cu2O composite films on Cu foil for supercapacitors. Journal of Alloys and Compounds, 586 745-753.

Scopus Eid


  • 2-s2.0-84887579465

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1928&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/927

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 745

End Page


  • 753

Volume


  • 586

Place Of Publication


  • Netherlands