Skip to main content
placeholder image

Large-scale synthesis of coaxial carbon nanotube/Ni(OH)2 composites for asymmetric supercapacitor application

Journal Article


Abstract


  • Coaxial carbon nanotube-nickel hydroxide (CNT/Ni(OH)2) composites are prepared by a simple, one step and inexpensive chemical coprecipitation method. The coaxial coating of nickel hydroxide provides a three dimensional (3D) structure for easy access of electrolyte. Asymmetric supercapacitors (ASCs) are fabricated using coaxial CNT/Ni(OH)2 composites as positive electrode and reduced graphene oxide (rGO) as negative electrode. The operation voltage is expanded to 1.8V in spite of the use of aqueous electrolyte, revealing a high energy density of 35W·h·kg-1 at a power density of 1.8kW·kg-1. This strategy for choice of coaxial metal hydroxide CNT composites provides a promising route for next generation supercapacitors with high energy as well as power densities.

Authors


  •   Salunkhe, Rahul R. (external author)
  •   Lin, Jianjian (external author)
  •   Malgras, Victor (external author)
  •   Dou, Shi Xue
  •   Kim, Jung Ho
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2015

Citation


  • Salunkhe, R. R., Lin, J., Malgras, V., Dou, S. Xue., Kim, J. & Yamauchi, Y. (2015). Large-scale synthesis of coaxial carbon nanotube/Ni(OH)2 composites for asymmetric supercapacitor application. Nano Energy, 11 211-218.

Scopus Eid


  • 2-s2.0-84919339254

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1497

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 211

End Page


  • 218

Volume


  • 11

Place Of Publication


  • Netherlands

Abstract


  • Coaxial carbon nanotube-nickel hydroxide (CNT/Ni(OH)2) composites are prepared by a simple, one step and inexpensive chemical coprecipitation method. The coaxial coating of nickel hydroxide provides a three dimensional (3D) structure for easy access of electrolyte. Asymmetric supercapacitors (ASCs) are fabricated using coaxial CNT/Ni(OH)2 composites as positive electrode and reduced graphene oxide (rGO) as negative electrode. The operation voltage is expanded to 1.8V in spite of the use of aqueous electrolyte, revealing a high energy density of 35W·h·kg-1 at a power density of 1.8kW·kg-1. This strategy for choice of coaxial metal hydroxide CNT composites provides a promising route for next generation supercapacitors with high energy as well as power densities.

Authors


  •   Salunkhe, Rahul R. (external author)
  •   Lin, Jianjian (external author)
  •   Malgras, Victor (external author)
  •   Dou, Shi Xue
  •   Kim, Jung Ho
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2015

Citation


  • Salunkhe, R. R., Lin, J., Malgras, V., Dou, S. Xue., Kim, J. & Yamauchi, Y. (2015). Large-scale synthesis of coaxial carbon nanotube/Ni(OH)2 composites for asymmetric supercapacitor application. Nano Energy, 11 211-218.

Scopus Eid


  • 2-s2.0-84919339254

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1497

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 211

End Page


  • 218

Volume


  • 11

Place Of Publication


  • Netherlands