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Fabrication of graphene foam supported carbon nanotube/polyaniline hybrids for high-performance supercapacitor applications

Journal Article


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Abstract


  • A large-scale, high-powered energy storage system is crucial for addressing the energy problem. The development of high-performance materials is a key issue in realizing the grid-scale applications of energy-storage devices. In this work, we describe a simple and scalable method for fabricating hybrids (graphenepyrrole/ carbon nanotube-polyaniline (GPCP)) using graphene foam as the supporting template. Graphene-pyrrole (G-Py) aerogels are prepared via a green hydrothermal route from two-dimensional materials such as graphene sheets, while a carbon nanotube/polyaniline (CNT/PANI) composite dispersion is obtained via the in situ polymerization method. The functional nanohybrid materials of GPCP can be assembled by simply dipping the prepared G-py aerogels into the CNT/PANI dispersion. The morphology of the obtained GPCP is investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which revealed that the CNT/PANI was uniformly deposited onto the surfaces of the graphene. The as-synthesized GPCP maintains its original three-dimensional hierarchical porous architecture, which favors the diffusion of the electrolyte ions into the inner region of the active materials. Such hybrid materials exhibit significant specific capacitance of up to 350 F g-1, making them promising in large-scale energy-storage device applications.

Authors


  •   Yang, Hongxia (external author)
  •   Wang, Nan (external author)
  •   Xu, Qun (external author)
  •   Chen, Zhimin (external author)
  •   Ren, Yumei (external author)
  •   Razal, Joselito M. (external author)
  •   Chen, Jun

Publication Date


  • 2014

Citation


  • Yang, H., Wang, N., Xu, Q., Chen, Z., Ren, Y., Razal, J. M. & Chen, J. (2014). Fabrication of graphene foam supported carbon nanotube/polyaniline hybrids for high-performance supercapacitor applications. 2D Materials, 1 (3), 1-14.

Scopus Eid


  • 2-s2.0-84940094628

Ro Full-text Url


  • http://ro.uow.edu.au/context/aiimpapers/article/2583/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1581

Has Global Citation Frequency


Number Of Pages


  • 13

Start Page


  • 1

End Page


  • 14

Volume


  • 1

Issue


  • 3

Place Of Publication


  • United Kingdom

Abstract


  • A large-scale, high-powered energy storage system is crucial for addressing the energy problem. The development of high-performance materials is a key issue in realizing the grid-scale applications of energy-storage devices. In this work, we describe a simple and scalable method for fabricating hybrids (graphenepyrrole/ carbon nanotube-polyaniline (GPCP)) using graphene foam as the supporting template. Graphene-pyrrole (G-Py) aerogels are prepared via a green hydrothermal route from two-dimensional materials such as graphene sheets, while a carbon nanotube/polyaniline (CNT/PANI) composite dispersion is obtained via the in situ polymerization method. The functional nanohybrid materials of GPCP can be assembled by simply dipping the prepared G-py aerogels into the CNT/PANI dispersion. The morphology of the obtained GPCP is investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which revealed that the CNT/PANI was uniformly deposited onto the surfaces of the graphene. The as-synthesized GPCP maintains its original three-dimensional hierarchical porous architecture, which favors the diffusion of the electrolyte ions into the inner region of the active materials. Such hybrid materials exhibit significant specific capacitance of up to 350 F g-1, making them promising in large-scale energy-storage device applications.

Authors


  •   Yang, Hongxia (external author)
  •   Wang, Nan (external author)
  •   Xu, Qun (external author)
  •   Chen, Zhimin (external author)
  •   Ren, Yumei (external author)
  •   Razal, Joselito M. (external author)
  •   Chen, Jun

Publication Date


  • 2014

Citation


  • Yang, H., Wang, N., Xu, Q., Chen, Z., Ren, Y., Razal, J. M. & Chen, J. (2014). Fabrication of graphene foam supported carbon nanotube/polyaniline hybrids for high-performance supercapacitor applications. 2D Materials, 1 (3), 1-14.

Scopus Eid


  • 2-s2.0-84940094628

Ro Full-text Url


  • http://ro.uow.edu.au/context/aiimpapers/article/2583/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1581

Has Global Citation Frequency


Number Of Pages


  • 13

Start Page


  • 1

End Page


  • 14

Volume


  • 1

Issue


  • 3

Place Of Publication


  • United Kingdom