Jump to main content
Jump to site search

Issue 37, 2017
Previous Article Next Article

Leaf-inspired interwoven carbon nanosheet/nanotube homostructures for supercapacitors with high energy and power densities

Author affiliations

Abstract

The rational design and scalable synthesis of hierarchical porous carbon as an electrode material for high-energy-density supercapacitors has drawn wide interest. Herein, we report an environmentally friendly one-pot strategy for the synthesis of interwoven carbon nanotube (CNT)/carbon nanosheet (CNS) sandwiches in a molten salt. Green and cheap biomass glucose was chosen as the precursor for producing CNSs at a pyrolysis temperature of 700 °C in a conventional inorganic salt mixture (LiCl and KCl eutectic), while commercially available CNTs were introduced as veins sandwiched with CNS laminae. Relying on the compositional and structural superiorities benefitting from mimicking net-veined leaves, the unique CNT/CNS sandwiches manifest excellent electrochemical capacitive performance in terms of high specific energy (23.6 W h kg−1), excellent rate capacitance retention (∼75% at 10 A g−1) and exceptional cycling stability (capacitance retention of ∼100% after 5000 cycles).

Graphical abstract: Leaf-inspired interwoven carbon nanosheet/nanotube homostructures for supercapacitors with high energy and power densities

Back to tab navigation

Supplementary files

Publication details

The article was received on 07 Jun 2017, accepted on 15 Aug 2017 and first published on 30 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA04952H
Citation: J. Mater. Chem. A, 2017,5, 19997-20004
  •   Request permissions

    Leaf-inspired interwoven carbon nanosheet/nanotube homostructures for supercapacitors with high energy and power densities

    S. Liu, J. Xu, J. Zhu, Y. Chang, H. Wang, Z. Liu, Y. Xu, C. Zhang and T. Liu, J. Mater. Chem. A, 2017, 5, 19997
    DOI: 10.1039/C7TA04952H

Search articles by author

Spotlight

Advertisements