Jump to main content
Jump to site search

Issue 22, 2015
Previous Article Next Article

Ultrathin porous nickel–cobalt hydroxide nanosheets for high-performance supercapacitor electrodes

Author affiliations

Abstract

In this work, ultrathin porous nickel–cobalt layered double hydroxide (Ni–Co LDH) hybrid nanosheets on metal nickel sheets are synthesized via a facile hydrothermal method without any adscititious surfactant. The fabricated Ni–Co LDH hybrid nanosheet-based electrodes for supercapacitors in aqueous electrolyte exhibit a significantly enhanced specific capacitance (2184 F g−1 at 1 A g−1) and energy density (91.76 W h kg−1 at 825.84 W kg−1) due to the pronounced synergistic effect between Ni2+ and Co2+. Meanwhile, the Ni–Co LDH hybrid nanosheets as electrode materials have excellent long-life cycling stability, retaining 88.5% of the initial capacitance after 2000 cycles. Thereby, the Ni–Co nanocomposites are promising electrode materials for high-energy-density long-life cycling supercapacitors.

Graphical abstract: Ultrathin porous nickel–cobalt hydroxide nanosheets for high-performance supercapacitor electrodes

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Jan 2015, accepted on 02 Feb 2015 and first published on 02 Feb 2015


Article type: Paper
DOI: 10.1039/C5RA01294E
RSC Adv., 2015,5, 17007-17013

  •   Request permissions

    Ultrathin porous nickel–cobalt hydroxide nanosheets for high-performance supercapacitor electrodes

    X. Zheng, Z. Gu, Q. Hu, B. Geng and X. Zhang, RSC Adv., 2015, 5, 17007
    DOI: 10.1039/C5RA01294E

Search articles by author

Spotlight

Advertisements