Jump to main content
Jump to site search

Issue 66, 2018
Previous Article Next Article

Hierarchical three-dimensional manganese doped cobalt phosphide nanowire decorated nanosheet cluster arrays for high-performance electrochemical pseudocapacitor electrodes

Author affiliations

Abstract

Ternary metal phosphides with a self-assembled hierarchical nanostructure are promising electrode materials for energy storage and conversion, due to the unique architecture and synergistic effects in bimetallic nanostructures. In this communication, we demonstrate hierarchical Mn-doped cobalt phosphide nanowire decorated nanosheet cluster arrays with robust adhesion on Ni foam (Mn–CoP/NF) as a binder-free electrode for supercapacitors. Such a 3D electrode exhibits boosted areal specific capacitance over that for a single metal counterpart, with the accomplishment of 8.66 F cm−2 capacitance at 1 mA cm−2. Utilizing the Mn–CoP/NF electrode as an anode and an activated carbon (AC) electrode as a cathode, an asymmetric supercapacitor (ASC) of Mn–CoP//AC attains a high area capacitance of 2.05 F cm−2 at 5 mA cm−2 and a high capacitance retention of 88.9% after 4000 cycles. In addition, the assembled ASC shows superior electrochemical performances with a high energy density of 35.21 W h kg−1 at a power density of 193 W kg−1 and of 30.87 W h kg−1 even at 1939 W kg−1.

Graphical abstract: Hierarchical three-dimensional manganese doped cobalt phosphide nanowire decorated nanosheet cluster arrays for high-performance electrochemical pseudocapacitor electrodes

Back to tab navigation

Supplementary files

Publication details

The article was received on 30 Mar 2018, accepted on 07 Jul 2018 and first published on 09 Jul 2018


Article type: Communication
DOI: 10.1039/C8CC02475H
Citation: Chem. Commun., 2018,54, 9234-9237
  •   Request permissions

    Hierarchical three-dimensional manganese doped cobalt phosphide nanowire decorated nanosheet cluster arrays for high-performance electrochemical pseudocapacitor electrodes

    G. Zhu, L. Yang, W. Wang, M. Ma, J. Zhang, H. Wen, D. Zheng and Y. Yao, Chem. Commun., 2018, 54, 9234
    DOI: 10.1039/C8CC02475H

Search articles by author

Spotlight

Advertisements