Jump to main content
Jump to site search

Issue 15, 2016
Previous Article Next Article

Superior sodium-ion storage performance of Co3O4@nitrogen-doped carbon: derived from a metal–organic framework

Author affiliations

Abstract

Nitrogen-doped carbon coated Co3O4 nanoparticles (Co3O4@NC) with high Na-ion storage capacity and unprecedented long-life cycling stability are reported in this paper. The Co3O4@NC was derived from a metal–organic framework ZIF-67, where the Co ions and organic linkers were, respectively, converted to Co3O4 nanoparticle cores and nitrogen-doped carbon shells through a controlled two-step annealing process. The Co3O4@NC shows a porous nature with a surface area of 101 m2 g−1. When applied as an anode for sodium ion batteries (SIBs), Co3O4@NC delivers a high reversible capacity of 506, 317, and 263 mA h g−1 at 100, 400, and 1000 mA g−1, respectively. A capacity degradation of 0.03% per cycle over 1100 cycles was achieved at a high current density of 1000 mA g−1. The outstanding Na-ion storage performance can be ascribed to the nitrogen-doped carbon coating (NC), which facilitates the capacitive reaction, minimizes the volume changes of Co3O4, and also enhances the electronic conductivity. This work sheds light on how to develop high-performance metal oxide@NC nanocomposites for SIBs.

Graphical abstract: Superior sodium-ion storage performance of Co3O4@nitrogen-doped carbon: derived from a metal–organic framework

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Jan 2016, accepted on 29 Jan 2016 and first published on 29 Jan 2016


Article type: Paper
DOI: 10.1039/C6TA00236F
Citation: J. Mater. Chem. A, 2016,4, 5428-5435
  •   Request permissions

    Superior sodium-ion storage performance of Co3O4@nitrogen-doped carbon: derived from a metal–organic framework

    Y. Wang, C. Wang, Y. Wang, H. Liu and Z. Huang, J. Mater. Chem. A, 2016, 4, 5428
    DOI: 10.1039/C6TA00236F

Search articles by author

Spotlight

Advertisements