Jump to main content
Jump to site search

Issue 36, 2018
Previous Article Next Article

Highly dispersed Zn nanoparticles confined in a nanoporous carbon network: promising anode materials for sodium and potassium ion batteries

Author affiliations

Abstract

Highly dispersed Zn nanoparticles confined in a nanoporous carbon network (ZNP/C) are prepared by directly annealing a Zn-containing metal–organic framework in an inert atmosphere and investigated as an anode material for sodium and potassium ion batteries for the first time. ZNP/C has unique structural features, such as highly dispersed Zn nanoparticles, a nanoporous carbon network and a high surface area, which can efficiently enhance the reactivity, facilitate ion/electron transportation and buffer volume changes, and thus greatly improve its Na/K storage performance. As a sodium ion battery anode, ZNP/C-600 shows a high capacity of 361 mA h g−1 over 100 cycles at 0.1 A g−1, and an ultrahigh capacity of 227 mA h g−1 is sustained after 1000 cycles at 2 A g−1. When employed as a potassium ion battery anode, ZNP/C-600 exhibits a high capacity of 200 mA h g−1 over 100 cycles at 0.1 A g−1, and a stable capacity of 145 mA h g−1 over 300 cycles at 0.5 A g−1. Qualitative and quantitative analyses reveal that capacitance and diffusion mechanisms account for the superior Na/K storage performance, in which the capacitance plays a significant role.

Graphical abstract: Highly dispersed Zn nanoparticles confined in a nanoporous carbon network: promising anode materials for sodium and potassium ion batteries

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Jun 2018, accepted on 30 Jul 2018 and first published on 31 Jul 2018


Article type: Paper
DOI: 10.1039/C8TA05297B
Citation: J. Mater. Chem. A, 2018,6, 17371-17377
  •   Request permissions

    Highly dispersed Zn nanoparticles confined in a nanoporous carbon network: promising anode materials for sodium and potassium ion batteries

    C. Yan, X. Gu, L. Zhang, Y. Wang, L. Yan, D. Liu, L. Li, P. Dai and X. Zhao, J. Mater. Chem. A, 2018, 6, 17371
    DOI: 10.1039/C8TA05297B

Search articles by author

Spotlight

Advertisements