Issue 40, 2020

Binary zinc–cobalt metal–organic framework derived mesoporous ZnCo2O4@NC polyhedron as a high-performance lithium-ion battery anode

Abstract

Ternary transition metal oxides have attracted increasing attention due to their many merits, and will enhance electrochemical performance via the synergistic effects of the different single metal oxides. Herein, ZnCo2O4 nanoparticles encapsulated in nitrogen-doped carbon (ZnCo2O4@NC) polyhedrons have been successfully prepared through a facile two-step method. The as-prepared products had a uniform size and consisted mainly of interconnected ZnCo2O4 nanoparticles (NPs), which were uniformly distributed in the materials. As a result, the ZnCo2O4@NC polyhedrons of ZnCo-700 show a superb specific capacity of approximately 1601 mA h g−1 over 50 cycles at 0.1 A g−1. A reversible capacity of 1082 mA h g−1 was retained after 300 cycles at 1 A g−1, and a superb reversible capacity of 775 mA h g−1 was attained even when the current density was increased to 5 A g−1. These distinguished electrochemical properties could be ascribed mainly to the uniquely advantageous structural and compositional features.

Graphical abstract: Binary zinc–cobalt metal–organic framework derived mesoporous ZnCo2O4@NC polyhedron as a high-performance lithium-ion battery anode

Supplementary files

Article information

Article type
Paper
Submitted
07 Sep 2020
Accepted
25 Sep 2020
First published
25 Sep 2020

Dalton Trans., 2020,49, 14237-14242

Binary zinc–cobalt metal–organic framework derived mesoporous ZnCo2O4@NC polyhedron as a high-performance lithium-ion battery anode

R. Sun, Z. Qin, Z. Li, H. Fan and S. Lu, Dalton Trans., 2020, 49, 14237 DOI: 10.1039/D0DT03132A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements