Issue 21, 2021

Nanocavity-enriched Co3O4@ZnCo2O4@NC porous nanowires derived from 1D metal coordination polymers for fast Li+ diffusion kinetics and super Li+ storage

Abstract

Nanocavity-enriched Co3O4@ZnCo2O4@NC porous nanowires have been successfully prepared by a two-step annealing process of one-dimensional (1D) coordination polymer precursors. Such unique nanowires with nanocavity-based porous channels can provide a large specific surface area, which allows fast electron/ion transfer and alleviates the volume expansion caused by strain during the charge/discharge processes. While used as the anode material of lithium-ion batteries (LIBs), Co3O4@ZnCo2O4@NC electrodes exhibit outstanding rate capacity and cycling stability, such as a high reversible capacity of 931 mA h g−1 after 50 cycles at a current density of 0.1 A g−1 and a long-term cycling efficiency of 649 mA h g−1 after 600 cycles at 1 A g−1. This coordination polymer template method lays a solid foundation for the design and preparation of bimetal oxide materials with outstanding electrochemical performance for LIBs.

Graphical abstract: Nanocavity-enriched Co3O4@ZnCo2O4@NC porous nanowires derived from 1D metal coordination polymers for fast Li+ diffusion kinetics and super Li+ storage

Supplementary files

Article information

Article type
Paper
Submitted
12 Feb 2021
Accepted
14 Apr 2021
First published
15 Apr 2021

Dalton Trans., 2021,50, 7277-7283

Nanocavity-enriched Co3O4@ZnCo2O4@NC porous nanowires derived from 1D metal coordination polymers for fast Li+ diffusion kinetics and super Li+ storage

H. Wang, Y. Zheng, Z. Peng, X. Liu, C. Qu, Z. Huang, Z. Cai, H. Fan and Y. Zhang, Dalton Trans., 2021, 50, 7277 DOI: 10.1039/D1DT00475A

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