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Synthesis of nanoparticle-assembled Zn3(VO4)2 porous networks via a faile coprecipitation method for high-rate and long-life lithium-ion storage

Abstract

A simple coprecipitation route followed by a calcination process was developed to prepare 2D hierarchical Zn3(VO4)2 porous networks formed by the crosslinkage of monolayered nanoparticles. As a promising anode for lithium-ion batteries, the electrochemical performance of Zn3(VO4)2 was investigated. At the current density of 1.0 A g−1, Zn3(VO4)2 porous networks can register a high reversible discharge capacity of 773 mAh g−1 and the capacity retention is 94% after 700 cycles. Moreover, a remarkable reversible discharge capacity of 445 mAh g−1 is achieved at the current density of 5 A g−1 after 1200 cycles. Even at higher current density of 10.0 A g−1, a high reversible capacity of 527 mAh g−1 can be delivered, which still retains at 163 mAh g−1 after 1200 cycles. The superior performance is attributed to unique 2D porous networks with a stable structure. This work shows a new avenue for facile, cheap, green, and mass production of zinc vanadate oxides with 2D porous hierarchical networks for next-generation energy conversion and storage devices.

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Supplementary files

Article information


Submitted
23 Nov 2019
Accepted
13 Jan 2020
First published
14 Jan 2020

Dalton Trans., 2020, Accepted Manuscript
Article type
Paper

Synthesis of nanoparticle-assembled Zn3(VO4)2 porous networks via a faile coprecipitation method for high-rate and long-life lithium-ion storage

Y. Gu, Y. Han, W. Hou, H. Lan, H. Zhang, X. Deng, L. Wang and J. Liu, Dalton Trans., 2020, Accepted Manuscript , DOI: 10.1039/C9DT04503A

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