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  • Title: Synthesis of nanoparticle-assembled Zn3(VO4)2 porous networks via a facile coprecipitation method for high-rate and long-life lithium-ion storage.
    Author: Gu Y, Han Y, Hou W, Lan H, Zhang H, Deng X, Wang L, Liu J.
    Journal: Dalton Trans; 2020 Feb 21; 49(7):2112-2120. PubMed ID: 31993596.
    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 a current density of 1.0 A g-1, the Zn3(VO4)2 porous networks could register a high reversible discharge capacity of 773 mA h g-1 and the capacity retention was 94% after 700 cycles. Moreover, a remarkable reversible discharge capacity of 445 mA h g-1 was achieved at a current density of 5 A g-1 after 1200 cycles. Even at a higher current density of 10.0 A g-1, a high reversible capacity of 527 mA h g-1 could be delivered, which still remained at 163 mA h g-1 after 1200 cycles. This superior performance is attributed to the 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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