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Graphite-like polyoxometalate-based metal–organic framework as an efficient anode for lithium ion batteries

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Abstract

A new polyoxometalate (POM) pillared metal–organic framework (POMOF), [Cu24(Trz)16(H2O)Cl4(HPMo12O40)] (Cu-POM, Trz = 1,2,3-triazole), was synthesized and characterized. Crystal analysis reveals that the Keggin POMs are inserted into copper–triazole layers with a graphite-like structure generating a POM-supported porous three-dimensional framework. Owing to the combination of the multi-electron redox property of POM units and the open porous framework, Cu-POM can be utilized as an anode material for lithium ion batteries (LIBs), and exhibits a reversible capacity of 525 mA h g−1 at a current density of 100 mA g−1 after 100 cycles. Moreover, to illustrate lithium storage, the impedance spectra of compound Cu-POM during the first and 100th charge process have also been studied. The study of Cu-POM in this work might guide the development of POM-based electrode materials for LIBs.

Graphical abstract: Graphite-like polyoxometalate-based metal–organic framework as an efficient anode for lithium ion batteries

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Article information


Submitted
07 Dec 2019
Accepted
04 Jan 2020
First published
03 Feb 2020

CrystEngComm, 2020, Advance Article
Article type
Paper

Graphite-like polyoxometalate-based metal–organic framework as an efficient anode for lithium ion batteries

X. Yang, P. Zhu, X. Ma, W. Li, Z. Tan and J. Sha, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01936G

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