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Nanohybridization of Keggin polyoxometalate clusters and reduced graphene oxide for lithium-ion batteries.

ABSTRACT: The nanocomposites of reduced graphene oxide (RGO) and polyoxometalates (POMs) have been considered to be effective to boost more Li+ to participate in intercalation/deintercalation process of lithium-ion batteries (LIBs). In this paper, a nanocomposite (PMo12@RGO-AIL) with electrostatic interaction of RGO and Keggin-type [PMo12O40]3- has been fabricated and characterized by XRD, XPS, SEM, and TEM. To prepare PMo12@RGO-AIL, a strategy of covalent modification is developed between amino-based ionic liquid and RGO, helping to achieve the uniform dispersion of [PMo12O40]3-. When the PMo12@RGO-AIL was used as a cathode for LIBs, it could exhibit more excellent reversible capacity, cycle stability, and rate capability than those of samples without modifying by ionic liquids.

Supplementary information

The online version contains supplementary material available at 10.1007/s11051-020-05108-x.

SUBMITTER: Shi X 

PROVIDER: S-EPMC7857345 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Nanohybridization of Keggin polyoxometalate clusters and reduced graphene oxide for lithium-ion batteries.

Shi Xiaoyu X   Chu Yiyue Y   Wang Ya Y   Fang Zhiqiang Z   Liu Zixuan Z   Deng Yijia Y   Dong Qingsong Q   Hao Zhaomin Z  

Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 20200101 2

The nanocomposites of reduced graphene oxide (RGO) and polyoxometalates (POMs) have been considered to be effective to boost more Li<sup>+</sup> to participate in intercalation/deintercalation process of lithium-ion batteries (LIBs). In this paper, a nanocomposite (PMo<sub>12</sub>@RGO-AIL) with electrostatic interaction of RGO and Keggin-type [PMo<sub>12</sub>O<sub>40</sub>]<sup>3-</sup> has been fabricated and characterized by XRD, XPS, SEM, and TEM. To prepare PMo<sub>12</sub>@RGO-AIL, a stra  ...[more]

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