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Ultrafine MoO3 nanoparticles embedded in porous carbon nanofibers as anodes for high-performance lithium-ion batteries

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Abstract

Ultrafine MoO3 nanoparticles uniformly embedded in porous carbon nanofiber (PCNF) anodes synthesized by electrospinning are comprehensively investigated. At a carbonization temperature of 750 °C, PMMA is decomposed to form a worm-like porous carbon matrix, and ultrafine MoO3 nanoparticles (3–5 nm) are uniformly dispersed in carbon nanofibers. Electrochemical tests show that the optimized MoO3/PCNF material displays excellent capacity of 795.8 mA h g−1 after 100 cycles at a current density of 200 mA g−1 and also shows excellent rate performance at a high current density. The excellent performance is observed because MoO3 with ultrafine crystalline particles shortens the transmission path of Li+ and porous carbon nanofibers effectively relieve volume stress caused by Li+ insertion. This study presents a facile and cost-effective approach for the synthesis of high-performance electrode materials through nanostructuring and porous design.

Graphical abstract: Ultrafine MoO3 nanoparticles embedded in porous carbon nanofibers as anodes for high-performance lithium-ion batteries

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Publication details

The article was received on 30 Sep 2018, accepted on 01 Nov 2018 and first published on 02 Nov 2018


Article type: Research Article
DOI: 10.1039/C8QM00497H
Citation: Mater. Chem. Front., 2019, Advance Article
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    Ultrafine MoO3 nanoparticles embedded in porous carbon nanofibers as anodes for high-performance lithium-ion batteries

    X. Liu, Y. Liu, X. Yan, J. Lan, Y. Yu and X. Yang, Mater. Chem. Front., 2019, Advance Article , DOI: 10.1039/C8QM00497H

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