W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage

W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage

Recently, composites of MXenes and two-dimensional transition metal dichalcogenides have emerged as promising materials for energy storage applications. In this study, W<sub>2</sub>C/WS<sub>2</sub> alloy nanoflowers (NFs) were prepared by a facile hydrothermal method. The all...

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Main Authors: Thang Phan Nguyen, Il Tae Kim
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Nanomaterials
Subjects:
W<sub>2</sub>C
WS<sub>2</sub>
hydrothermal
nanoflowers
lithium-ion batteries
Online Access:https://www.mdpi.com/2079-4991/10/7/1336
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spelling doaj-56a6638dc0c5440bb3c1a89f562d9a3f2020-11-25T03:47:52ZengMDPI AGNanomaterials2079-49912020-07-01101336133610.3390/nano10071336W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion StorageThang Phan Nguyen0Il Tae Kim1Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do 13120, KoreaDepartment of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do 13120, KoreaRecently, composites of MXenes and two-dimensional transition metal dichalcogenides have emerged as promising materials for energy storage applications. In this study, W<sub>2</sub>C/WS<sub>2</sub> alloy nanoflowers (NFs) were prepared by a facile hydrothermal method. The alloy NFs showed a particle size of 200 nm–1 μm, which could be controlled. The electrochemical performance of the as-prepared alloy NFs was investigated to evaluate their potential for application as lithium-ion battery (LIB) anodes. The incorporation of W<sub>2</sub>C in the WS<sub>2</sub> NFs improved their electronic properties. Among them, the W<sub>2</sub>C/WS<sub>2</sub>_4h NF electrode showed the best electrochemical performance with an initial discharge capacity of 1040 mAh g<sup>−1</sup> and excellent cyclability corresponding to a reversible capacity of 500 mAh g<sup>−1</sup> after 100 cycles compared to that of the pure WS<sub>2</sub> NF electrode. Therefore, the incorporation of W<sub>2</sub>C is a promising approach to improve the performance of LIB anode materials.https://www.mdpi.com/2079-4991/10/7/1336W<sub>2</sub>CWS<sub>2</sub>hydrothermalnanoflowerslithium-ion batteries
collection DOAJ
language English
format Article
sources DOAJ
author Thang Phan Nguyen
Il Tae Kim
spellingShingle Thang Phan Nguyen
Il Tae Kim
W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage
Nanomaterials
W<sub>2</sub>C
WS<sub>2</sub>
hydrothermal
nanoflowers
lithium-ion batteries
author_facet Thang Phan Nguyen
Il Tae Kim
author_sort Thang Phan Nguyen
title W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage
title_short W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage
title_full W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage
title_fullStr W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage
title_full_unstemmed W<sub>2</sub>C/WS<sub>2</sub> Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage
title_sort w<sub>2</sub>c/ws<sub>2</sub> alloy nanoflowers as anode materials for lithium-ion storage
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2020-07-01
description Recently, composites of MXenes and two-dimensional transition metal dichalcogenides have emerged as promising materials for energy storage applications. In this study, W<sub>2</sub>C/WS<sub>2</sub> alloy nanoflowers (NFs) were prepared by a facile hydrothermal method. The alloy NFs showed a particle size of 200 nm–1 μm, which could be controlled. The electrochemical performance of the as-prepared alloy NFs was investigated to evaluate their potential for application as lithium-ion battery (LIB) anodes. The incorporation of W<sub>2</sub>C in the WS<sub>2</sub> NFs improved their electronic properties. Among them, the W<sub>2</sub>C/WS<sub>2</sub>_4h NF electrode showed the best electrochemical performance with an initial discharge capacity of 1040 mAh g<sup>−1</sup> and excellent cyclability corresponding to a reversible capacity of 500 mAh g<sup>−1</sup> after 100 cycles compared to that of the pure WS<sub>2</sub> NF electrode. Therefore, the incorporation of W<sub>2</sub>C is a promising approach to improve the performance of LIB anode materials.
topic W<sub>2</sub>C
WS<sub>2</sub>
hydrothermal
nanoflowers
lithium-ion batteries
url https://www.mdpi.com/2079-4991/10/7/1336
work_keys_str_mv AT thangphannguyen wsub2subcwssub2suballoynanoflowersasanodematerialsforlithiumionstorage
AT iltaekim wsub2subcwssub2suballoynanoflowersasanodematerialsforlithiumionstorage
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