Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy

The realization of sodium-ion devices with high-power density and long-cycle capability is challenging due to the difficulties of carrier diffusion and electrode fragmentation in transition metal selenide anodes. Herein, a Mo/W-based metal-organic framework is constructed by a one-step method throug...

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Main Authors: Wang, Jian, Shao, Yachuan, Ma, Yanqiang, Zhang, Di, Aziz, Shujahadeen B., Li, Zhaojin, Woo, Haw Jiunn, Subramaniam, Ramesh T., Wang, Bo
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Published: American Chemical Society 2024
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Online Access:http://eprints.um.edu.my/45403/
https://doi.org/10.1021/acsnano.4c00599
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spelling my.um.eprints.454032024-10-21T02:57:19Z http://eprints.um.edu.my/45403/ Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy Wang, Jian Shao, Yachuan Ma, Yanqiang Zhang, Di Aziz, Shujahadeen B. Li, Zhaojin Woo, Haw Jiunn Subramaniam, Ramesh T. Wang, Bo Q Science (General) QC Physics The realization of sodium-ion devices with high-power density and long-cycle capability is challenging due to the difficulties of carrier diffusion and electrode fragmentation in transition metal selenide anodes. Herein, a Mo/W-based metal-organic framework is constructed by a one-step method through rational selection, after which MoWSe/C heterostructures with large angles are synthesized by a facile selenization/carbonization strategy. Through physical characterization and theoretical calculations, the synthesized MoWSe/C electrode delivers obvious structural advantages and excellent electrochemical performance in an ethylene glycol dimethyl ether electrolyte. Furthermore, the electrochemical vehicle mechanism of ions in the electrolyte is systematically revealed through comparative analyses. Resultantly, ether-based electrolytes advantageously construct stable solid electrolyte interfaces and avoid electrolyte decomposition. Based on the above benefits, the Na half-cell assembled with MoWSe/C electrodes demonstrated excellent rate capability and a high specific capacity of 347.3 mA h g(-1) even after cycling 2000 cycles at 10 A g(-1). Meanwhile, the constructed sodium-ion capacitor maintains similar to 80% capacity retention after 11,000 ultralong cycles at a high-power density of 3800 W kg(-1). The findings can broaden the mechanistic understanding of conversion anodes in different electrolytes and provide a reference for the structural design of anodes with high capacity, fast kinetics, and long-cycle stability. American Chemical Society 2024-03 Article PeerReviewed Wang, Jian and Shao, Yachuan and Ma, Yanqiang and Zhang, Di and Aziz, Shujahadeen B. and Li, Zhaojin and Woo, Haw Jiunn and Subramaniam, Ramesh T. and Wang, Bo (2024) Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy. ACS Nano, 18 (14). pp. 10230-10242. ISSN 1936-0851, DOI https://doi.org/10.1021/acsnano.4c00599 <https://doi.org/10.1021/acsnano.4c00599>. https://doi.org/10.1021/acsnano.4c00599 10.1021/acsnano.4c00599
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Wang, Jian
Shao, Yachuan
Ma, Yanqiang
Zhang, Di
Aziz, Shujahadeen B.
Li, Zhaojin
Woo, Haw Jiunn
Subramaniam, Ramesh T.
Wang, Bo
Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy
description The realization of sodium-ion devices with high-power density and long-cycle capability is challenging due to the difficulties of carrier diffusion and electrode fragmentation in transition metal selenide anodes. Herein, a Mo/W-based metal-organic framework is constructed by a one-step method through rational selection, after which MoWSe/C heterostructures with large angles are synthesized by a facile selenization/carbonization strategy. Through physical characterization and theoretical calculations, the synthesized MoWSe/C electrode delivers obvious structural advantages and excellent electrochemical performance in an ethylene glycol dimethyl ether electrolyte. Furthermore, the electrochemical vehicle mechanism of ions in the electrolyte is systematically revealed through comparative analyses. Resultantly, ether-based electrolytes advantageously construct stable solid electrolyte interfaces and avoid electrolyte decomposition. Based on the above benefits, the Na half-cell assembled with MoWSe/C electrodes demonstrated excellent rate capability and a high specific capacity of 347.3 mA h g(-1) even after cycling 2000 cycles at 10 A g(-1). Meanwhile, the constructed sodium-ion capacitor maintains similar to 80% capacity retention after 11,000 ultralong cycles at a high-power density of 3800 W kg(-1). The findings can broaden the mechanistic understanding of conversion anodes in different electrolytes and provide a reference for the structural design of anodes with high capacity, fast kinetics, and long-cycle stability.
format Article
author Wang, Jian
Shao, Yachuan
Ma, Yanqiang
Zhang, Di
Aziz, Shujahadeen B.
Li, Zhaojin
Woo, Haw Jiunn
Subramaniam, Ramesh T.
Wang, Bo
author_facet Wang, Jian
Shao, Yachuan
Ma, Yanqiang
Zhang, Di
Aziz, Shujahadeen B.
Li, Zhaojin
Woo, Haw Jiunn
Subramaniam, Ramesh T.
Wang, Bo
author_sort Wang, Jian
title Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy
title_short Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy
title_full Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy
title_fullStr Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy
title_full_unstemmed Facilitating Rapid Na+ Storage through MoWSe/C Heterostructure Construction and Synergistic Electrolyte Matching Strategy
title_sort facilitating rapid na+ storage through mowse/c heterostructure construction and synergistic electrolyte matching strategy
publisher American Chemical Society
publishDate 2024
url http://eprints.um.edu.my/45403/
https://doi.org/10.1021/acsnano.4c00599
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