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An ultra-small few-layer MoS2-hierarchical porous carbon fiber composite obtained via nanocasting synthesis for sodium-ion battery anodes with excellent long-term cycling performance.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 4/7/2019, Vol. 48 Issue 13, p4149-4156, 8p
- Publication Year :
- 2019
-
Abstract
- Rational fabrication of anode electrodes for sodium-ion batteries remains a challenge due to the problem of sluggish Na<superscript>+</superscript> diffusion kinetics, large volume expansion etc. Significant efforts, such as fabricating carbon composites and novel nanostructures, have been devoted to the development of anode materials. Herein, an ultra-small few-layer MoS<subscript>2</subscript> nanostructure confined on a hierarchical porous carbon fiber composite was synthesized through the nanocasting route using a novel hierarchical porous carbon fiber as the template. As an anode material, the composite displays outstanding electrochemical performance for sodium-ion batteries. For instance, it delivers high reversible capacities (491 mA h g<superscript>−1</superscript> after 50 cycles at 0.1 A g<superscript>−1</superscript>), high rate performance (387 mA h g<superscript>−1</superscript> at 2 A g<superscript>−1</superscript>) and long-term cycling stability (234 mA h g<superscript>−1</superscript> at 1 A g<superscript>−1</superscript> after 3000 cycles). Note that it shows one of the best long-term cycling properties reported to date for MoS<subscript>2</subscript>-based anode materials for sodium-ion batteries. This regulation strategy may offer new insights into the fabrication of high-performance anode materials for sodium-ion batteries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 48
- Issue :
- 13
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 135553443
- Full Text :
- https://doi.org/10.1039/c8dt04744h