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Inter-overlapped MoS2/C composites with large-interlayer-spacing for high-performance sodium-ion batteries.
Nanoscale Horiz. 2020 Jun 29; 5(7):1127-1135.NH

Abstract

As a two-dimensional layered material with a structure analogous to that of graphene, molybdenum disulfide (MoS2) holds great promise in sodium-ion batteries (SIBs). However, recent research findings have revealed some disadvantages in two-dimensional (2D) materials such as poor interlayer conductivity and structural instability, resulting in poor rate performance and short cycle life for SIBs. Herein, we designed MoS2 nanoflowers with an ultra-wide spacing interlayer (W-MoS2/C) anchored on special double carbon tubes to construct three-dimensional (3D) nanostructures. When tested as an anode material in a SIB, the as-prepared CNT@NCT@W-MoS2/C sample achieves high capacities (530 and 230 mA h g-1 at current densities of 0.1 and 2 A g-1, respectively). Density functional theory (DFT) calculations demonstrate that the ultra-wide spacing MoS2/C structure is beneficial for the chemical adsorption of sodium ions and facilitates redox reactions. The wide interlayer spacing and the presence of an intermediate carbon layer provide a rapid diffusion channel for ions and offer a free space for volume expansion of the electrode material.

Authors+Show Affiliations

Key Laboratory of Microelectronics and Energy of Henan Province, Henan Joint International Research Laboratory of New Energy Storage Technology, School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, P. R. China. ysluo@xynu.edu.cn zdy@xynu.edu.cn.Key Laboratory of Microelectronics and Energy of Henan Province, Henan Joint International Research Laboratory of New Energy Storage Technology, School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, P. R. China. ysluo@xynu.edu.cn zdy@xynu.edu.cn.Key Laboratory of Microelectronics and Energy of Henan Province, Henan Joint International Research Laboratory of New Energy Storage Technology, School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, P. R. China. ysluo@xynu.edu.cn zdy@xynu.edu.cn.Key Laboratory of Microelectronics and Energy of Henan Province, Henan Joint International Research Laboratory of New Energy Storage Technology, School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, P. R. China. ysluo@xynu.edu.cn zdy@xynu.edu.cn.School of Information Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China.College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China.Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China.Key Laboratory of Microelectronics and Energy of Henan Province, Henan Joint International Research Laboratory of New Energy Storage Technology, School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, P. R. China. ysluo@xynu.edu.cn zdy@xynu.edu.cn and College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061, P. R. China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32458873

Citation

Wang, Yinghui, et al. "Inter-overlapped MoS2/C Composites With Large-interlayer-spacing for High-performance Sodium-ion Batteries." Nanoscale Horizons, vol. 5, no. 7, 2020, pp. 1127-1135.
Wang Y, Yang Y, Zhang D, et al. Inter-overlapped MoS2/C composites with large-interlayer-spacing for high-performance sodium-ion batteries. Nanoscale Horiz. 2020;5(7):1127-1135.
Wang, Y., Yang, Y., Zhang, D., Wang, Y., Luo, X., Liu, X., Kim, J. K., & Luo, Y. (2020). Inter-overlapped MoS2/C composites with large-interlayer-spacing for high-performance sodium-ion batteries. Nanoscale Horizons, 5(7), 1127-1135. https://doi.org/10.1039/d0nh00152j
Wang Y, et al. Inter-overlapped MoS2/C Composites With Large-interlayer-spacing for High-performance Sodium-ion Batteries. Nanoscale Horiz. 2020 Jun 29;5(7):1127-1135. PubMed PMID: 32458873.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Inter-overlapped MoS2/C composites with large-interlayer-spacing for high-performance sodium-ion batteries. AU - Wang,Yinghui, AU - Yang,Ya, AU - Zhang,Deyang, AU - Wang,Yangbo, AU - Luo,Xiaoke, AU - Liu,Xianming, AU - Kim,Jang-Kyo, AU - Luo,Yongsong, PY - 2020/5/28/pubmed PY - 2020/5/28/medline PY - 2020/5/28/entrez SP - 1127 EP - 1135 JF - Nanoscale horizons JO - Nanoscale Horiz VL - 5 IS - 7 N2 - As a two-dimensional layered material with a structure analogous to that of graphene, molybdenum disulfide (MoS2) holds great promise in sodium-ion batteries (SIBs). However, recent research findings have revealed some disadvantages in two-dimensional (2D) materials such as poor interlayer conductivity and structural instability, resulting in poor rate performance and short cycle life for SIBs. Herein, we designed MoS2 nanoflowers with an ultra-wide spacing interlayer (W-MoS2/C) anchored on special double carbon tubes to construct three-dimensional (3D) nanostructures. When tested as an anode material in a SIB, the as-prepared CNT@NCT@W-MoS2/C sample achieves high capacities (530 and 230 mA h g-1 at current densities of 0.1 and 2 A g-1, respectively). Density functional theory (DFT) calculations demonstrate that the ultra-wide spacing MoS2/C structure is beneficial for the chemical adsorption of sodium ions and facilitates redox reactions. The wide interlayer spacing and the presence of an intermediate carbon layer provide a rapid diffusion channel for ions and offer a free space for volume expansion of the electrode material. SN - 2055-6764 UR - https://www.unboundmedicine.com/medline/citation/32458873/Inter_overlapped_MoS2/C_composites_with_large_interlayer_spacing_for_high_performance_sodium_ion_batteries_ L2 - https://doi.org/10.1039/d0nh00152j DB - PRIME DP - Unbound Medicine ER -
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