Tags

Type your tag names separated by a space and hit enter

Synthesis of long hierarchical MoS2 nanofibers assembled from nanosheets with an expanded interlayer distance for achieving superb Na-ion storage performance.
Nanoscale. 2017 Oct 19; 9(40):15558-15565.N

Abstract

MoS2 material is considered as a promising anode material candidate in Na-ion batteries (NIBs) due to its high theoretical capacity and layered structure. However, MoS2 nanosheets usually tend to restack or aggregate during the synthesis and cycling process, which makes the advantages of the separated nanosheets disappear. Here, we present a PVP-assisted synthesis for growing long hierarchical MoS2 nanofibers with a length up to 74.5 μm, which were further assembled from intercrossed curly nanosheets with expanded (002) interlayer spacings in the range of 0.62 nm to 1.14 nm. Such architectural design simultaneously combines multiple-scale structural features that are desired for Na-ion storage. On the one hand, the nanosheets can provide a large surface area which is in contact with the electrolyte, a short Na-ion diffusion pathway from the lateral side and facile Na-ion insertion and extraction through the expanded (002) interlayer; on the other hand, the hierarchical MoS2 nanofibers possess a one dimensional structure and a suitable amount of carbon, which can both serve as an electrical highway and prevent them from restacking, resulting in an enhanced electrochemical performance. When used as an anode in NIBs, they demonstrated excellent cycling performance (537 mA h g-1 at 0.1 A g-1 after 200 cycles, and 370 mA h g-1 at 2 A g-1 over 200 cycles) and outstanding rate capability (329 mA h g-1 at 10 A g-1).

Authors+Show Affiliations

Institute for Solar Energy Systems, School of Physics, Sun Yat-sen University, Guangzhou 510275, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28984883

Citation

Gao, Zhonggui, et al. "Synthesis of Long Hierarchical MoS2 Nanofibers Assembled From Nanosheets With an Expanded Interlayer Distance for Achieving Superb Na-ion Storage Performance." Nanoscale, vol. 9, no. 40, 2017, pp. 15558-15565.
Gao Z, Yu X, Zhao J, et al. Synthesis of long hierarchical MoS2 nanofibers assembled from nanosheets with an expanded interlayer distance for achieving superb Na-ion storage performance. Nanoscale. 2017;9(40):15558-15565.
Gao, Z., Yu, X., Zhao, J., Zhao, W., Xu, R., Liu, Y., & Shen, H. (2017). Synthesis of long hierarchical MoS2 nanofibers assembled from nanosheets with an expanded interlayer distance for achieving superb Na-ion storage performance. Nanoscale, 9(40), 15558-15565. https://doi.org/10.1039/c7nr06021a
Gao Z, et al. Synthesis of Long Hierarchical MoS2 Nanofibers Assembled From Nanosheets With an Expanded Interlayer Distance for Achieving Superb Na-ion Storage Performance. Nanoscale. 2017 Oct 19;9(40):15558-15565. PubMed PMID: 28984883.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synthesis of long hierarchical MoS2 nanofibers assembled from nanosheets with an expanded interlayer distance for achieving superb Na-ion storage performance. AU - Gao,Zhonggui, AU - Yu,Xiao, AU - Zhao,Jiang, AU - Zhao,Wenxia, AU - Xu,Ruimei, AU - Liu,Yong, AU - Shen,Hui, PY - 2017/10/7/pubmed PY - 2017/10/7/medline PY - 2017/10/7/entrez SP - 15558 EP - 15565 JF - Nanoscale JO - Nanoscale VL - 9 IS - 40 N2 - MoS2 material is considered as a promising anode material candidate in Na-ion batteries (NIBs) due to its high theoretical capacity and layered structure. However, MoS2 nanosheets usually tend to restack or aggregate during the synthesis and cycling process, which makes the advantages of the separated nanosheets disappear. Here, we present a PVP-assisted synthesis for growing long hierarchical MoS2 nanofibers with a length up to 74.5 μm, which were further assembled from intercrossed curly nanosheets with expanded (002) interlayer spacings in the range of 0.62 nm to 1.14 nm. Such architectural design simultaneously combines multiple-scale structural features that are desired for Na-ion storage. On the one hand, the nanosheets can provide a large surface area which is in contact with the electrolyte, a short Na-ion diffusion pathway from the lateral side and facile Na-ion insertion and extraction through the expanded (002) interlayer; on the other hand, the hierarchical MoS2 nanofibers possess a one dimensional structure and a suitable amount of carbon, which can both serve as an electrical highway and prevent them from restacking, resulting in an enhanced electrochemical performance. When used as an anode in NIBs, they demonstrated excellent cycling performance (537 mA h g-1 at 0.1 A g-1 after 200 cycles, and 370 mA h g-1 at 2 A g-1 over 200 cycles) and outstanding rate capability (329 mA h g-1 at 10 A g-1). SN - 2040-3372 UR - https://www.unboundmedicine.com/medline/citation/28984883/Synthesis_of_long_hierarchical_MoS2_nanofibers_assembled_from_nanosheets_with_an_expanded_interlayer_distance_for_achieving_superb_Na_ion_storage_performance_ L2 - https://doi.org/10.1039/c7nr06021a DB - PRIME DP - Unbound Medicine ER -
Try the Free App:
Prime PubMed app for iOS iPhone iPad
Prime PubMed app for Android
Prime PubMed is provided
free to individuals by:
Unbound Medicine.