Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage
The design of nanostructures with sufficient active sites is considerably challenging but highly desirable for energy applications. Herein, highly active tubular MoS2 structures on flexible three-dimensional graphene foam are firstly produced by a bottom-up approach using Ni3S2 nanowires as the prec...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2017
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| Online Access: | https://hdl.handle.net/10356/82341 http://hdl.handle.net/10220/43519 |
| _version_ | 1826129782834724864 |
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| author | Wang, Jin Liu, Jilei Yang, Hao Chen, Zhen Lin, Jianyi Shen, Ze Xiang |
| author2 | Interdisciplinary Graduate School (IGS) |
| author_facet | Interdisciplinary Graduate School (IGS) Wang, Jin Liu, Jilei Yang, Hao Chen, Zhen Lin, Jianyi Shen, Ze Xiang |
| author_sort | Wang, Jin |
| collection | NTU |
| description | The design of nanostructures with sufficient active sites is considerably challenging but highly desirable for energy applications. Herein, highly active tubular MoS2 structures on flexible three-dimensional graphene foam are firstly produced by a bottom-up approach using Ni3S2 nanowires as the precursor and self-sacrificial template. The hierarchical tubular structures with high surface curvature expose a large fraction of edge sites and defects, which, along with high surface area, lead to excellent activity for electrocatalytic hydrogen evolution. Remarkably, the integrated hydrogen-evolving electrode operating in acidic electrolytes exhibits high stability and excellent electrocatalytic activity with a low onset overpotential of 77 mV, Tafel slope of 52 mV per decade and large exchange current density of 6.4 × 10−2 mA cm−2. When evaluated as an anode material for LIBs, these hierarchical MoS2 nanotubes manifest high specific capacity and excellent rate capability as well as extremely long-term cycle stability. This work elucidates how structure design of nanomaterials can significantly impact the surface structure at the atomic scale, enabling new opportunities for enhancing structure properties and other important technological applications. |
| first_indexed | 2024-10-01T07:46:11Z |
| format | Journal Article |
| id | ntu-10356/82341 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:46:11Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/823412021-01-05T06:49:25Z Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage Wang, Jin Liu, Jilei Yang, Hao Chen, Zhen Lin, Jianyi Shen, Ze Xiang Interdisciplinary Graduate School (IGS) School of Physical and Mathematical Sciences Energy Research Institute @ NTU (ERI@N) Hierarchical MoS2 nanotubes Nanostructures The design of nanostructures with sufficient active sites is considerably challenging but highly desirable for energy applications. Herein, highly active tubular MoS2 structures on flexible three-dimensional graphene foam are firstly produced by a bottom-up approach using Ni3S2 nanowires as the precursor and self-sacrificial template. The hierarchical tubular structures with high surface curvature expose a large fraction of edge sites and defects, which, along with high surface area, lead to excellent activity for electrocatalytic hydrogen evolution. Remarkably, the integrated hydrogen-evolving electrode operating in acidic electrolytes exhibits high stability and excellent electrocatalytic activity with a low onset overpotential of 77 mV, Tafel slope of 52 mV per decade and large exchange current density of 6.4 × 10−2 mA cm−2. When evaluated as an anode material for LIBs, these hierarchical MoS2 nanotubes manifest high specific capacity and excellent rate capability as well as extremely long-term cycle stability. This work elucidates how structure design of nanomaterials can significantly impact the surface structure at the atomic scale, enabling new opportunities for enhancing structure properties and other important technological applications. MOE (Min. of Education, S’pore) Published version 2017-08-02T03:30:19Z 2019-12-06T14:53:39Z 2017-08-02T03:30:19Z 2019-12-06T14:53:39Z 2016 Journal Article Wang, J., Liu, J., Yang, H., Chen, Z., Lin, J., & Shen, Z. X. (2016). Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage. Journal of Materials Chemistry A, 4(20), 7565-7572. 2050-7488 https://hdl.handle.net/10356/82341 http://hdl.handle.net/10220/43519 10.1039/C6TA02034H en Journal of Materials Chemistry A © 2016 The author(s). This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. 8 p. application/pdf |
| spellingShingle | Hierarchical MoS2 nanotubes Nanostructures Wang, Jin Liu, Jilei Yang, Hao Chen, Zhen Lin, Jianyi Shen, Ze Xiang Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage |
| title | Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage |
| title_full | Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage |
| title_fullStr | Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage |
| title_full_unstemmed | Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage |
| title_short | Active sites-enriched hierarchical MoS2 nanotubes: highly active and stable architecture for boosting hydrogen evolution and lithium storage |
| title_sort | active sites enriched hierarchical mos2 nanotubes highly active and stable architecture for boosting hydrogen evolution and lithium storage |
| topic | Hierarchical MoS2 nanotubes Nanostructures |
| url | https://hdl.handle.net/10356/82341 http://hdl.handle.net/10220/43519 |
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