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Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance
We report a simple one-step hydrothermal strategy for the fabrication of a C-MoS(2)/rGO composite with both large surface area and high porosity for the use as advanced electrode material in lithium–sulfur batteries. Double modified defect-rich MoS(2) nanosheets are successfully prepared by introduc...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6880788/ https://www.ncbi.nlm.nih.gov/pubmed/31807410 http://dx.doi.org/10.3762/bjnano.10.217 |
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author | Tian, Chengxiang Wu, Juwei Ma, Zheng Li, Bo Li, Pengcheng Zu, Xiaotao Xiang, Xia |
author_facet | Tian, Chengxiang Wu, Juwei Ma, Zheng Li, Bo Li, Pengcheng Zu, Xiaotao Xiang, Xia |
author_sort | Tian, Chengxiang |
collection | PubMed |
description | We report a simple one-step hydrothermal strategy for the fabrication of a C-MoS(2)/rGO composite with both large surface area and high porosity for the use as advanced electrode material in lithium–sulfur batteries. Double modified defect-rich MoS(2) nanosheets are successfully prepared by introducing reduced graphene oxide (rGO) and amorphous carbon. The conductibility of the cathodes can be improved through the combination of amorphous carbon and rGO, which could also limit the dissolution of polysulfides. After annealing at different temperatures, it is found that the C-MoS(2)/rGO-6-S composite annealed at 600 °C yields a noticeably enhanced performance of lithium–sulfur batteries, with a high specific capacity of 572 mAh·g(−1) at 0.2C after 550 cycles, and 551 mAh·g(−1) even at 2C, much better than that of MoS(2)-S nanosheets (249 mAh·g(−1) and 149 mAh·g(−1)) and C-MoS(2)/rGO-S composites (334 mAh·g(−1) and 382 mAh·g(−1)). Our intended electrode design protocol and annealing process may pave the way for the construction of other high-performance metal disulfide electrodes for electrochemical energy storage. |
format | Online Article Text |
id | pubmed-6880788 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-68807882019-12-05 Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance Tian, Chengxiang Wu, Juwei Ma, Zheng Li, Bo Li, Pengcheng Zu, Xiaotao Xiang, Xia Beilstein J Nanotechnol Full Research Paper We report a simple one-step hydrothermal strategy for the fabrication of a C-MoS(2)/rGO composite with both large surface area and high porosity for the use as advanced electrode material in lithium–sulfur batteries. Double modified defect-rich MoS(2) nanosheets are successfully prepared by introducing reduced graphene oxide (rGO) and amorphous carbon. The conductibility of the cathodes can be improved through the combination of amorphous carbon and rGO, which could also limit the dissolution of polysulfides. After annealing at different temperatures, it is found that the C-MoS(2)/rGO-6-S composite annealed at 600 °C yields a noticeably enhanced performance of lithium–sulfur batteries, with a high specific capacity of 572 mAh·g(−1) at 0.2C after 550 cycles, and 551 mAh·g(−1) even at 2C, much better than that of MoS(2)-S nanosheets (249 mAh·g(−1) and 149 mAh·g(−1)) and C-MoS(2)/rGO-S composites (334 mAh·g(−1) and 382 mAh·g(−1)). Our intended electrode design protocol and annealing process may pave the way for the construction of other high-performance metal disulfide electrodes for electrochemical energy storage. Beilstein-Institut 2019-11-14 /pmc/articles/PMC6880788/ /pubmed/31807410 http://dx.doi.org/10.3762/bjnano.10.217 Text en Copyright © 2019, Tian et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the authors and source are credited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Tian, Chengxiang Wu, Juwei Ma, Zheng Li, Bo Li, Pengcheng Zu, Xiaotao Xiang, Xia Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance |
title | Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance |
title_full | Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance |
title_fullStr | Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance |
title_full_unstemmed | Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance |
title_short | Design and facile synthesis of defect-rich C-MoS(2)/rGO nanosheets for enhanced lithium–sulfur battery performance |
title_sort | design and facile synthesis of defect-rich c-mos(2)/rgo nanosheets for enhanced lithium–sulfur battery performance |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6880788/ https://www.ncbi.nlm.nih.gov/pubmed/31807410 http://dx.doi.org/10.3762/bjnano.10.217 |
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