Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteries
The high-performance reduced graphene oxide/sulfur (rGO/S) composite cathode was obtained by integrating sulfur nanoparticles with graphene oxide (GO) in liquid phase reduction by self-assembly process. The morphology and microstructure of the materials were characterized by scanning electron micros...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2021-02-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000379 |
| _version_ | 1797969004216713216 |
|---|---|
| author | WU Xu TANG Xiao-ning HUANG Xin-wei LIU Mei-li ZHOU Wen-hua OUYANG Quan-sheng |
| author_facet | WU Xu TANG Xiao-ning HUANG Xin-wei LIU Mei-li ZHOU Wen-hua OUYANG Quan-sheng |
| author_sort | WU Xu |
| collection | DOAJ |
| description | The high-performance reduced graphene oxide/sulfur (rGO/S) composite cathode was obtained by integrating sulfur nanoparticles with graphene oxide (GO) in liquid phase reduction by self-assembly process. The morphology and microstructure of the materials were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM),X-ray diffractometer (XRD),Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The results show that sulfur nanoparticles are uniformly distributed among the graphene sheets and effectively encapsulated by the graphene sheets. The mass fraction of sulfur in 35-rGO/S composite is as high as 83.6%. The initial discharge capacity of the 35-rGO/S composite cathode can reach 1197.3 mAh·g<sup>-1</sup> at a current density of 0.2 C, and the capacity remains 730 mAh·g<sup>-1</sup> after 200 cycles, manifesting outstanding cycling stability. |
| first_indexed | 2024-04-11T02:55:18Z |
| format | Article |
| id | doaj.art-6ebc29043d1c4685b0599b19537c5eeb |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:55:18Z |
| publishDate | 2021-02-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-6ebc29043d1c4685b0599b19537c5eeb2023-01-02T15:27:30ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812021-02-0149211412010.11868/j.issn.1001-4381.2020.00037920210213Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteriesWU Xu0TANG Xiao-ning1HUANG Xin-wei2LIU Mei-li3ZHOU Wen-hua4OUYANG Quan-sheng5College of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaCollege of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaCollege of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaCollege of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaCollege of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaAdvanced Batteries and Materials Engineering Research Center, Guizhou Light Industry Technical College, Guiyang 550025, ChinaThe high-performance reduced graphene oxide/sulfur (rGO/S) composite cathode was obtained by integrating sulfur nanoparticles with graphene oxide (GO) in liquid phase reduction by self-assembly process. The morphology and microstructure of the materials were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM),X-ray diffractometer (XRD),Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The results show that sulfur nanoparticles are uniformly distributed among the graphene sheets and effectively encapsulated by the graphene sheets. The mass fraction of sulfur in 35-rGO/S composite is as high as 83.6%. The initial discharge capacity of the 35-rGO/S composite cathode can reach 1197.3 mAh·g<sup>-1</sup> at a current density of 0.2 C, and the capacity remains 730 mAh·g<sup>-1</sup> after 200 cycles, manifesting outstanding cycling stability.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000379lithium-sulfur batterygrapheneself-assemblysulfur nanoparticle |
| spellingShingle | WU Xu TANG Xiao-ning HUANG Xin-wei LIU Mei-li ZHOU Wen-hua OUYANG Quan-sheng Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteries Cailiao gongcheng lithium-sulfur battery graphene self-assembly sulfur nanoparticle |
| title | Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteries |
| title_full | Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteries |
| title_fullStr | Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteries |
| title_full_unstemmed | Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteries |
| title_short | Preparation of graphene/sulfur composite in liquid phase and its application as cathode in lithium-sulfur batteries |
| title_sort | preparation of graphene sulfur composite in liquid phase and its application as cathode in lithium sulfur batteries |
| topic | lithium-sulfur battery graphene self-assembly sulfur nanoparticle |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000379 |
| work_keys_str_mv | AT wuxu preparationofgraphenesulfurcompositeinliquidphaseanditsapplicationascathodeinlithiumsulfurbatteries AT tangxiaoning preparationofgraphenesulfurcompositeinliquidphaseanditsapplicationascathodeinlithiumsulfurbatteries AT huangxinwei preparationofgraphenesulfurcompositeinliquidphaseanditsapplicationascathodeinlithiumsulfurbatteries AT liumeili preparationofgraphenesulfurcompositeinliquidphaseanditsapplicationascathodeinlithiumsulfurbatteries AT zhouwenhua preparationofgraphenesulfurcompositeinliquidphaseanditsapplicationascathodeinlithiumsulfurbatteries AT ouyangquansheng preparationofgraphenesulfurcompositeinliquidphaseanditsapplicationascathodeinlithiumsulfurbatteries |