Cargando…
Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host
Lithium-sulfur (Li-S) batteries exhibit the high specific capacity and energy density, but prevented by the low coulombic efficiency and weak cycle life. Herein, we fabricate reduced graphene oxide (r-GO) three-dimensional (3D) foams encapsulating polar mesoporous zinc sulfide (ZnS) nanosheets and s...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7093555/ https://www.ncbi.nlm.nih.gov/pubmed/32210255 http://dx.doi.org/10.1038/s41598-020-62037-4 |
_version_ | 1783510307595878400 |
---|---|
author | Mao, Limin Wang, Fei Mao, Jian |
author_facet | Mao, Limin Wang, Fei Mao, Jian |
author_sort | Mao, Limin |
collection | PubMed |
description | Lithium-sulfur (Li-S) batteries exhibit the high specific capacity and energy density, but prevented by the low coulombic efficiency and weak cycle life. Herein, we fabricate reduced graphene oxide (r-GO) three-dimensional (3D) foams encapsulating polar mesoporous zinc sulfide (ZnS) nanosheets and subsequently utilize the ZnS/r-GO foams to load sulfur (ZnS/r-GO/S) as cathodes for improving the performance of Li-S batteries. The mesoporous diameter of the ZnS nanosheets is approximately 10~30 nm and lots of pores in the 3D foams are observed. The porous structure provides abundant sites to adsorb and accommodate sulfur species. The cathode of the ZnS/r-GO/S exhibits 1259 mA h g(−1) of initial capacity and 971.9 mA h g(−1) of the reversible capacity after 200 cycles at 0.1 C (1 C = 1675 mA g(−1)). At 1 C, it still exhibits the tiny capacity decay rate of 0.019% per cycle after 300 cycles. This work may be adopted to combine the nonpolar and polar materials as a 3D network structure for high-performance Li-S batteries. |
format | Online Article Text |
id | pubmed-7093555 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-70935552020-03-27 Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host Mao, Limin Wang, Fei Mao, Jian Sci Rep Article Lithium-sulfur (Li-S) batteries exhibit the high specific capacity and energy density, but prevented by the low coulombic efficiency and weak cycle life. Herein, we fabricate reduced graphene oxide (r-GO) three-dimensional (3D) foams encapsulating polar mesoporous zinc sulfide (ZnS) nanosheets and subsequently utilize the ZnS/r-GO foams to load sulfur (ZnS/r-GO/S) as cathodes for improving the performance of Li-S batteries. The mesoporous diameter of the ZnS nanosheets is approximately 10~30 nm and lots of pores in the 3D foams are observed. The porous structure provides abundant sites to adsorb and accommodate sulfur species. The cathode of the ZnS/r-GO/S exhibits 1259 mA h g(−1) of initial capacity and 971.9 mA h g(−1) of the reversible capacity after 200 cycles at 0.1 C (1 C = 1675 mA g(−1)). At 1 C, it still exhibits the tiny capacity decay rate of 0.019% per cycle after 300 cycles. This work may be adopted to combine the nonpolar and polar materials as a 3D network structure for high-performance Li-S batteries. Nature Publishing Group UK 2020-03-24 /pmc/articles/PMC7093555/ /pubmed/32210255 http://dx.doi.org/10.1038/s41598-020-62037-4 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Mao, Limin Wang, Fei Mao, Jian Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host |
title | Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host |
title_full | Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host |
title_fullStr | Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host |
title_full_unstemmed | Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host |
title_short | Polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host |
title_sort | polar mesoporous zinc sulfide nanosheets encapsulated in reduced graphene oxide three-dimensional foams for sulfur host |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7093555/ https://www.ncbi.nlm.nih.gov/pubmed/32210255 http://dx.doi.org/10.1038/s41598-020-62037-4 |
work_keys_str_mv | AT maolimin polarmesoporouszincsulfidenanosheetsencapsulatedinreducedgrapheneoxidethreedimensionalfoamsforsulfurhost AT wangfei polarmesoporouszincsulfidenanosheetsencapsulatedinreducedgrapheneoxidethreedimensionalfoamsforsulfurhost AT maojian polarmesoporouszincsulfidenanosheetsencapsulatedinreducedgrapheneoxidethreedimensionalfoamsforsulfurhost |