Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries
Pyrite-type FeS2 is regarded as a promising anode material for sodium ion batteries. The synthesis of FeS2 in large quantities accompanied by an improved cycling stability, as well as retaining high theoretical capacity, is highly desirable for its commercialization. Herein, we present a scalable an...
| Main Authors: | , , , , , , , , , |
|---|---|
| 其他作者: | |
| 格式: | Journal Article |
| 语言: | English |
| 出版: |
2021
|
| 主题: | |
| 在线阅读: | https://hdl.handle.net/10356/151344 |
| _version_ | 1826110463964872704 |
|---|---|
| author | Hu, Rudan Zhao, Hongan Zhang, Jianli Liang, Qinghua Wang, Yining Guo, Bailing Dangol, Raksha Zheng, Yun Yan, Qingyu Zhu, Junwu |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Hu, Rudan Zhao, Hongan Zhang, Jianli Liang, Qinghua Wang, Yining Guo, Bailing Dangol, Raksha Zheng, Yun Yan, Qingyu Zhu, Junwu |
| author_sort | Hu, Rudan |
| collection | NTU |
| description | Pyrite-type FeS2 is regarded as a promising anode material for sodium ion batteries. The synthesis of FeS2 in large quantities accompanied by an improved cycling stability, as well as retaining high theoretical capacity, is highly desirable for its commercialization. Herein, we present a scalable and simple strategy to prepare a foam-like FeS2 (F-FeS2) nanostructure by combining solution combustion synthesis and solid-state sulfurization. The obtained F-FeS2 product is highly uniform and built from interconnected FeS2 nanoparticles (∼50 nm). The interconnected feature, small particle sizes and porous structure endow the product with high electrical conductivity, good ion diffusion kinetics, and high inhibition capacity of volume expansion. As a result, high capacity (823 mA h g−1 at 0.1 A g−1, very close to the theoretical capacity of FeS2, 894 mA h g−1), good rate capability (581 mA h g−1 at 5.0 A g−1) and cyclability (754 mA h g−1 at 0.2 A g−1 with 97% retention after 80 cycles) can be achieved. The sodium storage mechanism has been proved to be a combination of intercalation and conversion reactions based on in situ XRD. Furthermore, high pseudocapacitive contribution (i.e. ∼87.5% at 5.0 mV s−1) accounts for the outstanding electrochemical performance of F-FeS2 at high rates. |
| first_indexed | 2024-10-01T02:34:50Z |
| format | Journal Article |
| id | ntu-10356/151344 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:34:50Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1513442021-06-22T09:00:57Z Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries Hu, Rudan Zhao, Hongan Zhang, Jianli Liang, Qinghua Wang, Yining Guo, Bailing Dangol, Raksha Zheng, Yun Yan, Qingyu Zhu, Junwu School of Materials Science and Engineering Engineering::Materials Anodes Combustion Synthesis Pyrite-type FeS2 is regarded as a promising anode material for sodium ion batteries. The synthesis of FeS2 in large quantities accompanied by an improved cycling stability, as well as retaining high theoretical capacity, is highly desirable for its commercialization. Herein, we present a scalable and simple strategy to prepare a foam-like FeS2 (F-FeS2) nanostructure by combining solution combustion synthesis and solid-state sulfurization. The obtained F-FeS2 product is highly uniform and built from interconnected FeS2 nanoparticles (∼50 nm). The interconnected feature, small particle sizes and porous structure endow the product with high electrical conductivity, good ion diffusion kinetics, and high inhibition capacity of volume expansion. As a result, high capacity (823 mA h g−1 at 0.1 A g−1, very close to the theoretical capacity of FeS2, 894 mA h g−1), good rate capability (581 mA h g−1 at 5.0 A g−1) and cyclability (754 mA h g−1 at 0.2 A g−1 with 97% retention after 80 cycles) can be achieved. The sodium storage mechanism has been proved to be a combination of intercalation and conversion reactions based on in situ XRD. Furthermore, high pseudocapacitive contribution (i.e. ∼87.5% at 5.0 mV s−1) accounts for the outstanding electrochemical performance of F-FeS2 at high rates. 2021-06-22T09:00:57Z 2021-06-22T09:00:57Z 2019 Journal Article Hu, R., Zhao, H., Zhang, J., Liang, Q., Wang, Y., Guo, B., Dangol, R., Zheng, Y., Yan, Q. & Zhu, J. (2019). Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries. Nanoscale, 11(1), 178-184. https://dx.doi.org/10.1039/C8NR06675B 2040-3364 https://hdl.handle.net/10356/151344 10.1039/C8NR06675B 1 11 178 184 en Nanoscale © 2019 The Royal Society of Chemistry. All rights reserved. |
| spellingShingle | Engineering::Materials Anodes Combustion Synthesis Hu, Rudan Zhao, Hongan Zhang, Jianli Liang, Qinghua Wang, Yining Guo, Bailing Dangol, Raksha Zheng, Yun Yan, Qingyu Zhu, Junwu Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries |
| title | Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries |
| title_full | Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries |
| title_fullStr | Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries |
| title_full_unstemmed | Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries |
| title_short | Scalable synthesis of a foam-like FeS2 nanostructure by a solution combustion-sulfurization process for high-capacity sodium-ion batteries |
| title_sort | scalable synthesis of a foam like fes2 nanostructure by a solution combustion sulfurization process for high capacity sodium ion batteries |
| topic | Engineering::Materials Anodes Combustion Synthesis |
| url | https://hdl.handle.net/10356/151344 |
| work_keys_str_mv | AT hurudan scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT zhaohongan scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT zhangjianli scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT liangqinghua scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT wangyining scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT guobailing scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT dangolraksha scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT zhengyun scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT yanqingyu scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries AT zhujunwu scalablesynthesisofafoamlikefes2nanostructurebyasolutioncombustionsulfurizationprocessforhighcapacitysodiumionbatteries |