Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering
Fe-based sulfides are a promising type of anode material for sodium-ion batteries (SIBs) due to their high theoretical capacities and affordability. However, these materials often suffer from issues such as capacity deterioration and poor conductivity during practical application. To address these c...
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| Format: | Article |
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MDPI AG
2023-04-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/9/3757 |
| _version_ | 1797602118617530368 |
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| author | Jinke Shen Naiteng Wu Wei Xie Qing Li Donglei Guo Jin Li Guilong Liu Xianming Liu Hongyu Mi |
| author_facet | Jinke Shen Naiteng Wu Wei Xie Qing Li Donglei Guo Jin Li Guilong Liu Xianming Liu Hongyu Mi |
| author_sort | Jinke Shen |
| collection | DOAJ |
| description | Fe-based sulfides are a promising type of anode material for sodium-ion batteries (SIBs) due to their high theoretical capacities and affordability. However, these materials often suffer from issues such as capacity deterioration and poor conductivity during practical application. To address these challenges, an N-doped Fe<sub>7</sub>S<sub>8</sub> anode with an N, S co-doped porous carbon framework (PPF-800) was synthesized using a template-assisted method. When serving as an anode for SIBs, it delivers a robust and ultrafast sodium storage performance, with a discharge capacity of 489 mAh g<sup>−1</sup> after 500 cycles at 5 A g<sup>−1</sup> and 371 mAh g<sup>−1</sup> after 1000 cycles at 30 A g<sup>−1</sup> in the ether-based electrolyte. This impressive performance is attributed to the combined influence of heteroatomic doping and adjustable interface engineering. The N, S co-doped carbon framework embedded with Fe<sub>7</sub>S<sub>8</sub> nanoparticles effectively addresses the issues of volumetric expansion, reduces the impact of sodium polysulfides, improves intrinsic conductivity, and stimulates the dominant pseudocapacitive contribution (90.3% at 2 mV s<sup>−1</sup>). Moreover, the formation of a stable solid electrolyte interface (SEI) film by the effect of uniform pore structure in ether-based electrolyte produces a lower transfer resistance during the charge–discharge process, thereby boosting the rate performance of the electrode material. This work expands a facile strategy to optimize the electrochemical performance of other metal sulfides. |
| first_indexed | 2024-03-11T04:12:25Z |
| format | Article |
| id | doaj.art-ae1edba9094c40faa2e470363fdc0a75 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T04:12:25Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-ae1edba9094c40faa2e470363fdc0a752023-11-17T23:23:03ZengMDPI AGMolecules1420-30492023-04-01289375710.3390/molecules28093757Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface EngineeringJinke Shen0Naiteng Wu1Wei Xie2Qing Li3Donglei Guo4Jin Li5Guilong Liu6Xianming Liu7Hongyu Mi8State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, ChinaKey Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaKey Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaKey Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaKey Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaKey Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaKey Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaKey Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, ChinaFe-based sulfides are a promising type of anode material for sodium-ion batteries (SIBs) due to their high theoretical capacities and affordability. However, these materials often suffer from issues such as capacity deterioration and poor conductivity during practical application. To address these challenges, an N-doped Fe<sub>7</sub>S<sub>8</sub> anode with an N, S co-doped porous carbon framework (PPF-800) was synthesized using a template-assisted method. When serving as an anode for SIBs, it delivers a robust and ultrafast sodium storage performance, with a discharge capacity of 489 mAh g<sup>−1</sup> after 500 cycles at 5 A g<sup>−1</sup> and 371 mAh g<sup>−1</sup> after 1000 cycles at 30 A g<sup>−1</sup> in the ether-based electrolyte. This impressive performance is attributed to the combined influence of heteroatomic doping and adjustable interface engineering. The N, S co-doped carbon framework embedded with Fe<sub>7</sub>S<sub>8</sub> nanoparticles effectively addresses the issues of volumetric expansion, reduces the impact of sodium polysulfides, improves intrinsic conductivity, and stimulates the dominant pseudocapacitive contribution (90.3% at 2 mV s<sup>−1</sup>). Moreover, the formation of a stable solid electrolyte interface (SEI) film by the effect of uniform pore structure in ether-based electrolyte produces a lower transfer resistance during the charge–discharge process, thereby boosting the rate performance of the electrode material. This work expands a facile strategy to optimize the electrochemical performance of other metal sulfides.https://www.mdpi.com/1420-3049/28/9/3757N-doped Fe<sub>7</sub>S<sub>8</sub>NS co-doped carbon frameworkultrafast transportether-based electrolytesodium-ion batteries |
| spellingShingle | Jinke Shen Naiteng Wu Wei Xie Qing Li Donglei Guo Jin Li Guilong Liu Xianming Liu Hongyu Mi Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering Molecules N-doped Fe<sub>7</sub>S<sub>8</sub> N S co-doped carbon framework ultrafast transport ether-based electrolyte sodium-ion batteries |
| title | Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering |
| title_full | Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering |
| title_fullStr | Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering |
| title_full_unstemmed | Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering |
| title_short | Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering |
| title_sort | realizing ultrafast and robust sodium ion storage of iron sulfide enabled by heteroatomic doping and regulable interface engineering |
| topic | N-doped Fe<sub>7</sub>S<sub>8</sub> N S co-doped carbon framework ultrafast transport ether-based electrolyte sodium-ion batteries |
| url | https://www.mdpi.com/1420-3049/28/9/3757 |
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