Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion Batteries
Sodium-ion batteries have potential as energy-storage devices owing to an abundant source with low cost. However, most electrode materials still suffer from poor conductivity, sluggish kinetics, and huge volume variation. It is still challenging to explore apt electrode materials for sodium-ion batt...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/6/660 |
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| author | Ujjwala Chothe Chitra Ugale Milind Kulkarni Bharat Kale |
| author_facet | Ujjwala Chothe Chitra Ugale Milind Kulkarni Bharat Kale |
| author_sort | Ujjwala Chothe |
| collection | DOAJ |
| description | Sodium-ion batteries have potential as energy-storage devices owing to an abundant source with low cost. However, most electrode materials still suffer from poor conductivity, sluggish kinetics, and huge volume variation. It is still challenging to explore apt electrode materials for sodium-ion battery applications to avoid the pulverization of electrodes induced by reversible intercalation of large sodium ions. Herein, we report a single-step facile, scalable, low-cost, and high-yield approach to prepare a hybrid material; i.e., MoS<sub>2</sub> with graphene (MoS<sub>2</sub>-G). Due to the space-confined effect, thin-layered MoS<sub>2</sub> nanosheets with a loose stacking feature are anchored with the graphene sheets. The semienclosed hybrid architecture of the electrode enhances the integrity and stability during the intercalation of Na<sup>+</sup> ions. Particularly, during galvanostatic study the assembled Na-ion cell delivered a specific capacity of 420 mAhg<sup>−1</sup> at 50 mAg<sup>−1</sup>, and 172 mAhg<sup>−1</sup> at current density 200 mAg<sup>−1</sup> after 200 cycles. The MoS<sub>2</sub>-G hybrid excels in performance due to residual oxygen groups in graphene, which improves the electronic conductivity and decreases the Na<sup>+</sup> diffusion barrier during electrochemical reaction, in comparison with a pristine one. |
| first_indexed | 2024-03-10T10:33:30Z |
| format | Article |
| id | doaj.art-bac4da52dd7d458387870824ff73074d |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T10:33:30Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-bac4da52dd7d458387870824ff73074d2023-11-21T23:30:22ZengMDPI AGCrystals2073-43522021-06-0111666010.3390/cryst11060660Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion BatteriesUjjwala Chothe0Chitra Ugale1Milind Kulkarni2Bharat Kale3Centre for Materials for Electronics Technology (C-MET), Ministry of Electronics and Information Technology (MeitY), Panchavati, Pune 411008, IndiaCentre for Materials for Electronics Technology (C-MET), Ministry of Electronics and Information Technology (MeitY), Panchavati, Pune 411008, IndiaCentre for Materials for Electronics Technology (C-MET), Ministry of Electronics and Information Technology (MeitY), Panchavati, Pune 411008, IndiaCentre for Materials for Electronics Technology (C-MET), Ministry of Electronics and Information Technology (MeitY), Panchavati, Pune 411008, IndiaSodium-ion batteries have potential as energy-storage devices owing to an abundant source with low cost. However, most electrode materials still suffer from poor conductivity, sluggish kinetics, and huge volume variation. It is still challenging to explore apt electrode materials for sodium-ion battery applications to avoid the pulverization of electrodes induced by reversible intercalation of large sodium ions. Herein, we report a single-step facile, scalable, low-cost, and high-yield approach to prepare a hybrid material; i.e., MoS<sub>2</sub> with graphene (MoS<sub>2</sub>-G). Due to the space-confined effect, thin-layered MoS<sub>2</sub> nanosheets with a loose stacking feature are anchored with the graphene sheets. The semienclosed hybrid architecture of the electrode enhances the integrity and stability during the intercalation of Na<sup>+</sup> ions. Particularly, during galvanostatic study the assembled Na-ion cell delivered a specific capacity of 420 mAhg<sup>−1</sup> at 50 mAg<sup>−1</sup>, and 172 mAhg<sup>−1</sup> at current density 200 mAg<sup>−1</sup> after 200 cycles. The MoS<sub>2</sub>-G hybrid excels in performance due to residual oxygen groups in graphene, which improves the electronic conductivity and decreases the Na<sup>+</sup> diffusion barrier during electrochemical reaction, in comparison with a pristine one.https://www.mdpi.com/2073-4352/11/6/660SIBsolid-state methodMoS<sub>2</sub>graphene |
| spellingShingle | Ujjwala Chothe Chitra Ugale Milind Kulkarni Bharat Kale Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion Batteries Crystals SIB solid-state method MoS<sub>2</sub> graphene |
| title | Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion Batteries |
| title_full | Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion Batteries |
| title_fullStr | Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion Batteries |
| title_full_unstemmed | Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion Batteries |
| title_short | Solid-State Synthesis of Layered MoS<sub>2</sub> Nanosheets with Graphene for Sodium-Ion Batteries |
| title_sort | solid state synthesis of layered mos sub 2 sub nanosheets with graphene for sodium ion batteries |
| topic | SIB solid-state method MoS<sub>2</sub> graphene |
| url | https://www.mdpi.com/2073-4352/11/6/660 |
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