In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion Storage
The interfacial effect is important for anodes of transition metal dichalcogenides (TMDs) to achieve superior lithium-ion storage performance. In this paper, a MoS<sub>2</sub>/FeS<sub>2</sub> heterojunction is synthesized by a simple hydrothermal reaction to construct the int...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-03-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/29/6/1387 |
| _version_ | 1827305456621584384 |
|---|---|
| author | Dazhi Li Changlong Sun Zeqing Miao Kesheng Gao Zeyang Li Wei Sun Shengjing Guan Xiaofei Qu Zhenjiang Li |
| author_facet | Dazhi Li Changlong Sun Zeqing Miao Kesheng Gao Zeyang Li Wei Sun Shengjing Guan Xiaofei Qu Zhenjiang Li |
| author_sort | Dazhi Li |
| collection | DOAJ |
| description | The interfacial effect is important for anodes of transition metal dichalcogenides (TMDs) to achieve superior lithium-ion storage performance. In this paper, a MoS<sub>2</sub>/FeS<sub>2</sub> heterojunction is synthesized by a simple hydrothermal reaction to construct the interface effect, and the heterostructure introduces an inherent electric field that accelerates the de-embedding process of lithium ions, improves the electron transfer capability, and effectively mitigates volume expansion. XPS analysis confirms evident chemical interaction between MoS<sub>2</sub> and FeS<sub>2</sub> via an interfacial covalent bond (Mo–S–Fe). This MoS<sub>2</sub>/FeS<sub>2</sub> anode shows a distinct interfacial effect for efficient interatomic electron migration. The electrochemical performance demonstrated that the discharge capacity can reach up to 1217.8 mA h g<sup>−1</sup> at 0.1 A g<sup>−1</sup> after 200 cycles, with a capacity retention rate of 72.9%. After 2000 cycles, the capacity retention is about 61.6% at 1.0 A g<sup>−1</sup>, and the discharge capacity can still reach 638.9 mA h g<sup>−1</sup>. Electrochemical kinetic analysis indicated an enhanced pseudocapacitance contribution and that the MoS<sub>2</sub>/FeS<sub>2</sub> had sufficient adsorption of lithium ions. This paper therefore argues that this interfacial engineering is an effective solution for designing sulfide-based anodes with good electrochemical properties. |
| first_indexed | 2024-04-24T17:58:28Z |
| format | Article |
| id | doaj.art-924bc0f20ccf4b0180fbe909c803da85 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-24T17:58:28Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-924bc0f20ccf4b0180fbe909c803da852024-03-27T13:57:14ZengMDPI AGMolecules1420-30492024-03-01296138710.3390/molecules29061387In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion StorageDazhi Li0Changlong Sun1Zeqing Miao2Kesheng Gao3Zeyang Li4Wei Sun5Shengjing Guan6Xiaofei Qu7Zhenjiang Li8College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaCollege of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaCollege of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, ChinaSongshan Lake Materials Laboratory, Dongguan 523808, ChinaCollege of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaCollege of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaSchool of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, ChinaCollege of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaCollege of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaThe interfacial effect is important for anodes of transition metal dichalcogenides (TMDs) to achieve superior lithium-ion storage performance. In this paper, a MoS<sub>2</sub>/FeS<sub>2</sub> heterojunction is synthesized by a simple hydrothermal reaction to construct the interface effect, and the heterostructure introduces an inherent electric field that accelerates the de-embedding process of lithium ions, improves the electron transfer capability, and effectively mitigates volume expansion. XPS analysis confirms evident chemical interaction between MoS<sub>2</sub> and FeS<sub>2</sub> via an interfacial covalent bond (Mo–S–Fe). This MoS<sub>2</sub>/FeS<sub>2</sub> anode shows a distinct interfacial effect for efficient interatomic electron migration. The electrochemical performance demonstrated that the discharge capacity can reach up to 1217.8 mA h g<sup>−1</sup> at 0.1 A g<sup>−1</sup> after 200 cycles, with a capacity retention rate of 72.9%. After 2000 cycles, the capacity retention is about 61.6% at 1.0 A g<sup>−1</sup>, and the discharge capacity can still reach 638.9 mA h g<sup>−1</sup>. Electrochemical kinetic analysis indicated an enhanced pseudocapacitance contribution and that the MoS<sub>2</sub>/FeS<sub>2</sub> had sufficient adsorption of lithium ions. This paper therefore argues that this interfacial engineering is an effective solution for designing sulfide-based anodes with good electrochemical properties.https://www.mdpi.com/1420-3049/29/6/1387MoS<sub>2</sub>/FeS<sub>2</sub>heterojunctioninterfacial effectelectronically modulate |
| spellingShingle | Dazhi Li Changlong Sun Zeqing Miao Kesheng Gao Zeyang Li Wei Sun Shengjing Guan Xiaofei Qu Zhenjiang Li In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion Storage Molecules MoS<sub>2</sub>/FeS<sub>2</sub> heterojunction interfacial effect electronically modulate |
| title | In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion Storage |
| title_full | In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion Storage |
| title_fullStr | In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion Storage |
| title_full_unstemmed | In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion Storage |
| title_short | In Situ Hybridization Strategy Constructs Heterogeneous Interfaces to Form Electronically Modulated MoS<sub>2</sub>/FeS<sub>2</sub> as the Anode for High-Performance Lithium-Ion Storage |
| title_sort | in situ hybridization strategy constructs heterogeneous interfaces to form electronically modulated mos sub 2 sub fes sub 2 sub as the anode for high performance lithium ion storage |
| topic | MoS<sub>2</sub>/FeS<sub>2</sub> heterojunction interfacial effect electronically modulate |
| url | https://www.mdpi.com/1420-3049/29/6/1387 |
| work_keys_str_mv | AT dazhili insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT changlongsun insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT zeqingmiao insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT keshenggao insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT zeyangli insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT weisun insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT shengjingguan insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT xiaofeiqu insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage AT zhenjiangli insituhybridizationstrategyconstructsheterogeneousinterfacestoformelectronicallymodulatedmossub2subfessub2subastheanodeforhighperformancelithiumionstorage |