MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage
Transition metal oxides hold promise as electrode materials for energy-storage devices such as batteries and supercapacitors. However, achieving ideal electrode materials with high capacity, long-term cycling stability, and superb rate capability remains a challenge. In this study, we present a self...
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | ChemPhysMater |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772571524000202 |
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| author | Baosong Li Dezhuang Ji Abdallah Kamal Hamouda Shaohong Luo |
| author_facet | Baosong Li Dezhuang Ji Abdallah Kamal Hamouda Shaohong Luo |
| author_sort | Baosong Li |
| collection | DOAJ |
| description | Transition metal oxides hold promise as electrode materials for energy-storage devices such as batteries and supercapacitors. However, achieving ideal electrode materials with high capacity, long-term cycling stability, and superb rate capability remains a challenge. In this study, we present a self-assembled heterogeneous structure consisting of TiO2 nanosheets derived from Ti3C2Tx MXene and reduced graphene oxide. This structure facilitates the formation of heterogeneous structures while establishing a conductive network. The restacking of porous TiO2 nanosheets and reduced graphene oxide within the heterostructure results in high porosity and excellent conductivity. Due to enhanced electron and Na+ transfer, as well as improved structural stability during the Na+ insertion/extraction process, this heterogeneous structure exhibited exceptional Na+ storage performance. Specifically, it exhibits a long-term cycling stability (217 mAh g−1 at 10 C, 5000 cycles) and an ultrahigh rate capability (135 mAh g–1, 40 C). Analysis of electrode reaction kinetics suggests that Na+ storage in the heterostructure is predominantly governed by a surface-controlled process. Our results provide a promising strategy for utilizing self-assembled heterostructures in advanced energy storage applications. |
| format | Article |
| id | doaj-art-c6d3b932c2df41ddbe374bfa7a6f78b0 |
| institution | Kabale University |
| issn | 2772-5715 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | ChemPhysMater |
| spelling | doaj-art-c6d3b932c2df41ddbe374bfa7a6f78b02025-01-22T05:44:24ZengKeAi Communications Co., Ltd.ChemPhysMater2772-57152025-01-01414855MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storageBaosong Li0Dezhuang Ji1Abdallah Kamal Hamouda2Shaohong Luo3Department of Aerospace Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, UAE; Corresponding author.Department of Mechanical and Nuclear Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, UAEDepartment of Mechanical and Nuclear Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, UAEDepartment of Biomedical Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, UAETransition metal oxides hold promise as electrode materials for energy-storage devices such as batteries and supercapacitors. However, achieving ideal electrode materials with high capacity, long-term cycling stability, and superb rate capability remains a challenge. In this study, we present a self-assembled heterogeneous structure consisting of TiO2 nanosheets derived from Ti3C2Tx MXene and reduced graphene oxide. This structure facilitates the formation of heterogeneous structures while establishing a conductive network. The restacking of porous TiO2 nanosheets and reduced graphene oxide within the heterostructure results in high porosity and excellent conductivity. Due to enhanced electron and Na+ transfer, as well as improved structural stability during the Na+ insertion/extraction process, this heterogeneous structure exhibited exceptional Na+ storage performance. Specifically, it exhibits a long-term cycling stability (217 mAh g−1 at 10 C, 5000 cycles) and an ultrahigh rate capability (135 mAh g–1, 40 C). Analysis of electrode reaction kinetics suggests that Na+ storage in the heterostructure is predominantly governed by a surface-controlled process. Our results provide a promising strategy for utilizing self-assembled heterostructures in advanced energy storage applications.http://www.sciencedirect.com/science/article/pii/S2772571524000202Ti3C2Tx MXeneTitanium dioxideSelf-assemblyHeterostructureSodium-ion batteries |
| spellingShingle | Baosong Li Dezhuang Ji Abdallah Kamal Hamouda Shaohong Luo MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage ChemPhysMater Ti3C2Tx MXene Titanium dioxide Self-assembly Heterostructure Sodium-ion batteries |
| title | MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage |
| title_full | MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage |
| title_fullStr | MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage |
| title_full_unstemmed | MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage |
| title_short | MXene-derived TiO2 nanosheets/rGO heterostructures for superior sodium-ion storage |
| title_sort | mxene derived tio2 nanosheets rgo heterostructures for superior sodium ion storage |
| topic | Ti3C2Tx MXene Titanium dioxide Self-assembly Heterostructure Sodium-ion batteries |
| url | http://www.sciencedirect.com/science/article/pii/S2772571524000202 |
| work_keys_str_mv | AT baosongli mxenederivedtio2nanosheetsrgoheterostructuresforsuperiorsodiumionstorage AT dezhuangji mxenederivedtio2nanosheetsrgoheterostructuresforsuperiorsodiumionstorage AT abdallahkamalhamouda mxenederivedtio2nanosheetsrgoheterostructuresforsuperiorsodiumionstorage AT shaohongluo mxenederivedtio2nanosheetsrgoheterostructuresforsuperiorsodiumionstorage |