Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage Properties
Abstract Sodium‐ion batteries (SIBs) have been considered as promising replacements to lithium‐ion batteries (LIBs) for large‐scale energy storage applications. For anode materials, titanium dioxide (TiO2) as a typical insertion‐type anode material have been extensively investigated as a safety, sta...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-01-01
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| Series: | ChemElectroChem |
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| Online Access: | https://doi.org/10.1002/celc.202201009 |
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| author | Weifang Liu Baixue Ouyang Xichang Liu Mengjie Zhang Mengwei Pan Puliang Li Huacheng Li Prof. Kaiyu Liu |
| author_facet | Weifang Liu Baixue Ouyang Xichang Liu Mengjie Zhang Mengwei Pan Puliang Li Huacheng Li Prof. Kaiyu Liu |
| author_sort | Weifang Liu |
| collection | DOAJ |
| description | Abstract Sodium‐ion batteries (SIBs) have been considered as promising replacements to lithium‐ion batteries (LIBs) for large‐scale energy storage applications. For anode materials, titanium dioxide (TiO2) as a typical insertion‐type anode material have been extensively investigated as a safety, stable, cheap and environmental‐friendly anode materials for SIBs. Constructing suitable TiO2 crystal structure is a common modification strategy for improving the diffusion kinetics of sodium ion within TiO2 and its intrinsic electronic conductivity. Herein, a multi‐atomic doped oxygen‐deficient TiO2/C composites (N, S‐NTC) was successfully synthesized with excellent electrochemical performance. Synergistic effect of N, S and Ni elements on the structure, morphology and electrochemical performance was investigated. Electron Paramagnetic Resonance (EPR) spectroscopy, Raman spectroscopy and X‐ray photoelectron spectroscopy (XPS) analysis indicated that the Ni, N, S doping can introduce oxygen deficiency, narrow the bandgap of TiO2 and facilitating Na+ diffusion, further providing higher electronic/ionic conductivities and faster electron transport channel. As a consequence, the anode materials delivered ultrahigh rate performance and cycling performance of a high reversible capacity of 128.6 mA h g−1 at 1 A g−1 after 3000th cycles. |
| first_indexed | 2024-03-13T06:21:56Z |
| format | Article |
| id | doaj.art-abf55b491b3e4fee9a6280c329ac2726 |
| institution | Directory Open Access Journal |
| issn | 2196-0216 |
| language | English |
| last_indexed | 2024-03-13T06:21:56Z |
| publishDate | 2023-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj.art-abf55b491b3e4fee9a6280c329ac27262023-06-09T18:21:54ZengWiley-VCHChemElectroChem2196-02162023-01-01102n/an/a10.1002/celc.202201009Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage PropertiesWeifang Liu0Baixue Ouyang1Xichang Liu2Mengjie Zhang3Mengwei Pan4Puliang Li5Huacheng Li6Prof. Kaiyu Liu7College of Chemistry and Chemical Engineering Central South University Changsha 410083 ChinaCollege of Chemistry and Chemical Engineering Central South University Changsha 410083 ChinaCollege of Chemistry and Chemical Engineering Central South University Changsha 410083 ChinaCollege of Chemistry and Chemical Engineering Central South University Changsha 410083 ChinaCollege of Chemistry and Chemical Engineering Central South University Changsha 410083 ChinaHunan Central Manganese-Sodium-Iron New Material limited company Changsha 410083 ChinaHunan Central Manganese-Sodium-Iron New Material limited company Changsha 410083 ChinaCollege of Chemistry and Chemical Engineering Central South University Changsha 410083 ChinaAbstract Sodium‐ion batteries (SIBs) have been considered as promising replacements to lithium‐ion batteries (LIBs) for large‐scale energy storage applications. For anode materials, titanium dioxide (TiO2) as a typical insertion‐type anode material have been extensively investigated as a safety, stable, cheap and environmental‐friendly anode materials for SIBs. Constructing suitable TiO2 crystal structure is a common modification strategy for improving the diffusion kinetics of sodium ion within TiO2 and its intrinsic electronic conductivity. Herein, a multi‐atomic doped oxygen‐deficient TiO2/C composites (N, S‐NTC) was successfully synthesized with excellent electrochemical performance. Synergistic effect of N, S and Ni elements on the structure, morphology and electrochemical performance was investigated. Electron Paramagnetic Resonance (EPR) spectroscopy, Raman spectroscopy and X‐ray photoelectron spectroscopy (XPS) analysis indicated that the Ni, N, S doping can introduce oxygen deficiency, narrow the bandgap of TiO2 and facilitating Na+ diffusion, further providing higher electronic/ionic conductivities and faster electron transport channel. As a consequence, the anode materials delivered ultrahigh rate performance and cycling performance of a high reversible capacity of 128.6 mA h g−1 at 1 A g−1 after 3000th cycles.https://doi.org/10.1002/celc.202201009sodium ion batterytitanium dioxideoxygen vacanciesrate performancesulfur dopednitrogen doped |
| spellingShingle | Weifang Liu Baixue Ouyang Xichang Liu Mengjie Zhang Mengwei Pan Puliang Li Huacheng Li Prof. Kaiyu Liu Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage Properties ChemElectroChem sodium ion battery titanium dioxide oxygen vacancies rate performance sulfur doped nitrogen doped |
| title | Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage Properties |
| title_full | Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage Properties |
| title_fullStr | Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage Properties |
| title_full_unstemmed | Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage Properties |
| title_short | Nitrogen and Sulfur Dual‐Doped Oxygen‐Deficient TiO2/C Composites for Superior Sodium Storage Properties |
| title_sort | nitrogen and sulfur dual doped oxygen deficient tio2 c composites for superior sodium storage properties |
| topic | sodium ion battery titanium dioxide oxygen vacancies rate performance sulfur doped nitrogen doped |
| url | https://doi.org/10.1002/celc.202201009 |
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