Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage
Positive electrodes play a decisive role in exploring the Zn2+ storage mechanism and improving the electrochemical performance of aqueous Zn-ion batteries (AZIBs). Feasible design and preparation of cathode materials have been crucial for AZIBs in recent years. Herein, taking the advantage of the tu...
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| Format: | Article |
| Language: | English |
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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/S2772571524000238 |
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| author | Mingying Bao Zhengchunyu Zhang Xuguang An Baojuan Xi Shenglin Xiong |
| author_facet | Mingying Bao Zhengchunyu Zhang Xuguang An Baojuan Xi Shenglin Xiong |
| author_sort | Mingying Bao |
| collection | DOAJ |
| description | Positive electrodes play a decisive role in exploring the Zn2+ storage mechanism and improving the electrochemical performance of aqueous Zn-ion batteries (AZIBs). Feasible design and preparation of cathode materials have been crucial for AZIBs in recent years. Herein, taking the advantage of the tunnel structure of VO2, which can withstand volume change during charging/discharging, VO2 doped with Ce ions is synthesized by a simple one-step hydrothermal method and oxygen vacancies are synchronously generated during synthesis. It delivers a capacity of 158.5 mAh g−1 at the current density of 5 A g−1 after 1000 cycles and exhibits an excellent energy density of 312.8 Wh kg−1 at the power density of 142 W kg−1. The structural modification and prospect of enhancing its conductivity by doping with rare-earth metals and introducing oxygen vacancies may aid in improving the stability of AZIBs in the future. |
| format | Article |
| id | doaj-art-fdacaf6a2fc249dc97c9e4307980705d |
| 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-fdacaf6a2fc249dc97c9e4307980705d2025-01-22T05:44:24ZengKeAi Communications Co., Ltd.ChemPhysMater2772-57152025-01-01415663Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storageMingying Bao0Zhengchunyu Zhang1Xuguang An2Baojuan Xi3Shenglin Xiong4Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, ChinaKey Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, ChinaSchool of Mechanical Engineering, Chengdu University, Chengdu 610106, ChinaKey Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, ChinaKey Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China; Corresponding author.Positive electrodes play a decisive role in exploring the Zn2+ storage mechanism and improving the electrochemical performance of aqueous Zn-ion batteries (AZIBs). Feasible design and preparation of cathode materials have been crucial for AZIBs in recent years. Herein, taking the advantage of the tunnel structure of VO2, which can withstand volume change during charging/discharging, VO2 doped with Ce ions is synthesized by a simple one-step hydrothermal method and oxygen vacancies are synchronously generated during synthesis. It delivers a capacity of 158.5 mAh g−1 at the current density of 5 A g−1 after 1000 cycles and exhibits an excellent energy density of 312.8 Wh kg−1 at the power density of 142 W kg−1. The structural modification and prospect of enhancing its conductivity by doping with rare-earth metals and introducing oxygen vacancies may aid in improving the stability of AZIBs in the future.http://www.sciencedirect.com/science/article/pii/S2772571524000238CathodeCe ionsOxygen vacanciesCe-VO2Aqueous Zn-ion batteries |
| spellingShingle | Mingying Bao Zhengchunyu Zhang Xuguang An Baojuan Xi Shenglin Xiong Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage ChemPhysMater Cathode Ce ions Oxygen vacancies Ce-VO2 Aqueous Zn-ion batteries |
| title | Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage |
| title_full | Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage |
| title_fullStr | Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage |
| title_full_unstemmed | Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage |
| title_short | Introducing Ce ions and oxygen vacancies into VO2 nanostructures with high specific surface area for efficient aqueous Zn-ion storage |
| title_sort | introducing ce ions and oxygen vacancies into vo2 nanostructures with high specific surface area for efficient aqueous zn ion storage |
| topic | Cathode Ce ions Oxygen vacancies Ce-VO2 Aqueous Zn-ion batteries |
| url | http://www.sciencedirect.com/science/article/pii/S2772571524000238 |
| work_keys_str_mv | AT mingyingbao introducingceionsandoxygenvacanciesintovo2nanostructureswithhighspecificsurfaceareaforefficientaqueousznionstorage AT zhengchunyuzhang introducingceionsandoxygenvacanciesintovo2nanostructureswithhighspecificsurfaceareaforefficientaqueousznionstorage AT xuguangan introducingceionsandoxygenvacanciesintovo2nanostructureswithhighspecificsurfaceareaforefficientaqueousznionstorage AT baojuanxi introducingceionsandoxygenvacanciesintovo2nanostructureswithhighspecificsurfaceareaforefficientaqueousznionstorage AT shenglinxiong introducingceionsandoxygenvacanciesintovo2nanostructureswithhighspecificsurfaceareaforefficientaqueousznionstorage |