Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage
文献类型：期刊论文
| 作者 | Yang, Hailun1,2; Ning, Pengge1,2; Zhu, Zewen3; Yuan, Ling1,2; Jia, Wenting1,2; Wen, Jiawei1,2; Xu, Gaojie1,2; Li, Yuping1,2; Cao, Hongbin1,2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2021-11-09 |
| 卷号 | 9期号:43页码:24517-24527 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/d1ta07599c |
| 英文摘要 | A major limitation of vanadium oxides in aqueous Zn/V2O5 ion battery applications is that they suffer from strong coulombic ion-lattice interactions with divalent Zn2+. Correspondingly, vanadium oxides show the poor utilization of their electrochemically active surface areas and unsatisfactory structural stability. The Gibbs free energy of Zn2+ adsorption in the vicinity of oxygen vacancies can be reduced to a thermoneutral value, which suggests that the Zn2+ adsorption/desorption process on the oxygen-deficient oxide lattice is more reversible as compared to a less defective vanadium oxide. In this work, it is demonstrated that these problems can be significantly ameliorated via creating oxygen vacancies in vanadium oxide host materials. Specifically, for the first time, vanadium oxides with abundant oxygen defects (labeled V-o-V2O5) are fabricated via a new water-steam activation strategy. Such water-steam activation forms abundant oxygen defects, and the as-prepared materials show a 3.5-fold increase in the carrier density, together with larger electrochemically active surface areas compared to a less defective vanadium oxide. When used as a cathode material for aqueous zinc ion batteries, V-o-V2O5 exhibits a high specific capacity (335 mA h g(-1) at 0.2 A g(-1)) and excellent cell stability (similar to 87.2% capacity retention after 3500 continuous charge/discharge cycles at 5.0 A g(-1)). Thus, this water-steam activation approach for disordered metal oxides yields highly competitive cathode materials, which may also aid in the future development of advanced materials in related energy fields. |
| WOS关键词 | BATTERY ; CATHODE ; V2O5 ; SPECTROSCOPY ; ABSORPTION ; INSERTION ; VANADATE |
| 资助项目 | National Natural Science Foundation of China[22008248] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000711951800001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50737]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Ning, Pengge; Cao, Hongbin |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn,Natl Key Lab Biochem Engn,CAS Key, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Univ Geosci, Sch Mat Sci & Technol, Beijing 10083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Hailun,Ning, Pengge,Zhu, Zewen,et al. Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(43):24517-24527. |
| APA | Yang, Hailun.,Ning, Pengge.,Zhu, Zewen.,Yuan, Ling.,Jia, Wenting.,...&Cao, Hongbin.(2021).Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage.JOURNAL OF MATERIALS CHEMISTRY A,9(43),24517-24527. |
| MLA | Yang, Hailun,et al."Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage".JOURNAL OF MATERIALS CHEMISTRY A 9.43(2021):24517-24527. |
入库方式： OAI收割
来源：过程工程研究所
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