Substitution-triggered broken symmetry of cobalt tungstate boosts redox kinetics in pseudocapacitive storage
文献类型：期刊论文
| 作者 | Huang, CX; Wang, D ; Zhang, W; Yoo, SJ; Zhou, XY; Song, KX; Chen, ZJ; Zou, X; Yue, NL; Wang, ZZ
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| 刊名 | CELL REPORTS PHYSICAL SCIENCE
 |
| 出版日期 | 2022 |
| 卷号 | 3期号:11页码:101115 |
| DOI | 10.1016/j.xcrp.2022.101115 |
| 文献子类 | Article |
| 英文摘要 | Achieving delicate broken symmetry enables significant modifica-tion of crystals, from which a variety of property or performance modulation can be expected. Here, we report that the electrochem-ical performance of wolframite-type CoWO4 is significantly boosted using a Mo-substituted-W strategy. Experimental and theoretical analyses reveal that molybdenum substitution achieves WO6 coo-rdination broken symmetry effectively, and it renders electroactive cobalt centers more polar, thus promoting the charge diffusion ki-netics. Additionally, the enhancement of OH- adsorption energy can also alter the pseudocapacitive charge storage property, which significantly reinforces ion diffusion kinetics. As a result, the opti-mized molybdenum substitution (20 mol%) in CoWO4 exhibits a spe-cific capacitance of 840 F g-1 at 1 A g-1, as well as a maximal energy density of 33.68 Wh kg -1 at power density of 800 W kg -1. Inspired by manipulating symmetry of crystals, our findings may provide in-sights into the origin of the substitution-promoted enhanced reac-tion kinetics. |
| 电子版国际标准刊号 | 2666-3864 |
| 语种 | 英语 |
| WOS记录号 | WOS:000892723000006 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299302]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_加速器中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Huang, CX,Wang, D,Zhang, W,et al. Substitution-triggered broken symmetry of cobalt tungstate boosts redox kinetics in pseudocapacitive storage[J]. CELL REPORTS PHYSICAL SCIENCE,2022,3(11):101115. |
| APA | Huang, CX.,Wang, D.,Zhang, W.,Yoo, SJ.,Zhou, XY.,...&Zheng, WT.(2022).Substitution-triggered broken symmetry of cobalt tungstate boosts redox kinetics in pseudocapacitive storage.CELL REPORTS PHYSICAL SCIENCE,3(11),101115. |
| MLA | Huang, CX,et al."Substitution-triggered broken symmetry of cobalt tungstate boosts redox kinetics in pseudocapacitive storage".CELL REPORTS PHYSICAL SCIENCE 3.11(2022):101115. |
入库方式： OAI收割
来源：高能物理研究所
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