Simultaneous Regulation of Solvation Shell and Oriented Deposition toward a Highly Reversible Fe Anode for All-Iron Flow Batteries
文献类型：期刊论文
| 作者 | Song, Yuxi1,2; Yan, Hui1,2; Hao, Huanhuan1,2; Liu, Zihe1,2; Yan, Chuanwei1; Tang, Ao1 |
| 刊名 | SMALL
 |
| 出版日期 | 2022-10-30 |
| 页码 | 10 |
| ISSN号 | 1613-6810 |
| 关键词 | Fe anodes flow batteries oriented deposition polar solvents solvation shells |
| DOI | 10.1002/smll.202204356 |
| 通讯作者 | Tang, Ao(a.tang@imr.ac.cn) |
| 英文摘要 | Developing low-cost all-iron hybrid redox flow batteries (RFBs) presents a practical alternative to the high-cost all-vanadium RFBs and is deemed vital for grid-scale energy storage applications. However, the intrinsically poor Fe anode reversibility associated with the deposition and dissolution of metallic iron greatly limits the cycling performance and long-term stability of all-iron hybrid RFBs. Herein, a highly reversible and dendrite-free Fe anode is reported for all-iron RFBs through regulation of polar solvent dimethyl sulfoxide (DMSO) on FeCl2 anolyte, which simultaneously reshapes Fe2+ solvation structure and induces controllable oriented Fe deposition. Combining both experimental and theoretical analyses, the polar DMSO additives prove effective in replacing H2O molecule from the primary solvation shell of Fe2+ cation via the Fe2+-O (DMSO) bond and meanwhile induces a fine-grained Fe nucleation on the preferred Fe (110) plane, which are responsible for the minimized hydrogen evolution and dendrite-free Fe deposition that significantly enhance Fe anode reversibility. The all-iron RFB based on the proposed FeCl2-DMSO anolyte demonstrates an excellent combination of peak power density of 134 mW cm(-2), high energy efficiency of 75% at 30 mA cm(-2), and high capacity retention of 98.6% over 200 cycles, which presents the best performance of all-iron RFBs among previously reported research. |
| 资助项目 | Natural Science Foundation of Liaoning Province[2020-MS-012] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000876134100001 |
| 资助机构 | Natural Science Foundation of Liaoning Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176422]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tang, Ao |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Yuxi,Yan, Hui,Hao, Huanhuan,et al. Simultaneous Regulation of Solvation Shell and Oriented Deposition toward a Highly Reversible Fe Anode for All-Iron Flow Batteries[J]. SMALL,2022:10. |
| APA | Song, Yuxi,Yan, Hui,Hao, Huanhuan,Liu, Zihe,Yan, Chuanwei,&Tang, Ao.(2022).Simultaneous Regulation of Solvation Shell and Oriented Deposition toward a Highly Reversible Fe Anode for All-Iron Flow Batteries.SMALL,10. |
| MLA | Song, Yuxi,et al."Simultaneous Regulation of Solvation Shell and Oriented Deposition toward a Highly Reversible Fe Anode for All-Iron Flow Batteries".SMALL (2022):10. |
入库方式： OAI收割
来源：金属研究所
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