The Charge Storage Mechanisms of 2D Cation-Intercalated Manganese Oxide in Different Electrolytes | |
Department | 清洁能源化学与材料实验室 |
Zhang QN(张庆暖)1; Mikhael D. Levi2; Dou QY(窦青云)1,3; Lu YL(鲁玉兰)4; Chai YG(柴胤光)5; Lei SL(类淑来)1; Ji HX(季恒星)5; Liu B(刘宝)1,3; Bu XD(卜旭东)6; Ma PJ(马鹏军)1; Yan XB(阎兴斌)1,7 | |
2018-11-29 | |
Source Publication | Advanced Energy Materials |
Volume | 8Issue:34Pages:1-10 |
Abstract | 2D ion-intercalated metal oxides are emerging promising new electrodes for supercapacitors because of their unique layered structure as well as distinctive electronic properties. To facilitate their application, fundamental study of the charge storage mechanism is required. Herein, it is demonstrated that the application of in situ Raman spectroscopy and electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D), provides a sufficient basis to elucidate the charge storage mechanism in a typical 2D cation-intercalated manganese oxide (Na0.55Mn2O4·1.5H2O, abbreviated as NMO) in neutral and alkaline aqueous electrolytes. The results reveal that in neutral Na2SO4 electrolytes, NMO mainly displays a surface-controlled pseudocapacitive behavior in the low potential region (0–0.8 V), but when the potential is higher than 0.8 V, an intercalation pseudocapacitive behavior becomes dominant. By contrast, NMO shows a battery-like behavior associated with OH− ions in alkaline NaOH electrolyte. This study verifies that the charge storage mechanism of NMO strongly depends on the type of electrolyte, and even in the same electrolyte, different charging behaviors are revealed in different potential ranges which should be carefully taken into account when optimizing the use of the electrode materials in practical energy-storage devices. |
Keyword | Supercapacitor Cation-intercalated Manganese Oxide Charge Storage Mechanism Operando Raman Electrochemical Quartz Crystal Microbalance |
DOI | 10.1002/aenm.201802707 |
Indexed By | SCI |
If | 21.875 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/24751 |
Collection | 清洁能源化学与材料实验室 |
Corresponding Author | Yan XB(阎兴斌) |
Affiliation | 1.Laboratory of Clean Energy Chemistry and Materials State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese of Academy of Sciences Lanzhou China 2.Department of Chemistry Bar-Ilan University Ramat-Gan Israel 3.Center of Materials Science and Opoelectronics Engineering University of Chinese Academy of Sciences Beijing China 4.School of Physical Science and Technology Lanzhou University Lanzhou China 5.Department of Materials Science and Engineering University of Science and Technology of China Hefei China 6.School of Material Science and Engineering Lanzhou University of Technology Lanzhou China 7.Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China |
Recommended Citation GB/T 7714 | Zhang QN,Mikhael D. Levi,Dou QY,et al. The Charge Storage Mechanisms of 2D Cation-Intercalated Manganese Oxide in Different Electrolytes[J]. Advanced Energy Materials,2018,8(34):1-10. |
APA | Zhang QN.,Mikhael D. Levi.,Dou QY.,Lu YL.,Chai YG.,...&Yan XB.(2018).The Charge Storage Mechanisms of 2D Cation-Intercalated Manganese Oxide in Different Electrolytes.Advanced Energy Materials,8(34),1-10. |
MLA | Zhang QN,et al."The Charge Storage Mechanisms of 2D Cation-Intercalated Manganese Oxide in Different Electrolytes".Advanced Energy Materials 8.34(2018):1-10. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
Zhang_et_al-2018-Adv(1798KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment