Silica-grafted ionic liquids for revealing the respective charging behaviors of cations and anions in supercapacitors | |
Department | 清洁能源化学与材料实验室 |
Dou QY(窦青云)1,2; Liu LY(刘灵洋)1,2; Yang BJ(杨兵军)1; Lang JW(郎俊伟)1; Yan XB(阎兴斌)1; Yan XB(阎兴斌) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Nature Communications |
ISSN | 2041-1723 |
Volume | 8Pages:2188(1-9) |
Abstract | Supercapacitors based on activated carbon electrodes and ionic liquids as electrolytes are capable of storing charge through the electrosorption of ions on porous carbons and represent important energy storage devices with high power delivery/uptake. Various computational and instrumental methods have been developed to understand the ion storage behavior, however, techniques that can probe various cations and anions of ionic liquids separately remain lacking. Here, we report an approach to monitoring cations and anions independently by using silica nanoparticle-grafted ionic liquids, in which ions attaching to silica nanoparticle cannot access activated carbon pores upon charging, whereas free counter-ions can. Aided by this strategy, conventional electrochemical characterizations allow the direct measurement of the respective capacitance contributions and acting potential windows of different ions. Moreover, coupled with electrochemical quartz crystal microbalance, this method can provide unprecedented insight into the underlying electrochemistry. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1038/s41467-017-02152-5 |
Funding Organization | the National Nature Science Foundations of China (21573265;21673263) |
Indexed By | SCI |
If | 12.124 |
Language | 英语 |
Funding Project | 低维材料与化学储能研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22795 |
Collection | 清洁能源化学与材料实验室 固体润滑国家重点实验室(LSL) |
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, Lanzhou 730000 China 2.University of Chinese Academy of Sciences, Beijing 100080 China |
Recommended Citation GB/T 7714 | Dou QY,Liu LY,Yang BJ,et al. Silica-grafted ionic liquids for revealing the respective charging behaviors of cations and anions in supercapacitors[J]. Nature Communications,2017,8:2188(1-9). |
APA | Dou QY,Liu LY,Yang BJ,Lang JW,Yan XB,&阎兴斌.(2017).Silica-grafted ionic liquids for revealing the respective charging behaviors of cations and anions in supercapacitors.Nature Communications,8,2188(1-9). |
MLA | Dou QY,et al."Silica-grafted ionic liquids for revealing the respective charging behaviors of cations and anions in supercapacitors".Nature Communications 8(2017):2188(1-9). |
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