| Novel and high-performance asymmetric micro-supercapacitors based on graphene quantum dots and polyaniline nanofibers | |
| Department | 清洁能源化学与材料实验室 |
Liu WW(刘文文)1,2,3; Yan XB(阎兴斌)1,2 ; Chen JT(陈江涛)1; Feng YQ(冯亚强)1; Xue QJ(薛群基)2; Yan XB(阎兴斌)
| |
| The second department | 固体润滑国家重点实验室 |
| 2013 | |
| Source Publication | Nanoscale
 |
| ISSN | 2040-3364 |
| Volume | 5Issue:13Pages:6053-6062 |
| Abstract | In comparison with graphene sheets, graphene quantum dots (GQDs) exhibit novel chemical/physical properties including nanometer-size, abundant edge defects, good electrical conductivity, high mobility, chemical inertia, stable photoluminescence and better surface grafting, making them promising for fabricating various novel devices. In the present work, an asymmetric micro-supercapacitor, using GQDs as negative active material and polyaniline (PANI) nanofibers as positive active material, is built for the first time by a simple and controllable two-step electro-deposition on interdigital finger gold electrodes. Electrochemical measurements reveal that the as-made GQDs//PANI asymmetric micro-supercapacitor has a more excellent rate capability (up to 1000 V s_1) than previously reported electrode materials, as well as faster power response capability (with a very short relaxation time constant of 115.9 μs) and better cycling stability after 1500 cycles in aqueous electrolyte. On this basis, an all-solid-state GQDs// PANI asymmetric micro-supercapacitor is fabricated using H3PO4–polyvinyl alcohol gel as electrolyte, which also exhibits desirable electrochemical capacitive performances. These encouraging results presented here may open up new insight into GQDs with highly promising applications in highperformance energy-storage devices, and further expand the potential applications of GQDs beyond the energy-oriented application of GQDs discussed above. |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1039/c3nr01139a |
| Funding Organization | the Top Hundred Talents Program of the Chinese Academy of Sciences;the National Nature Science Foundations of China (51005225);the Youth Science Foundations of Gansu Province (1107RJYA274) |
| Indexed By | SCI |
| If | 6.739 |
| Language | 英语 |
| Funding Project | 低维材料与化学储能课题组;低维材料摩擦学组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4698 |
| 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.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China |
| Recommended Citation GB/T 7714 | Liu WW,Yan XB,Chen JT,et al. Novel and high-performance asymmetric micro-supercapacitors based on graphene quantum dots and polyaniline nanofibers[J]. Nanoscale,2013,5(13):6053-6062. |
| APA | Liu WW,Yan XB,Chen JT,Feng YQ,Xue QJ,&阎兴斌.(2013).Novel and high-performance asymmetric micro-supercapacitors based on graphene quantum dots and polyaniline nanofibers.Nanoscale,5(13),6053-6062. |
| MLA | Liu WW,et al."Novel and high-performance asymmetric micro-supercapacitors based on graphene quantum dots and polyaniline nanofibers".Nanoscale 5.13(2013):6053-6062. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| c3nr01139a.pdf（1109KB） | 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