| Supercapacitors based on graphene nanosheets using different non-aqueous electrolytes | |
| 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 ; Lang JW(郎俊伟)1; Pu JB(蒲吉斌)2; Xue QJ(薛群基)2; Yan XB(阎兴斌)
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| The second department | 固体润滑国家重点实验室 |
| 2013 | |
| Source Publication | New Journal of Chemistry
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| ISSN | 1144-0546 |
| Volume | 37Issue:7Pages:2186-2195 |
| Abstract | In this study, the electrochemical properties of graphene nanosheet (GNS) electrodes are evaluated in depth by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD) and electrochemical impedance spectroscopy (EIS) techniques in [Et4N]BF4/acetonitrile electrolyte, [BPy]BF4/acetonitrile electrolyte, [BMIM]BF4/acetonitrile electrolyte and [P4,4,4,4]BF4/acetonitrile electrolyte, respectively. The electrochemical results exhibit that GNSs show good supercapacitive properties in these aforementioned four non-aqueous electrolytes, especially in [Et4N]BF4/acetonitrile electrolyte. It is also observed that the rate performance and the specific capacitance of GNS electrode increase in the order of [P4,4,4,4]BF4/acetonitrile ≈ [BMIM]BF4/acetonitrile E [BPy]BF4/acetonitrile ＜ [Et4N]BF4/acetonitrile in these four non-aqueous electrolytes. The reasons are attributed to the difference of the relative ionic size and the discrepancy in the functional group among these four non-aqueous electrolytes, which result in the differences of equivalent series resistance, charge transfer resistance, and rate performance. In addition, the GNS electrode shows excellent stability in these four non-aqueous electrolytes after 1500 repeating charge– discharge cycles. These results may provide valuable information to explore new electrolytes and illustrate the exciting potential for high performance supercapacitors based on GNSs. |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1039/c3nj00335c |
| Funding Organization | the Top Hundred Talents Program of the Chinese Academy of Sciences;the National Nature Science Foundations of China (51105352);the Youth Science Foundations of Gansu Province (1107RJYA274) |
| Indexed By | SCI |
| If | 3.159 |
| 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/362003/4645 |
| 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,Lang JW,et al. Supercapacitors based on graphene nanosheets using different non-aqueous electrolytes[J]. New Journal of Chemistry,2013,37(7):2186-2195. |
| APA | Liu WW,Yan XB,Lang JW,Pu JB,Xue QJ,&阎兴斌.(2013).Supercapacitors based on graphene nanosheets using different non-aqueous electrolytes.New Journal of Chemistry,37(7),2186-2195. |
| MLA | Liu WW,et al."Supercapacitors based on graphene nanosheets using different non-aqueous electrolytes".New Journal of Chemistry 37.7(2013):2186-2195. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| c3nj00335c.pdf（2975KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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