Influences of the thickness of self-assembled graphene multilayer films on the supercapacitive performance
文献类型：期刊论文
| 作者 | Liu WW(刘文文)1,2; Yan XB(阎兴斌)1 ; Lang JW(郎俊伟)1; Chen JT(陈江涛)1; Xue QJ(薛群基)1; Yan XB(阎兴斌); Yan XB(阎兴斌); Yan XB(阎兴斌)
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| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2012 |
| 卷号 | 60页码:41-49 |
| 关键词 | Graphene Multilayer Self-assembly Electrostatic adsorption Supercapacitors |
| ISSN号 | 0013-4686 |
| 通讯作者 | 阎兴斌 |
| 英文摘要 | In this study, graphene multilayer films with controlled thicknesses deposited on indium tin oxide glass substrates were fabricated using electrostatic layer-by-layer self-assembly of negatively charged graphene oxide followed by hydrazine hydrate reduction. X-ray diffraction spectroscopy, Raman spectroscopy, UV–vis spectroscopy, field emission scanning electron microscopy and atomic force microscopy were used to characterize the microstructures and morphologies of the as-fabricated multilayer films. The supercapacitive properties of the multilayer film electrodes were investigated via cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectrometry in a 0.5 M Na2SO4 electrolyte. The graphene multilayer films employed as the electrode materials not only exhibited nearly rectangular cyclic voltammetry curves at an exceedingly high scan rate of 2000 mV/s, but also exhibited highly linear and symmetrical charge/discharge curves, which indicated that they have ideal electric double-layer capacitive behavior. Furthermore, the supercapacitive performance of the as-prepared graphene multilayer films exhibited a strong dependence on the number of self-assembled layers. Moreover, the specific capacitance per surface area for each self-assembled graphene film exhibited almost no decay after 1500 cycles, implying excellent stability and reversibility. These electrochemical tests indicated that the as-prepared graphene films have great potential for supercapacitor applications. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the Top Hundred Talents Program of the Chinese Academy of Sciences;the National Nature Science Foundations of China (51005225);the Postdoctoral Science Foundation of China (20100480728) |
| 语种 | 英语 |
| WOS记录号 | WOS:000300142100007 |
| 公开日期 | 2013-07-12 |
| 源URL | [http://210.77.64.217/handle/362003/3333]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 通讯作者 | Yan XB(阎兴斌); Yan XB(阎兴斌); Yan XB(阎兴斌) |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu WW,Yan XB,Lang JW,et al. Influences of the thickness of self-assembled graphene multilayer films on the supercapacitive performance[J]. Electrochimica Acta,2012,60:41-49. |
| APA | Liu WW.,Yan XB.,Lang JW.,Chen JT.,Xue QJ.,...&阎兴斌.(2012).Influences of the thickness of self-assembled graphene multilayer films on the supercapacitive performance.Electrochimica Acta,60,41-49. |
| MLA | Liu WW,et al."Influences of the thickness of self-assembled graphene multilayer films on the supercapacitive performance".Electrochimica Acta 60(2012):41-49. |
入库方式： OAI收割
来源：兰州化学物理研究所
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