| Exfoliated graphite nanosheets/carbon nanotubes hybrid materials for superior performance supercapacitors | |
Wang, Haibo; Liu, Zhihong; Chen, Xiao; Han, Pengxian; Dong, Shanmu; Cui, Guanglei
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| 2011-06-01 | |
| 发表期刊 | JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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| 卷号 | 15期号:6页码:1179-1184 |
| 摘要 | Nanostructured hybrid material of exfoliated graphite nanosheets and carbon nanotubes (GNSNT) served as supercapacitor electrode materials was presented. The nanostructured hybrid was prepared by a facile chemical reduction method. The hybrid material was characterized by X-ray diffraction technique, transmission electron microscopy, scanning electron microscopy, cyclic voltammetry, galvanostatic charge/discharge cycling, and four-point probe conductivity measurement to represent a well-defined nanostructure possessing a vast number of active sites and delivering the ingredients for a fast effective charge separation network. Our results clearly demonstrated that the hybrid possess a superior performance. A specific capacitance value 266 F/g was obtained for GNSNT hybrid electrode at a current density of 0.1 A/g, while it was only 185 F/g for exfoliated graphite nanosheets (GNS). At a higher current density of 2 A/g, the GNSNT electrode still keeps a specific capacitance of 220 F/g, which is more than double that of GNS. This synergistic effect of the nanostructured hybrid material offers an effective network for charge separation and therefore renders a significantly enhanced specific capacitance and rate capability. |
| 文章类型 | Article |
| 关键词 | Exfoliated-graphite Nanosheets Carbon Nanotubes Hybrid Conducting Networks Supercapacitors |
| 学科领域 | 仿生能源系统 |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1007/s10008-010-1183-9 |
| 关键词[WOS] | DOUBLE-LAYER CAPACITORS ; ELECTROCHEMICAL CAPACITANCE ; CARBON ELECTRODES ; ENERGY-STORAGE ; COMPOSITES ; SURFACE ; DEPOSIT ; FILMS ; OXIDE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Electrochemistry |
| WOS类目 | Electrochemistry |
| WOS记录号 | WOS:000290544100012 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qibebt.ac.cn/handle/337004/578 |
| 专题 | 仿生与固态能源系统研究组 |
| 作者单位 | Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Haibo,Liu, Zhihong,Chen, Xiao,et al. Exfoliated graphite nanosheets/carbon nanotubes hybrid materials for superior performance supercapacitors[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2011,15(6):1179-1184. |
| APA | Wang, Haibo,Liu, Zhihong,Chen, Xiao,Han, Pengxian,Dong, Shanmu,&Cui, Guanglei.(2011).Exfoliated graphite nanosheets/carbon nanotubes hybrid materials for superior performance supercapacitors.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,15(6),1179-1184. |
| MLA | Wang, Haibo,et al."Exfoliated graphite nanosheets/carbon nanotubes hybrid materials for superior performance supercapacitors".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 15.6(2011):1179-1184. |
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