High Packing Density Unidirectional Arrays of Vertically Aligned Graphene with Enhanced Areal Capacitance for High-Power Micro-Supercapacitors
文献类型：期刊论文
| 作者 | Zheng, Shuanghao1,2,4; Li, Zhilin3,4; Wu, Zhong-Shuai1; Dong, Yanfeng1; Zhou, Feng1; Wang, Sen1,4; Fu, Qiang1,2; Sun, Chenglin1; Guo, Liwei3; Bao, Xinhe1,2 |
| 刊名 | ACS NANO
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 11期号:4页码:4009-4016 |
| 关键词 | vertically aligned graphene high power micro-supercapacitors on-chip energy storage electrochemical capacitors |
| 英文摘要 | Interfacial integration of a shape-engineered electrode with a strongly bonded current collector is the key for minimizing both ionic and electronic resistance and then developing high-power supercapacitors. Herein, we demonstrated the construction of high power micro-supercapacitors (VG-MSCs) based on high-density unidirectional arrays of vertically aligned graphene (VG) nanosheets, derived from a thermally decomposed SiC substrate. The as-grown VG arrays showed a standing basal plane orientation grown on a (000 (1) over bar) SiC substrate, tailored thickness (3.5-28 mu m), high-density structurally ordering alignment of graphene consisting of 1-5 layers, vertically oriented edges, open intersheet channels, high electrical conductivity (192 S cm(-1)), and strong bonding of the VG edges to the SiC substrate. As a result, the demonstrated VG-MSCs displayed a high areal capacitance of similar to 7.3 mF cm(-2) and a fast frequency response with a short time constant of 9 ms. Furthermore, VG-MSCs in both an aqueous polymer gel electrolyte and nonaqueous ionic liquid of 1-ethyl-3-methylimidazolium tetrafluoroborate operated well at high scan rates of up to 200 V s(-1). More importantly, VG-MSCs offered a high power density of similar to 15 W cm(-3) in gel electrolyte and similar to 61 W cm(-3) in ionic liquid. Therefore, this strategy of producing high-density unidirectional VG nanosheets directly bonded on a SiC current collector demonstrated the feasibility of manufacturing high-power compact supercapacitors. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 关键词[WOS] | HIGH VOLUMETRIC CAPACITANCE ; WALLED CARBON NANOTUBES ; DOUBLE-LAYER CAPACITORS ; HIGH-PERFORMANCE ; ELECTROCHEMICAL CAPACITORS ; ON-CHIP ; ORIENTED GRAPHENES ; SILICON NANOWIRES ; ENERGY-STORAGE ; FILMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000400233200061 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/151962]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Res & Dev Ctr Funct Crystals, POB 603, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Shuanghao,Li, Zhilin,Wu, Zhong-Shuai,et al. High Packing Density Unidirectional Arrays of Vertically Aligned Graphene with Enhanced Areal Capacitance for High-Power Micro-Supercapacitors[J]. ACS NANO,2017,11(4):4009-4016. |
| APA | Zheng, Shuanghao.,Li, Zhilin.,Wu, Zhong-Shuai.,Dong, Yanfeng.,Zhou, Feng.,...&Bao, Xinhe.(2017).High Packing Density Unidirectional Arrays of Vertically Aligned Graphene with Enhanced Areal Capacitance for High-Power Micro-Supercapacitors.ACS NANO,11(4),4009-4016. |
| MLA | Zheng, Shuanghao,et al."High Packing Density Unidirectional Arrays of Vertically Aligned Graphene with Enhanced Areal Capacitance for High-Power Micro-Supercapacitors".ACS NANO 11.4(2017):4009-4016. |
入库方式： OAI收割
来源：大连化学物理研究所
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