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题名: High power density electric double-layer capacitor based on a porous multi-walled carbon nanotube microsphere as a local electrolyte micro-reservoir
作者: Gao, S(高珊); Wang, K; Du, ZL; Wang, YL(王亚龙); Yuan, AB; Lu, W(卢威); Chen, LW(陈立桅)
通讯作者: Lu, W (卢威)
刊名: CARBON
发表日期: 2015
DOI: 10.1016/j.carbon.2015.04.034
卷: 92, 页:8
收录类别: SCI
部门归属: 纳米研究国际实验室
英文摘要: A high rate capability is a primary requirement for an electric double-layer capacitor (EDLC) in practical applications, which is mainly governed by the ionic diffusion rate. Construction of the electrode structure with proper paths for the rapid transport of ions is an efficient method to facilitate the diffusion of ions in the electrode. In this study, we prepared multi-walled carbon nanotube microspheres (MWNTMS) with a stable porous structure via the spray drying method. The MWNTMS act as a local electrolyte micro-reservoir and provide stable ion transport paths in the EDLC electrode, which will facilitate the access of the electrode to the electrolyte and accelerate the diffusion rate of the ions. Using only MWNTMS as active materials, an areal capacitance of 105 mF/cm(2) at 30 A/g is observed at an areal density of 7.2 mg/cm(2). When the MWNTMS are combined with reduced graphene oxides (rGO) to form an rGO-MWNTMS hybrid electrode with an areal density of 3.0 mg/cm(2), a high areal capacitance of 136 mF/cm(2) at 100 A/g is observed. This rGO-MWNTMS-based EDLC presents a high areal power density of 1540 mW/cm(2). These favorable results indicate that MWNTMS are promising materials for applications in high power supercapacitors. (C) 2015 Elsevier Ltd. All rights reserved.
语种: 英语
JCR小类分区: 一区
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内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/3305
Appears in Collections:纳米研究国际实验室_陈立桅团队_期刊论文

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Recommended Citation:
Gao, S,Wang, K,Du, ZL,et al. High power density electric double-layer capacitor based on a porous multi-walled carbon nanotube microsphere as a local electrolyte micro-reservoir[J]. CARBON,2015,92:8.
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