期刊
JOURNAL OF ENERGY CHEMISTRY
卷 27, 期 3, 页码 836-842出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jechem.2017.05.009
关键词
Porous-yarn; Flexible supercapacitor; Adsorption phenomenon; Capillary action; Wire-shaped electrode
资金
- Priority Academic Program Development of Jiangsu Higher Education Institutions [YX03001]
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Synergistic Innovation Center for Organic Electronics and Information Displays
- Jiangsu Provincial NSF [BK20160890, BK20141424, BK20150863]
- Jiangsu Province Six Talent Peak [2014-XCL-014]
- Qing Lan Project of Jiangsu Province
- Scientific Research Foundation of NUPT [NY214183, NY215014, NY215152]
The deposition of active materials directly onto metal wires is a general strategy to prepare wire-shaped electrodes for flexible and wearable energy storage devices. However, it is still a critical challenge to coat active materials onto the aimed metal wires because of their smooth surface and small specific surface area. In this work, high porous nickel yarns (PNYs) was fabricated using commercial nylon yarns as templates through step-wise electroless plating, electroplating and calcination processes. The PNYs are composed of multiplied fibers with hollow tubular structure of 5-10 mu m in diameter, allowing the imbibition of carbon nanotubes (CNTs) solution by a facile capillary action process. The prepared CNTs/PNY electrodes showed a typical electrochemical double layer capacitive performance and the constructed allsolid flexible wire-shaped symmetric supercapacitors provided a specific capacitance of 4.67 F/cm(3) with good cycling stability at a current density of 0.6 A/cm(3). (C) 2017 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
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