Effects of Surface Oxygenic Functional Groups on the Electrochemical Properties of Supercapacitor
Du, Xuan; Ma, Shuhui; Zhao, Wei; Qi, Tao; Hua, Chao; Wang, Yi
2017-06-01
发表期刊JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
ISSN1533-4880
卷号17期号:6页码:3729-3734
摘要The surface oxygenic functional groups are significant to the capacity and cycle stability of supercapacitor. Coconut shell-based activated carbon (CS) with high surface oxygen content was used as starting material and reduced by hydrogen. The measurement results of microstructure showed that the specific surface area and total pore volume increased a little. While the surface oxygen content decreased greatly according to the results of X-ray photoelectron spectroscopy (XPS). Electrochemical behaviors of the electrode built with CS and hydrogen reduced CS (HCS) were investigated in two kinds of electrolytes, 6 mol L-1 KOH and 1 mol L-1 Et4NBF4/PC, respectively. The results showed that the surface oxygen groups have little influence to the electrochemical properties of supercapacitor in KOH electrolyte. As for supercapacitor in Et4NBF4/PC, HCS presents higher specific capacitance, higher energy density, better capacity retention and lower leakage current than those of original CS. This indicates that the surface oxygenic functional groups have reaction and impediment to the organic electrolyte. The study not only provides a simple and effective method for large-scale and safe application of supercapacitors using organic electrolyte, but also offers a better understanding of the action of surface functional groups on the electrochemical performances of porous carbon materials.
关键词Supercapacitor Surface Oxygenic Functional Groups Reduction Electrochemical Properties Leakage Current
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1166/jnn.2017.14012
收录类别SCI
语种英语
关键词[WOS]IONIC-LIQUID ELECTROLYTE ; DOUBLE-LAYER CAPACITORS ; CARBON ; PERFORMANCE ; BEHAVIOR ; EDLCS
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
项目资助者National Natural Science Foundation of China(51302264) ; One Hundred Talent Program of Chinese Academy of Science ; National Science Foundation for Distinguished Young Scholars of China(51125018)
WOS记录号WOS:000402483900011
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22641
专题湿法冶金清洁生产技术国家工程实验室
作者单位Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
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Du, Xuan,Ma, Shuhui,Zhao, Wei,et al. Effects of Surface Oxygenic Functional Groups on the Electrochemical Properties of Supercapacitor[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2017,17(6):3729-3734.
APA Du, Xuan,Ma, Shuhui,Zhao, Wei,Qi, Tao,Hua, Chao,&Wang, Yi.(2017).Effects of Surface Oxygenic Functional Groups on the Electrochemical Properties of Supercapacitor.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,17(6),3729-3734.
MLA Du, Xuan,et al."Effects of Surface Oxygenic Functional Groups on the Electrochemical Properties of Supercapacitor".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 17.6(2017):3729-3734.
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