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Nitrogen-containing microporous carbon nanospheres with improved capacitive properties
Su, Fabing1; Poh, Chee Kok2; Chen, Jun Song3; Xu, Guangwen1; Wang, Dan1; Li, Qin4; Lin, Jianyi2; Lou, Xiong Wen3; Su, FB
2011-03-01
发表期刊ENERGY & ENVIRONMENTAL SCIENCE
ISSN1754-5692
卷号4期号:3页码:717-724
摘要We report the largely improved electrochemical capacitance of polypyrrole-derived microporous carbon nanospheres (MCNs, 80-100 nm in diameter) containing nitrogen functional groups. We have investigated the electrochemical properties of precursor polypyrrole nanospheres (PNs, with a high N/C ratio and low surface area) and as-derived carbon nanospheres (CNs, with a moderate N/C ratio and low surface area) prepared by carbonizing PNs at different temperatures, and MCNs (with a low N/C ratio and high surface area) obtained by chemical activation of CNs. The samples are thoroughly characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, thermogravimetric analysis (TGA), nitrogen sorption, elemental analysis, and X-ray photoelectron spectroscopy (XPS). It is found that MCNs with a high surface area and N-doping species exhibit much better capacitive performance compared to the PNs and CNs, and commercial carbon blacks (XC-72 and BP2000) as well. The MCN sample gives a reversible specific capacitance of similar to 240 F g(-1) for 3000 cycles in aqueous media as a result of combined advantages of high electrochemical activity of doped heteroatoms (N and O) and accessible well-developed porosity, demonstrating the promising use in high-energy-density supercapacitors.
关键词Double-layer Capacitance Electrochemical Performance Electrode Material Doped Polypyrrole Materials Science Functional-groups Activated Carbon Enriched Carbons Supercapacitors Polyaniline
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
DOI10.1039/c0ee00277a
收录类别SCI
语种英语
关键词[WOS]DOUBLE-LAYER CAPACITANCE ; ELECTROCHEMICAL PERFORMANCE ; ELECTRODE MATERIAL ; DOPED POLYPYRROLE ; MATERIALS SCIENCE ; FUNCTIONAL-GROUPS ; ACTIVATED CARBON ; ENRICHED CARBONS ; SUPERCAPACITORS ; POLYANILINE
WOS研究方向Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS类目Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS记录号WOS:000287924700011
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被引频次:496[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ipe.ac.cn/handle/122111/5082
专题多相复杂系统国家重点实验室
通讯作者Su, FB
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Inst Chem Engn & Sci, Singapore 627833, Singapore
3.Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637457, Singapore
4.Curtin Univ Technol, Dept Chem Engn, Perth, WA 6845, Australia
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Su, Fabing,Poh, Chee Kok,Chen, Jun Song,et al. Nitrogen-containing microporous carbon nanospheres with improved capacitive properties[J]. ENERGY & ENVIRONMENTAL SCIENCE,2011,4(3):717-724.
APA Su, Fabing.,Poh, Chee Kok.,Chen, Jun Song.,Xu, Guangwen.,Wang, Dan.,...&Su, FB.(2011).Nitrogen-containing microporous carbon nanospheres with improved capacitive properties.ENERGY & ENVIRONMENTAL SCIENCE,4(3),717-724.
MLA Su, Fabing,et al."Nitrogen-containing microporous carbon nanospheres with improved capacitive properties".ENERGY & ENVIRONMENTAL SCIENCE 4.3(2011):717-724.
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