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学科主题: 物理化学
题名: Hierarchically porous carbons with partially graphitized structures for high rate supercapacitors
作者: Jiang, Liang1, 2;  Yan, Jingwang1, 2;  Xue, Rong1, 2;  Hao, Lixing1, 2;  Jiang, Lei1, 3, 4;  Sun, Gongquan1, 2;  Yi, Baolian1, 2
通讯作者: 阎景旺
刊名: JOURNAL OF MATERIALS SCIENCE
发表日期: 2014
DOI: 10.1007/s10853-013-7713-y
卷: 49, 期:1, 页:363-370
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL03
项目归属: DNL03T1
产权排名: 待补充
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
资助者: 1,1
研究领域[WOS]: Materials Science
英文摘要: Partially graphitized hierarchically porous carbons (denoted as GHPCs) were prepared by using ordered mesoporous nickel oxide as template. The mesoporous nickel oxide, which is different from the inert template such as mesoporous silica SBA-15, plays an important role in the synthesis of the carbons with partially graphitized nanostructures at high temperature. X-ray diffraction, transmission electron microscopy and nitrogen adsorption were employed to characterize the structure of GHPCs. It is shown that the GHPC obtained by calcinating the precursor at 700 degrees C has a hierarchically porous structure with the pore size distributions at 8 and 30 nm. Partially graphitized structure leads to the high electrical conductivity of GHPCs. The GHPC prepared at 700 degrees C (GHPC700) shows outstanding high rate performance. Its specific capacitance reaches 91 F g(-1) at a potential scan rate of 500 mV s(-1). Meanwhile the specific capacitance for the GHPC prepared at 600 degrees C (GHPC600) is only 46 F g(-1) at the same scan rate. Synergistic effect of the efficient ion transport in hierarchically porous structure and the high electrical conductivity owing to the partially graphitic structure is contributed to the attractive electrochemical performance of GHPC700.
关键词[WOS]: ORDERED MESOPOROUS CARBONS ;  CAPACITIVE ENERGY-STORAGE ;  ELECTROCHEMICAL PERFORMANCE ;  CATALYTIC GRAPHITIZATION ;  SILICA ;  OXIDE ;  COPOLYMER ;  IMPEDANCE ;  TRIBLOCK
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000328260200038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119761
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Dalian Univ Technol, Sch Chem Engn, Dalian 116024, Peoples R China

Recommended Citation:
Jiang, Liang,Yan, Jingwang,Xue, Rong,et al. Hierarchically porous carbons with partially graphitized structures for high rate supercapacitors[J]. JOURNAL OF MATERIALS SCIENCE,2014,49(1):363-370.
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