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兰州大学机构库  > 化学化工学院  > 期刊论文
题名: Three-Dimensional Hierarchical NixCo1-xO/NiyCo2-yP@C Hybrids on Nickel Foam for Excellent Supercapacitors
作者: Shao, YB; Zhao, YQ(赵永青); Li, H; Xu, CL
收录类别: SCIE ; MEDLINE
出版日期: 2016-12-28
刊名: ACS APPLIED MATERIALS & INTERFACES
卷号: 8, 期号:2-20, 页码:35368-35376
出版者: AMER CHEMICAL SOC
出版地: WASHINGTON
英文摘要: Active materials and special structures of the electrode have decisive influence on the electrochemical properties of supercapacitors. Herein, three-dimensional (3D) hierarchical NixCo1-xO/NiyCo2-yP@C (denoted as NiCoOP@C) hybrids have been successfully prepared by a phosphorization treatment of hierarchical NixCo1-xO@C grown on nickel foam. The resulting NiCoOP@C hybrids exhibit an outstanding specific capacitance and cycle performance because they couple the merits of the superior cycling stability of NixCo1-xO, the high specific capacitance of NiyCo2-yP, the mechanical stability of carbon layer, and the 3D hierarchical structure. The specific capacitance of 2638 F g(-1) can be obtained at the current density of 1 A g(-1), and even at the current density of 20 A g(-1), the NiCoOP@C electrode still possesses a specific capacitance of 1144 F g(-1). After 3000 cycles at 10 A g(-1), 84% of the initial specific capacitance is still remained. In addition, an asymmetric ultracapacitor (ASC) is assembled through using NiCoOP@C hybrids as anode and activated carbon as cathode. The as-prepared ASC obtains a maximum energy density of 39.4 Wh kg(-1) at a power density of 394 W kg(-1) and still holds 21 Wh kg(-1) at 7500 W kg(-1).
关键词: carbon coverage ; excellent performance ; nickel cobalt phosphide ; nickel cobalt oxide ; supercapacitor
作者部门: [Shao, Yubo ; Zhao, Yongqing ; Li, Hua ; Xu, Cailing] Lanzhou Univ, State Key Lab Appl Organ Chem,College Chem & Chem, Key Lab Nonferrous Met Chem & Resources Utilizat, Lab Special Funct Mat & Struct Design,Minist Educ, Lanzhou 730000, Peoples R China
通讯作者: Xu, CL (reprint author), Lanzhou Univ, State Key Lab Appl Organ Chem,College Chem & Chem, Key Lab Nonferrous Met Chem & Resources Utilizat, Lab Special Funct Mat & Struct Design,Minist Educ, Lanzhou 730000, Peoples R China.
学科分类: Science & Technology - Other Topics; Materials Science
文章类型: Article
所属项目编号: Natural Science Foundation of China (NNSFC) [21673105, 21503102] ; Fundamental Research Funds for the Central University [lzujbky-2016-K09] ; Science and Technology Program of Gansu Province of China [145RJZA176] ; Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education [LZUMMM2016008]
所属项目名称: 国家自然科学基金项目 ; 中央高校基本科研业务费专项资金 ; 甘肃省自然科学基金计划
项目资助者: NSFC ; LZU ; GSSTD
语种: 英语
DOI: 10.1021/acsami.6b12881
ISSN号: 1944-8244
WOS记录号: WOS:000391081700046
PM记录号: 27991753
IR记录号: WOS:000391081700046
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/188825
Appears in Collections:化学化工学院_期刊论文

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Recommended Citation:
Shao, YB,Zhao, YQ,Li, H,et al. Three-Dimensional Hierarchical NixCo1-xO/NiyCo2-yP@C Hybrids on Nickel Foam for Excellent Supercapacitors[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(2-20):35368-35376.
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