共 45 条
Facile synthesis of cuboid Ni-MOF for high-performance supercapacitors
被引:275
作者:

Gao, Shuwen
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China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China

Sui, Yanwei
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China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China

Wei, Fuxiang
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机构:
China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China

Qi, Jiqiu
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China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China

Meng, Qingkun
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China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China

He, Yezeng
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h-index: 0
机构:
China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China
机构:
[1] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China
基金:
中国博士后科学基金;
中国国家自然科学基金;
关键词:
METAL-ORGANIC FRAMEWORKS;
ZEOLITIC IMIDAZOLATE FRAMEWORK;
POROUS CARBON MATERIALS;
DIRECT CARBONIZATION;
ENERGY-STORAGE;
NANOPOROUS CARBON;
NICKEL;
COMPOSITES;
COBALT;
TEMPERATURE;
D O I:
10.1007/s10853-018-2005-1
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Metal-organic frameworks (MOF) used directly in supercapacitors have attracted much attention for their special porous structure and potential high performance. Here, the Ni-MOF is fabricated by one-step facile hydrothermal method with a modification of mixed solution with DMF and water instead of pure DMF. After characterization, the Ni-MOF exhibits loosely stacked layer-cuboid structure with abundant mesoporous, which is beneficial for the charge transfer and ion transport for supercapacitors. In the three-electrode system, this Ni-MOF serving as working electrode shows remarkable specific capacitance of 804 Fg(-1) at 1 Ag-1, excellent rate capacitance of 534 Fg(-1) at 10 Ag-1, and with 302 Fg(-1) retention after 5000 cycles, when measured in 2 M KOH electrolyte solution. To make a further research into the practical utility of the Ni-MOF, the Ni-MOF//AC asymmetrical supercapacitor device is assembled with the Ni-MOF and active carbon acted as positive and negative electrode materials, respectively. This device exhibits high specific energy of 31.5 Wh kg(-1), at specific power of 800 W kg(-1). All these results demonstrate that this Ni-MOF is a kind of promising electrode material for high-performance supercapacitors.
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页码:6807 / 6818
页数:12
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