超级电容器
电容
纳米片
材料科学
电极
导电体
电流密度
水平扫描速率
光电子学
化学工程
纳米技术
电化学
复合材料
化学
循环伏安法
物理化学
工程类
物理
量子力学
作者
Jie Yang,Zhihua Ma,Gao Wei-xue,Mingdeng Wei
标识
DOI:10.1002/chem.201604071
摘要
Abstract Layered structural Co‐MOF nanosheets were synthesized and then used as an electrode material for supercapacitors for the first time. This material exhibited a high specific capacitance, a good rate capability, and an excellent cycling stability. A maximum capacitance of 2564 F g −1 can be achieved at a current density of 1 Ag −1 . Moreover, the capacitance retention can be kept at 95.8 % respectively of its initial value after 3000 cycles. To the best of our knowledge, both the specific capacitance and the capacitance retention were the highest values reported for MOF materials as supercapacitor electrodes until now. Such a high supercapacitive performance might be attributed to the intrinsic characteristics of this kind of Co‐MOF material, including its layered structure, conductive network frame, and thin nanosheet.
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