期刊
APPLIED SURFACE SCIENCE
卷 507, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.145089
关键词
MOF; Polypyrrole nanotubes; Asymmetrical supercapacitor
类别
资金
- Natural Science Foundation of Shanxi Province [201801D121284]
- Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
Metal-organic frameworks (MOFs) are widely used as supercapacitor electrode materials because of their large specific surface area and tunable pore structure. However, the limited electronic conductivity of MOFs deteriorates the capacitive performance. Herein, bimetal-organic framework nanosheets wrapping polypyrrole nanotubes (NiCo-MOF@PNTs) were successfully prepared by an easy ultrasonic method. In the NiCo-MOF@PNTs nanocomposites, PNTs can boost the electronic conductivity of NiCo-MOF and effectively impede the aggregation of NiCo-MOF nanosheets. The unique structure of NiCo-MOF@PNTs allows for exhibiting the superior electrochemical performance. The specific capacitance of NiCo-MOF@PNTs is 1109 F g(-1) at 0.5 A g(-1). Furthermore, the assembled NiCo-MOF@PNTs//AC asymmetric supercapacitor demonstrates a high energy density of 41.2 Wh kg(-1) at a power density of 375 W kg(-1), and the excellent cycling stability with a capacitance retention of 79.1% after 10,000 cycles, demonstrating that NiCo-MOF@PNTs nanocomposites are a promising candidate for supercapacitor electrode materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据