Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 600, Issue -, Pages 72-82Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.05.008
Keywords
Core-shell nanoflower structure; Electrodeposition technique; Bimetal metal organic framework
Categories
Funding
- National Natural Science Foundation of China [22008155, 22075183, 21878188, 21975161]
- Science and Technology Commission of Shanghai Municipality Project [18090503800]
- Shuguang Program of Shanghai Education Development Foundation
- Shanghai Municipal Education Commission [18SG52, 19CG69]
- Chenguang Program of Shanghai Education Development Foundation
- Talent Development Foundation of Shanghai [2018034]
- Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development
Ask authors/readers for more resources
The rational design of composite materials with unique core-shell nanoflower structures is important for improving the electrochemical properties of supercapacitors, and in this study, a hierarchical core-shell nanoflower material (CuCo2O4@CoS-Cu/Co-MOF) was successfully synthesized and exhibited excellent electrochemical performance and potential application prospects.
Rational design of composite materials with unique core-shell nanoflower structures is an important strategy for improving the electrochemical properties of supercapacitors such as capacitance and cycle stability. Herein, a two-step electrodeposition technique is used to orderly synthesize CuCo2O4 and CoS on Ni foam coated with Cu/Co bimetal metal organic framework (Cu/Co-MOF) to fabricate a hierarchical core-shell nanoflower material (CuCo2O4@CoS-Cu/Co-MOF). This unique structure can increase the electrochemically active site of the composite, promoting the Faradaic redox reaction and enhancing its electrochemical properties. CuCo2O4@CoS-Cu/Co-MOF shows a prominent specific capacitance of 3150 F g(-1) at 1 A g(-1), marvelous rate performance of 81.82% (2577.3 F g(-1) at 30 A g(-1)) and long cycle life (maintaining 96.74% after 10,000 cycles). What is more, the assembled CuCo2O4@CoS-Cu/Co-MOF//CNTs device has an energy density of 73.19 Wh kg(-1) when the power density is 849.94 W kg(-1). It has unexpected application prospects. (C) 2021 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available