We have located links that may give you full text access.
Metal-organic framework-templated 3D hierarchical ZnCo2O4@Ni(OH)2 core-shell nanosheet arrays for high-performance supercapacitor.
Chemistry : a European Journal 2018 September 20
Designing core-shell electrode materials with desired components and architectures is a promising strategy for boosting electrochemical performance. Here, three-dimensional (3D) hierarchical ZnCo2O4@Ni(OH)2 core-shell nanosheet arrays have been successfully fabricated on Ni foam substrate, where the porous ZnCo2O4 nanosheet "core" as the conductive scaffold is synthesized by a metal-organic framework (MOF)-templated method, and ultrathin Ni(OH)2 nanoflakes "shell" with rich active sites are grafted on ZnCo2O4 nanosheet through a hydrothermal treatment. When directly used as a free-standing electrode for supercapacitor, this hierarchical ZnCo2O4@Ni(OH)2 core-shell nanosheet arrays exhibits a high capacitance of 3063.2 mF cm-2 (1021.1 F g-1) at the current density of 1 mA cm-2, which significantly outperforms individual Ni(OH)2 or ZnCo2O4 nanosheet arrays, benefiting from the robust core-shell arrays on Ni foam with good electrical conductivity and abundant active sites, as well as the synergetic effect between MOF-derived porous ZnCo2O4 "core" and the ultrathin Ni(OH)2 "shell". Moreover, the assembled ZnCo2O4@Ni(OH)2//activated carbon asymmetric supercapacitor displays excellent energy density and power density (maximum of 40.0 Wh kg-1 and 8.02 kW kg-1) and superior cycling stability of 98.4% retention with 91.2% coulombic efficiency over 5000 cycles at 10 A g-1.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app