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- Title
ZnCohydrotalcite on Ni foam for high-performance supercapacitor.
- Authors
Yubin Yang; Shaomin Zhu; Hongfeng Xu
- Abstract
In this paper, hierarchical three-dimensional porous flower of ZnCohydrotalcite non-planar nanosheets were prepared on the surface of Ni foam by in-situ hydrothermal method. Within this material, the foam Ni acted as structural support and nickel sources providing additional active components. This ZnCohydrotalcite demonstrated to have an high specific capacitance reaching 5437.6 mF cm-2 at 10 mA cm-2 when the ratio of Zn:Co was 2:8 in precursors. Moreover, an asymmetric supercapacitor with obtained ZnCohydrotalcite as anode while activated carbon as cathode exhibited high electrochemical property (30.1 F g-1) and 84.3 % capacitance retention after 20000 cycles at 1 A g-1.
- Subjects
FOAM; SUPERCAPACITOR electrodes; ACTIVATED carbon; NANOSTRUCTURED materials; ELECTRIC capacity; CATHODES
- Publication
Vibroengineering Procedia, 2023, Vol 48, p67
- ISSN
2345-0533
- Publication type
Article
- DOI
10.21595/vp.2023.23142