Hierarchically porous Ni monolith@branch-structured NiCo2O4 for high energy density supercapacitors
- Resource Type
- Academic Journal
- Authors
- Mengjie Xu; Rongjun Xu; Ying Zhao; Libao Chen; Boyun Huang; Weifeng Wei n
- Source
- 自然科学进展(英文版). 26(3):276-282
- Subject
- Supercapacitors
NiCo2O4 nanostructures
Porous Ni monolith
Energy density
- Language
- Chinese
- ISSN
- 1002-0071
A variety of NiCo2O4 nanostrucutures ranging from nanowire to nanoplate and branched structures were successfully prepared via a simple hydrothermal process. The experimental results show that NiCo2O4 with branched structures possesses the best overall electrochemical performance. The improvement of energy density was explored in terms of hierarchically three-dimensional (3D) metal substrates and a high specific area capacitance, and area energy density is obtained with hierarchically porous Ni monolith synthesized through a controlled combustion procedure.