Electrodeposited Nickel Aluminum-layered double hydroxide on Co3O4 as binder-free electrode for supercapacitor
- Title
- Electrodeposited Nickel Aluminum-layered double hydroxide on Co3O4 as binder-free electrode for supercapacitor
- Author
- 배성철
- Keywords
- HIERARCHICAL NANOWIRE ARRAYS; HIGH-PERFORMANCE; HIGH-ENERGY; GRAPHENE; FOAM; COMPOSITES; FILM
- Issue Date
- 2018-12
- Publisher
- SPRINGER
- Citation
- JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 30, no. 3, page. 2419-2430
- Abstract
- Here, we report a heterostructured core-shell electrode consists of cobalt oxide (Co3O4) nanowire core and nickel aluminum (NiAl)-layered double hydroxide (NiAl-LDH; herein Co3O4@LDH) nanosheet shell grown on nickel foam as advanced electrode for supercapacitor. Benefiting from the core-shell configuration and smart hybridization, the optimized Co3O4@LDH core-shell electrode exhibits a high capacitance of 2011Fg(-1) at 2Ag(-1) and remains 1455Fg(-1) at 40Ag(-1), which outperforms the electrochemical performance of individual component of Co3O4 (720Fg(-1) at 2Ag(-1)). A hybrid supercapacitor using Co3O4@LDH as positive electrode and carbon nanotube as negative electrode delivers an energy density of 18.1Whkg(-1) at a power density of 375kWkg(-1) at a current density of 0.5Ag(-1). Smart hybridization of core-shell electrode shows great promise as advanced electrode materials for supercapacitor with high electrochemical performance.
- URI
- https://link.springer.com/article/10.1007%2Fs10854-018-0515-xhttps://repository.hanyang.ac.kr/handle/20.500.11754/121054
- ISSN
- 0957-4522; 1573-482X
- DOI
- 10.1007/s10854-018-0515-x
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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