Porous Co Al-layered Double Hydroxide/ Nickel hydroxide Composite Preparation with Enhanced Capacitive Performance for Supercapacitors
- Title
- Porous Co Al-layered Double Hydroxide/ Nickel hydroxide Composite Preparation with Enhanced Capacitive Performance for Supercapacitors
- Other Titles
- 슈퍼 커패시터에 이용가능한 강화된 전기 용량성 다공의 CoAl층상 이수소 수산화물/산화 니켈 수소 복합 재료를 제조
- Author
- 손경도
- Alternative Author(s)
- Sun Jingtao
- Advisor(s)
- Erfan Zal Nezhad
- Issue Date
- 2017-08
- Publisher
- 한양대학교
- Degree
- Master
- Abstract
- Layered double hydroxides (LDHs) as electrode-active materials have attracted immense research attention for energy storage applications. However, it is still challenging to manufacture an LDH electrode with better electrochemical performance. In this paper, the Co–Al-LDH@Ni(OH)2 composite is prepared in two steps: hydrothermal method and electrodeposition. The structure and morphology reveal prominent features of this electrode material, and the electrochemical properties are investigated by improving the conductivity and cycle stability. The experimental study mainly investigates the material properties via the deposition of different amounts of nickel hydroxide and change in the loading of the active materials. The experimental results reveal a specific capacity of 1810.5 F•g1 at a current density of 2 A/g and a cycle stability of 76% at 30 Ag1 for 3000 cycles. This study provides an advantage for the design and synthesis of LDHs, i.e., a composite, exhibiting excellent electrochemical property, with potential for applications in energy storage.
- URI
- http://hdl.handle.net/20.500.11754/33485http://hanyang.dcollection.net/common/orgView/200000431031
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > MECHANICAL CONVERGENCE ENGINEERING(융합기계공학과) > Theses (Ph.D.)
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