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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•g1 at a current density of 2 A/g and a cycle stability of 76% at 30 Ag1 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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