화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.61, 181-187, May, 2018
DOI10.1016/j.jiec.2017.12.015  Export Citation
Hierarchical porous flower-like nickel cobaltite nanosheets as a binder-less electrode for supercapacitor application with ultra-high capacitance
Tae Hyun Kim, Ganesh Kumar Veerasubramani, and Sang Jae Kim†
  • Department of Mechatronics Engineering, Jeju National University, Jeju 690-756, South Korea
E-mail:
Herein, we present a large-scale growth of porous hierarchical structure of three-dimensional (3D) flower-shaped nickel cobaltite (PFNC) nanosheets on Ni foam current collector with hardy adhesion as high-performance electrode for supercapacitors via facile hydrothermal method and then post annealing treatment. The availability of porous architecture increases the electroactive cites and facilitates speedy ion and electron conduction during electrochemical reactions. The prepared material shows an excellent specific capacitance of 2100 F g 1 (4.24 F cm 2) at 5 mV s 1 scan rate by cyclic voltammetry analysis. Overall results divulge that the binder-less PFNC electrode will be a promising electrode material for supercapacitors.
Keywords:Binder-free electrode;NiCo2O4;Porous electrode;Supercapacitor;Specific capacitance
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