화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.101, 423-429, September, 2021
DOI10.1016/j.jiec.2021.05.034  Export Citation
Chemically synthesized copper sulfide nanoflakes on reduced graphene oxide for asymmetric supercapacitors
Ravindra N. Bulakhe, Akram Alfantazi1, Yong Rok Lee, Moonyong Lee, and Jae-Jin Shim†
  • School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
  • 1Department of Chemical Engineering, Khalifa University of Science and Technology, 127-788, Abu Dhabi, UAE, United Arab Emirates
E-mail:
The present work describes the deposition of coppersulfide (Cu2S) nanoflakes onto reduced graphene oxide (rGO) on three dimensional (3D) nickel foam byinexpensive chemical methods. The nanohybrid structure exhibitedexcellent surface area (41.67 m2 g-1) with a porous structure (pore size 22.8 nm) and good electrical conductivity with a maximum specific capacitance of 1264 F g-1 at a scan rate of 5 mV s-1. The Cu2S@rGOcomposite exhibits a significantlyhigher specific capacitance. The nanohybrid structure showed outstandingcycling stability of 94 % after 10000cycles. The asymmetric supercapacitor (ASC) device, Cu2S@rGO//rGO exhibited a maximumspecific capacitance of 135 F g-1 withhighenergy and power densities of 50 Wh kg-1, and 7000 W kg-1, respectively.
Keywords:Nanohybrid;SILAR;Nickel foam;Asymmetric supercapacitor;Copper sulfide
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