화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.30, No.1, 11-16, February, 2019
DOI10.14478/ace.2018.1090  Export Citation
수퍼커패시터용 니켈/트리메식 산 기반 금속-유기구조체 전극의 전기화학적 거동에 열처리 온도가 미치는 효과
Effect of Thermal Treatment Temperature on Electrochemical Behaviors of Ni/trimesic Acid-based Metal Organic Frameworks Electrodes for Supercapacitors
김정현1, 2, 정용주3, 김 석1, †
  • 1부산대학교 화공 생명공학부
  • 2삼성전자 LED사업부
  • 3한국기술교육대학교 화학공학과
Jeonghyun Kim1, 2, Yongju Jung3, and Seok Kim1, †
  • 1Department. of Chemical and Biochemical Engineering, Pusan National University, 2, Busandaehak-ro 63, Geumjeong-gu, Busan 46241, South Korea
  • 2LED Business, Samsung Electronics, 1, Samsung-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17113, South Korea
  • 3Department. of Chemical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan, Chungnam 31253, South Korea
E-mail:
Ni-benzene-1,3,5-tricarboxylic acid based metal organic frameworks were successfully synthesized by hydrothermal method and thermally treated at various temperature. The electrochemical performance of composites was investigated using cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy. Among all prepared composites, the samples annealed at 250 ℃ showed the highest capacitance with a low resistance, and high cycle stability. It was possible to obtain the low electrical resistance and high electric conductivity of the electrode by improved microstructure and morphology after the thermal annealing at 250 ℃. The samples annealed at 250 ℃ also displayed the maximum specific capacitance with a value of 953 Fg-1 at a current density of 0.66 A/g-1 in 6 M KOH electrolyte. Moreover, a 86.4% of the initial specific capacitance of the composite was maintained after 3,000 times charge-discharge cycle tests. Based on these properties, it can be concluded that the composite could be applied as potential supercapacitor electrode materials.
Keywords:Metal-organic framework;Hydrothermal method;Capacitance;Electrode;Supercapacitor
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