| 초록 |
A lot of novel porous materials with different structures emerged as excellent supercapacitor electrode materials, among which Metal organic frameworks (MOFs) have experienced explosive development during the past decade. In the present work, Ni and Co based bimetallic MOFs are synthesized by a hydrothermal technique. The Ni/Co-MOF are synthesized by using the metal nitrates Ni (NO3)2·6H2O, Co (NO3)2·6H2O and organic ligand as terephthalic acid. The Ni/Co-MOF shows an areal capacitance of 368.9 mFcm-2 (23.1 Fg-1) at scan rate 10 mVs-1 with capacitance retention of 80% (3000 cycles). Also, lithium-ion capacitors have gained attention in recent years for their increased energy density without altering their power density due to their battery nature of charge storage. Therefore, to enhance the performance and application towards lithium-ion capacitors, the synthesized Ni/Co-MOF is incorporated with lithium to enhance the charge-storage capacity, improve in lithium-ion exchange rate, surface area, and chemical activity. |
