Author : Krishnamurthy G 1
Date of Publication :13th February 2018
Abstract: The metal-organic frameworks are the crystalline porous materials of great importance in the fields of energy and environment due to their high surface area and controllable porous structure. In this paper, we present a new solvothermal approach for the synthesis of Ni and Co based MOFs, which exhibit high electrochemical performance. The electrodes of the above Ni-MOF and Co-MOF have been tested for super capacitor and sensor application. The maximum specific capacitance of Ni-MOF was found to be 202F g−1 at a scan rate of 1 A g−1(about 99% capacitance retention after 2000 cycles), which corresponds to a very high energy density of 36.36 W h kg−1 and power density of 0.037 W kg−1. The Co-MOF electrode was used to find the electron transfer capability, which in turn to detect thiocyanate ions. An excellent sensing property and cycling stability were observed with Co-MOF electrode. The Ni-MOF and Co-MOF would be the most promising electrode materials for the hybrid super capacitor and sensor application as studied using the three-electrode system in 0.6 M KOH solution
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