estuscience - se Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 2667-4211 Eskisehir Technical University 10.18038/estubtda.1836810 Electrochemical Energy Storage and Conversion Elektrokimyasal Enerji Depolama ve Dönüşüm UTILIZATION OF CO-BDC MOF AS ELECTRODE MATERIAL OF A COIN-CELL TYPE ASYMMETRIC SUPERCAPACITOR UTILIZATION OF CO-BDC MOF AS ELECTRODE MATERIAL OF A COIN-CELL TYPE ASYMMETRIC SUPERCAPACITOR https://orcid.org/0000-0001-8468-3133 Yaşa Sezgin ÇANKIRI KARATEKİN ÜNİVERSİTESİ 03 27 2026 27 1 178 189 12 05 2025 02 21 2026 Copyright © 2000, Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 2000 Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering

Producing electrode materials with high energy density and structural stability is crucial for advanced supercapacitor technologies. In this study, Co-BDC MOF material was synthesized by the solvothermal method and this material was used as an electrode material in an asymmetric supercapacitor device. The structural characterization of the produced Co-BDC MOF material was applied with XRD, FTIR analysis and FE-SEM analysis. The results of these analyses proved the successful production of Co-BDC MOF. Moreover, Co-BDC MOF was used as a material of electrode in the supercapacitor device and its supercapacitive performance was determined by electrochemical tests. According to the electrochemical test results of the supercapacitor device, the areal capacitance values at a scan rate of 5 mV.s-1 were calculated as 68 mF.cm-2. After 5000 cycles, it retained 77.6% of its initial capacitance. At a current density of 0.25 mA.cm-2, the energy and power densities of supercapacitor were determined as 13 µWh.cm-2 and 237 µW.cm-2, respectively. These results show that the Co-BDC MOF has attractive potential for supercapacitor application.

Producing electrode materials with high energy density and structural stability is crucial for advanced supercapacitor technologies. In this study, Co-BDC MOF material was synthesized by the solvothermal method and this material was used as an electrode material in an asymmetric supercapacitor device. The structural characterization of the produced Co-BDC MOF material was applied with XRD, FTIR analysis and FE-SEM analysis. The results of these analyses proved the successful production of Co-BDC MOF. Moreover, Co-BDC MOF was used as a material of electrode in the supercapacitor device and its supercapacitive performance was determined by electrochemical tests. According to the electrochemical test results of the supercapacitor device, the areal capacitance values at a scan rate of 5 mV.s-1 were calculated as 68 mF.cm-2. After 5000 cycles, it retained 77.6% of its initial capacitance. At a current density of 0.25 mA.cm-2, the energy and power densities of supercapacitor were determined as 13 µWh.cm-2 and 237 µW.cm-2, respectively. These results show that the Co-BDC MOF has attractive potential for supercapacitor application.

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