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Abstract
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In this study, various mixed-linker metal-organic frameworks (MOFs) based on Zn-MOF were successfully syn
thesized using different ratios of 1,3,5-benzenetricarboxylic acid (BTC) and 1,4-benzenedicarboxylic acid (BDC)
as modulator ligands. The characterization results indicated that a lower percentage of BDC ligand effectively
enhances the specific surface area of the MOFs while maintaining their microporous structure. Furthermore, the
supercapacitive behavior of the synthesized Zn-MOFs with varying mixed ligand ratios was evaluated through
electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and galvanostatic charge-discharge
(GCD) measurements in a 6 M KOH electrolyte. Synthesized materials, namely MOF-0 (100 % BTC), MOF-1
(75 % BTC, 25 % BDC), MOF-2 (50 % BTC, 50 % BDC), MOF-3 (25 % BTC, 75 % BDC), and MOF-4 (100 %
BDC) were assessed through GCD tests. These tests demonstrated specific capacitance values of 577, 683, 529,
428, and 302 F/g at a current density of 0.5 A/g, respectively. This impressive performance underscores the
effectiveness of the mixed-linker strategy in optimizing the electrochemical properties of MOF for energy storage
applications.
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