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August 1, 2026ChemNanoMat

Comparative Electrochemical Study of Tetra‐Carboxylate Linked Ni‐MOF and Cr‐MOF for Supercapacitor Application

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Authors

SKSai P. KatkeGSGaurav SinghTFTanzeem Fatema

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Overview

Comparative electrochemical study evaluates capacitance in nickel and chromium-based MOFs, suggesting performance implications.

Key Points

  • This research aims to compare the electrochemical performance of nickel-based and chromium-based metal organic frameworks for supercapacitor applications.
  • Synthesize Ni-MOF and Cr-MOF via a solvothermal route using a tetra-carboxylate organic linker.
  • Examine structural, chemical, and morphological features using FT‐IR, PXRD, TGA, BET, XPS, and SEM.
  • Evaluate specific capacitance at a current density of 1 A g−1 and cycling stability over charge-discharge cycles.
  • Ni-MOF displayed a specific capacitance of 405 F g−1 at 1 A g−1, while Cr-MOF showed 48 F g−1 at the same current density.
  • Cr-MOF demonstrated superior cycling stability, retaining 87% capacitance after 1000 cycles compared to Ni-MOF's 40% retention after 500 cycles.
  • Enhanced capacitance in Ni-MOF is attributed to redox-active nickel centers, while Cr-MOF benefits from higher stability owing to chromium centers.

Cite This Study

Katke et al. (2026) studied this question.

synapsesocial.com/papers/6a6d985be258b358b3c6ba4fhttps://doi.org/10.1002/cnma.70338
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