Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, I.R. IRAN
Abstract
Growing environmental concerns and the rapid proliferation of portable electronic devices have spurred intensive interest in the development of efficient batteries and supercapacitors. A major challenge in advancing high-performance supercapacitors lies in the design and optimization of negative electrode materials with higher capacitances. In this study, a metal–organic framework (MOF), NH₂-MIL-101(Fe), was synthesized hydrothermally at a low temperature (130 °C) using 2-aminobenzene-1,4-dicarboxylic acid as the organic linker and Fe–O clusters as the metal nodes. Subsequently, this MOF was combined with graphene oxide (GO) in the presence of urea via a hydrothermal reaction at 180 °C to yield a nanocomposite consisting of iron oxide embedded in a carbonaceous framework (α-Fe₂O₃/C) and reduced graphene oxide (rGO), denoted as Fe₂O₃–rGO. The Fe₂O₃–rGO nanocomposite delivered a high specific capacitance of 482 F g⁻¹ at a specific current of 1 A g⁻¹ within the potential window of –1.1 to 0 V vs. Ag/AgCl in a 0.3 M KOH electrolyte. This value is significantly higher than that of the individual components, MOF (98 F g⁻¹) and rGO (251 F g⁻¹). Moreover, the Fe₂O₃–rGO electrode retained 55% of its initial capacitance at an ultrahigh specific current of 50 A g⁻¹, demonstrating excellent rate capability. The superior performance of the Fe₂O₃–rGO nanocomposite can be attributed to the combined energy storage mechanisms, namely electric double-layer capacitance from rGO and pseudocapacitance from Fe₂O₃, as well as the synergistic interactions between these components. This work represents a promising step toward the development of efficient negative electrode materials for hybrid supercapacitors and batteries, providing a foundation for next-generation energy storage devices.
[18]Freund R., Zaremba O., Arnauts G., Ameloot R., Skorupskii G., Dincă M., Bavykina A., Gascon J., Ejsmont A., Goscianska J., Kalmutzki M., et al., The Current Status of MOF and COF Applications, Angew. Chem. Int. Ed.,60(45): 23975-4001 (2021).
Noori,A. and Ghasemi,M. (2026). Iron Oxide-Reduced Graphene Oxide Nanocomposite Derived from NH₂-MIL-101(Fe) MOF for Negative Electrode Applications in Superbatteries. Nashrieh Shimi va Mohandesi Shimi Iran, 44(4), 31-47.
MLA
Noori,A. , and Ghasemi,M. . "Iron Oxide-Reduced Graphene Oxide Nanocomposite Derived from NH₂-MIL-101(Fe) MOF for Negative Electrode Applications in Superbatteries", Nashrieh Shimi va Mohandesi Shimi Iran, 44, 4, 2026, 31-47.
HARVARD
Noori A., Ghasemi M. (2026). 'Iron Oxide-Reduced Graphene Oxide Nanocomposite Derived from NH₂-MIL-101(Fe) MOF for Negative Electrode Applications in Superbatteries', Nashrieh Shimi va Mohandesi Shimi Iran, 44(4), pp. 31-47.
CHICAGO
A. Noori and M. Ghasemi, "Iron Oxide-Reduced Graphene Oxide Nanocomposite Derived from NH₂-MIL-101(Fe) MOF for Negative Electrode Applications in Superbatteries," Nashrieh Shimi va Mohandesi Shimi Iran, 44 4 (2026): 31-47,
VANCOUVER
Noori A., Ghasemi M. Iron Oxide-Reduced Graphene Oxide Nanocomposite Derived from NH₂-MIL-101(Fe) MOF for Negative Electrode Applications in Superbatteries. NSMSI, 2026; 44(4): 31-47.