Sacrificial MOF-derived MnNi hydroxide for high energy storage supercapacitor electrodes via DFT-based quantum capacitance study.

Elahe Torabi, Amir Kazemi, Mohsen Tamtaji, Faranak Manteghi, Sohrab Rohani, William A Goddard

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Article in Heliyon, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Elahe TorabiResearch Laboratory of Inorganic Chemistry and Environment, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran.

Amir KazemiResearch Laboratory of Inorganic Chemistry and Environment, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran.

Mohsen TamtajiDepartment of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran.

Faranak ManteghiResearch Laboratory of Inorganic Chemistry and Environment, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran.

Sohrab RohaniDepartment of Chemical and Biochemical Engineering, Western University, London, ON, N6A 5B9 Canada.

William A GoddardMaterials and Process Simulation Center, California Institute of Technology, Pasadena, CA, 91125, USA.

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No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electrochemical energy storage plays a critical role in the transition to clean energy. With the growing demand for efficient and sustainable energy solutions, supercapacitors have gained significant attention due to their high specific capacitance, rapid charge/discharge capabilities, long lifespan, safe operation across various temperatures, and minimal maintenance needs. This study introduces a novel approach for the synthesis of high-performance supercapacitor electrodes by using MnNi-MOF-74 as a precursor. Bimetallic Mn(OH)₂/Ni(OH)₂ hydroxides (MnNi-x, where x = 2, 6, 12) with tailored morphologies were successfully fabricated by treating MnNi-MOF-74 anchored on nickel foam with different concentrations of KOH. Among the various synthesized samples, MnNi-6 exhibited the best performance, with a remarkable specific capacitance of 4031.51 mF cm⁻

Indexed as

Bimetallic hydroxideDFT calculationsMOF-74Supercapacitor

Identifiers

PMID39811370

DOI10.1016/j.heliyon.2024.e41261

PMCPMC11731572

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