Unveiling a cutting-edge bi-ligand nickel metal-organic framework as an electrode material for symmetric supercapacitors

Kale, Amol M.; Biradar, Madan R.; Cho, Won-Je; Kaya, Cengiz; Bhosale, Sheshanath V.; Bhosale, Sidhanath V.; Kim, Byung Chul

doi:10.1016/j.est.2023.109123

Cited by 3 publications

(1 citation statement)

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“…The XPS spectral peaks at 534.9 eV for NDI-Tyr and 534.8 eV for Ni-Tyr-NDI-MOF are ascribed to the C–OH bonds, The spectral peaks 531.5 and 531.7 eV are exhibited (CO) bonds, while the additional peaks 532.1 and 531.7 eV are ascribed to the (C–O) bonds. The Ni-Tyr-NDI-MOF spectral peak at 530 eV is ascribed to the Ni–O bond. , In the XPS Ni 2p spectra of Ni-Tyr-NDI-MOF , the characteristic peaks at 856.5 and 874.6 eV could be ascribed to the Ni 2+ orbitals Ni 2p 3/2 and Ni 2p 1/2 , respectively, indicating the successful incorporation of Ni ion in the organic ligand, creating MOF hybrid materials. The characteristic peaks at 859.3 and 880.3 eV coincide with the satellite peaks of Ni 2p 3/2 and Ni 2p 1/2 , respectively.…”

Section: Resultsmentioning

confidence: 98%

Nickel Metal–Organic Frameworks of Amino Acid Tyrosine-Functionalized Naphthalenediimide for Pseudocapacitor Applications

Jagadale,

Bhosale,

Bhosale

2024

ACS Appl. Eng. Mater.

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Pseudocapacitors (PSCs) have attracted researcher's attention as electrical energy-storage (EES) devices for modern technology with higher electrochemical performance. PSCs exhibit higher power density (PD), and structural manipulation of electrode should be done to achieve great energy density, longer cycling stability, and simple device architecture. Metal−organic framework has been one of the targeted electrode materials for PSC applications. To achieve higher efficiency and stability, newer materials based on π-conjugated redox molecular structures and biologically important amino acids are an attractive choice for the researchers. Herein, we synthesized nickel chloride (Ni), tyrosine (Tyr,) and naphthalene diimide (NDI) based Ni-Tyr-NDI-MOF via salvo thermal method. The active Ni-Tyr-NDI-MOF material is utilized for the fabrication of Ni-Tyr-NDI-MOF/graphite foil (GF) electrode. The Ni-Tyr-NDI-MOF/ GF electrode in the three-electrode supercapacitor configuration displayed great achievement at 5 mV s −1 scan rate with a specific capacitance (C sp ) of 294.20 and 330.71 F g −1 at 1 A g −1 current density within the 0.0 to 1.4 V potential range. Furthermore, Ni-Tyr-NDI-MOF/GF-based symmetric supercapacitor (SSC) was fabricated at 0.5 A g −1 which displayed a C sp of 180 F g −1 , an energy density of 44.1 Wh kg −1 , and a power density of 1265.02 W kg −1 . The SSC device exhibited excellent cycling stability of 82% after 10,000 galvanostatic charging−discharging cycles. We believe that the Ni-Tyr-NDI-MOF/GF electrode with its excellent electrochemical performance has great potential in EES applications.

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Section: Resultsmentioning

confidence: 98%