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Heterostructured 3D-Co-MOF@CoO/Ni‖3D-C-Fe4N@NiCu/SS hybrids as high-performance electrode materials for efficient hybrid supercapacitor

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2023

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Journal of Alloys and Compounds. Elsevier. 2023, 967, 171603. ISSN 0925-8388. eISSN 1873-4669. Available under: doi: 10.1016/j.jallcom.2023.171603

Zusammenfassung

Designing of 3D heterostructured hybrid materials are effective step, in the pursuit of attaining higher electrochemical performance compared to their pristine metal/metal oxide counterparts, owing to the enlarged active area of electrode-electrolyte interaction, and fast ion transportation path. In this regard, binder-free heterostructured electrodes, 3D-Co-MOF@CoO/Ni (positive) and 3D-C-Fe4N@NiCu/SS (negative) are fabricated to construct a hybrid supercapacitor (HSC). This core-shell structured positive electrode revealed better electrochemical performance (592.8mC/cm2 at 2mA/cm2) than bare CoO/Ni, which is nearly twice as good. Meanwhile, the hierarchical microporous 3D-C-Fe4N@NiCu/SS electrode achieved a broad potential of 0 to − 1 V with a maximum areal capacity of 852 mC/cm2 at 2mA/cm2 and 72 % stability over 10000 GCD cycles. The 3D heterostructured morphologies of the electrodes endowed the 3D-Co-MOF@CoO/Ni‖3D-C-Fe4N@NiCu/SS HSC with a high volumetric energy value of 2.305mWh/cm3 with a volumetric power of 325mW/cm3. The unique architecture and engineering strategies adopted in this research work can pave the way to attain desired electrochemical output in the future.

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ISO 690MOHANTY, Ankita, Sohaila Z. NOBY, Lukas SCHMIDT-MENDE, Ananthakumar RAMADOSS, 2023. Heterostructured 3D-Co-MOF@CoO/Ni‖3D-C-Fe4N@NiCu/SS hybrids as high-performance electrode materials for efficient hybrid supercapacitor. In: Journal of Alloys and Compounds. Elsevier. 2023, 967, 171603. ISSN 0925-8388. eISSN 1873-4669. Available under: doi: 10.1016/j.jallcom.2023.171603
BibTex
@article{Mohanty2023Heter-68117,
  year={2023},
  doi={10.1016/j.jallcom.2023.171603},
  title={Heterostructured 3D-Co-MOFCoO/Ni‖3D-C-Fe<sub>4</sub>NNiCu/SS hybrids as high-performance electrode materials for efficient hybrid supercapacitor},
  volume={967},
  issn={0925-8388},
  journal={Journal of Alloys and Compounds},
  author={Mohanty, Ankita and Noby, Sohaila Z. and Schmidt-Mende, Lukas and Ramadoss, Ananthakumar},
  note={Article Number: 171603}
}
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