Correction: Moniruzzaman et al. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO2 Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187

Moniruzzaman, Md; Anil Kumar, Yedluri; Pallavolu, Mohan Reddy; Arbi, Hammad Mueen; Alzahmi, Salem; Obaidat, Ihab M.

doi:10.3390/nano15231784

Open AccessCorrection

Correction: Moniruzzaman et al. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO₂ Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187

by

Md Moniruzzaman

¹,

Yedluri Anil Kumar

^2,3

,

Mohan Reddy Pallavolu

⁴

,

Hammad Mueen Arbi

^2,3,

Salem Alzahmi

^3,5,*

and

Ihab M. Obaidat

^2,3,*

¹

Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Gyeonggi-do, Republic of Korea

²

Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates

³

National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates

⁴

School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea

⁵

Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates

^*

Authors to whom correspondence should be addressed.

Nanomaterials 2025, 15(23), 1784; https://doi.org/10.3390/nano15231784

Submission received: 17 November 2025 / Accepted: 19 November 2025 / Published: 27 November 2025

(This article belongs to the Special Issue Transition Metal-Based Nanomaterials for Electrochemical Energy Conversion/Storage Applications)

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Versions Notes

In the published paper [1], there was an error in Figures 2 and 5c. The new schematic diagram (Figure 1), which is based on the new Figure 2, also requires correction. No changes were made to the conclusion or findings of the paper. The corrected Figure 1, Figure 2 and Figure 5 are shown below. This correction was approved by the Academic Editor. The original publication has also been updated.

Reference

Moniruzzaman, M.; Anil Kumar, Y.; Pallavolu, M.R.; Arbi, H.M.; Alzahmi, S.; Obaidat, I.M. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO₂ Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187. [Google Scholar] [CrossRef] [PubMed]

Figure 1. Schematic diagram of the cobalt-doped@MnO₂ nanosheet composite.

Figure 2. (a) SEM images of the MnO₂ sample; (b) an SEM image of the cobalt-doped@MnO₂ nanosheets composite; (c) a TEM image of the cobalt-doped@MnO₂ nanosheets composite; and (d) an HRTEM image revealing the crystalline structure of the MnO₂ nanosheets.

Figure 5. (a) Specific capacitances of binary MnO₂ nanoparticles and cobalt-doped@MnO₂ nanosheets composite electrodes; (b) charge–discharge cycling stability of binary MnO₂ nanoparticles and cobalt-doped@MnO₂ nanosheets composite electrodes at 2 A g⁻¹; (c) an SEM image of the cobalt-doped@MnO₂ nanosheets composite after 3000 long cycles; and (d) a Nyquist plot of after 3000 GCD cycles of binary MnO₂ nanoparticles and cobalt-doped@MnO₂ nanosheets composite electrodes.

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© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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MDPI and ACS Style

Moniruzzaman, M.; Anil Kumar, Y.; Pallavolu, M.R.; Arbi, H.M.; Alzahmi, S.; Obaidat, I.M. Correction: Moniruzzaman et al. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO₂ Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187. Nanomaterials 2025, 15, 1784. https://doi.org/10.3390/nano15231784

AMA Style

Moniruzzaman M, Anil Kumar Y, Pallavolu MR, Arbi HM, Alzahmi S, Obaidat IM. Correction: Moniruzzaman et al. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO₂ Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187. Nanomaterials. 2025; 15(23):1784. https://doi.org/10.3390/nano15231784

Chicago/Turabian Style

Moniruzzaman, Md, Yedluri Anil Kumar, Mohan Reddy Pallavolu, Hammad Mueen Arbi, Salem Alzahmi, and Ihab M. Obaidat. 2025. "Correction: Moniruzzaman et al. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO₂ Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187" Nanomaterials 15, no. 23: 1784. https://doi.org/10.3390/nano15231784

APA Style

Moniruzzaman, M., Anil Kumar, Y., Pallavolu, M. R., Arbi, H. M., Alzahmi, S., & Obaidat, I. M. (2025). Correction: Moniruzzaman et al. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO₂ Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187. Nanomaterials, 15(23), 1784. https://doi.org/10.3390/nano15231784

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Correction: Moniruzzaman et al. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO₂ Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials 2022, 12, 3187

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