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Published VersionCC BY V4.0, Open Access
Journal article
Boosting capacitive performance of manganese oxide nanorods by decorating with three-dimensional crushed graphene
Nano Convergence, Vol.9, pp.1-12
2022
PMID: 35188595
Abstract
This work reports the rational design of MnOx nanorods on 3D crushed reduced graphene oxide (MnOx/C-rGO) by chemical reduction of Ni-incorporated graphene oxide (GO) followed by chemical etching to remove Ni. The resulting MnOx/C-rGO composite synergistically integrates the electronic properties and geometry structure of MnOx and 3D C-rGO. As a result, MnOx/C-rGO shows a significantly higher specific capacitance (Csp) of 863 F g−1 than MnOx/2D graphene sheets (MnOx/S-rGO) (373 F g−1) and MnOx (200 F g−1) at a current density of 0.2 A g−1. Furthermore, when assembled into symmetric supercapacitors, the MnOx/C-rGO-based device delivers a higher Csp (288 F g−1) than MnOx/S-rGO-based device (75 F g−1) at a current density of 0.3 A g−1. The superior capacitive performance of the MnOx/C-rGO-based symmetric device is attributed to the enlarged accessible surface, reduced lamellar stacking of graphene, and improved ionic transport provided by the 3D architecture of MnOx/C-rGO. In addition, the MnOx/C-rGO-based device exhibits an energy density of 23 Wh kg−1 at a power density of 113 Wkg−1, and long-term cycling stability, demonstrating its promising potential for practical application.
Details
- Title
- Boosting capacitive performance of manganese oxide nanorods by decorating with three-dimensional crushed graphene
- Authors
- Akter Hossain Reaz (Author) - Bangladesh University of Engineering and TechnologyShimul Saha (Author) - Jashore University of Science and TechnologyChanchal Kumar Roy (Author) - Bangladesh University of Engineering and TechnologyMd Abdul Wahab (Author) - The University of QueenslandGeoffrey Will (Author) - Queensland University of TechnologyMohammed A. Amin (Author) - Taif UniversityYusuke Yamauchi (Author) - The University of QueenslandShude Liu (Corresponding Author) - National Institute for Materials ScienceYusuf Valentino Kaneti (Corresponding Author) - The University of QueenslandMd. Shahriar Hossain (Author) - Queensland University of TechnologyShakhawat H. Firoz (Corresponding Author) - Bangladesh University of Engineering and Technology
- Publication details
- Nano Convergence, Vol.9, pp.1-12
- Publisher
- SpringerOpen
- Date published
- 2022
- DOI
- 10.1186/s40580-022-00300-2
- ISSN
- 2196-5404
- PMID
- 35188595
- Copyright note
- This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99737876702621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied