Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitors
Abstract Increasing energy demands, depletion of fossil fuels, and environmental issues have impelled society to choose the pathways of renewable and clean energy, which motivated scientists and engineers to develop sustainable, renewable, and clean energy resources. However, the major challenge is...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-02-01
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| Series: | Nano Select |
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| Online Access: | https://doi.org/10.1002/nano.202200180 |
| _version_ | 1811166551887314944 |
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| author | Balwant Kr. Singh Debabrata Das Navid Attarzadeh Srija N. Chintalapalle Chintalapalle V. Ramana |
| author_facet | Balwant Kr. Singh Debabrata Das Navid Attarzadeh Srija N. Chintalapalle Chintalapalle V. Ramana |
| author_sort | Balwant Kr. Singh |
| collection | DOAJ |
| description | Abstract Increasing energy demands, depletion of fossil fuels, and environmental issues have impelled society to choose the pathways of renewable and clean energy, which motivated scientists and engineers to develop sustainable, renewable, and clean energy resources. However, the major challenge is the implementation of low‐cost, flexible approaches and materials to fulfill the requirements of energy storage and conversion technologies, specifically those involving batteries and supercapacitors. In this context, herein, we demonstrate an integrated approach to realize three‐dimensional (3‐D) mesoporous nickel(Ni)/nickel oxide (NiO) nanostructures with enhanced performance for supercapacitor applications. Conformal deposition of NiO nanoflakes on 3‐D mesoporous Ni onto inexpensive Cu substrates with large active surface area, providing easy ion accessibility through mesoporous channels and improving electron transport through interconnected nickel network. The 3‐D mesoporous Ni/NiO nanoflakes exhibit excellent electrochemical performance, namely, areal capacitance of 720 mFcm−2, energy density of 4 μWhcm−2 and power density of 2.5 mWcm−2 and a reasonable capacity retention for 5000 cycles. We believe that these results may provide a roadmap to further tune the conditions so as to engineer oxide architectures to derive enhanced energy performance of supercapacitor devices for practical applications. |
| first_indexed | 2024-04-10T15:54:21Z |
| format | Article |
| id | doaj.art-e88b52878b4b421c866030ebffe230c8 |
| institution | Directory Open Access Journal |
| issn | 2688-4011 |
| language | English |
| last_indexed | 2024-04-10T15:54:21Z |
| publishDate | 2023-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Nano Select |
| spelling | doaj.art-e88b52878b4b421c866030ebffe230c82023-02-10T19:05:56ZengWiley-VCHNano Select2688-40112023-02-014214515910.1002/nano.202200180Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitorsBalwant Kr. Singh0Debabrata Das1Navid Attarzadeh2Srija N. Chintalapalle3Chintalapalle V. Ramana4Centre for Advanced Materials Research (CMR) University of Texas at El Paso El Paso Texas USACentre for Advanced Materials Research (CMR) University of Texas at El Paso El Paso Texas USACentre for Advanced Materials Research (CMR) University of Texas at El Paso El Paso Texas USACentre for Advanced Materials Research (CMR) University of Texas at El Paso El Paso Texas USACentre for Advanced Materials Research (CMR) University of Texas at El Paso El Paso Texas USAAbstract Increasing energy demands, depletion of fossil fuels, and environmental issues have impelled society to choose the pathways of renewable and clean energy, which motivated scientists and engineers to develop sustainable, renewable, and clean energy resources. However, the major challenge is the implementation of low‐cost, flexible approaches and materials to fulfill the requirements of energy storage and conversion technologies, specifically those involving batteries and supercapacitors. In this context, herein, we demonstrate an integrated approach to realize three‐dimensional (3‐D) mesoporous nickel(Ni)/nickel oxide (NiO) nanostructures with enhanced performance for supercapacitor applications. Conformal deposition of NiO nanoflakes on 3‐D mesoporous Ni onto inexpensive Cu substrates with large active surface area, providing easy ion accessibility through mesoporous channels and improving electron transport through interconnected nickel network. The 3‐D mesoporous Ni/NiO nanoflakes exhibit excellent electrochemical performance, namely, areal capacitance of 720 mFcm−2, energy density of 4 μWhcm−2 and power density of 2.5 mWcm−2 and a reasonable capacity retention for 5000 cycles. We believe that these results may provide a roadmap to further tune the conditions so as to engineer oxide architectures to derive enhanced energy performance of supercapacitor devices for practical applications.https://doi.org/10.1002/nano.2022001803‐D mesoporous nickelelectrodepositionnanoflakesnickel oxidesupercapacitor |
| spellingShingle | Balwant Kr. Singh Debabrata Das Navid Attarzadeh Srija N. Chintalapalle Chintalapalle V. Ramana Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitors Nano Select 3‐D mesoporous nickel electrodeposition nanoflakes nickel oxide supercapacitor |
| title | Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitors |
| title_full | Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitors |
| title_fullStr | Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitors |
| title_full_unstemmed | Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitors |
| title_short | Enhanced electrochemical performance of 3‐D microporous nickel/nickel oxide nanoflakes for application in supercapacitors |
| title_sort | enhanced electrochemical performance of 3 d microporous nickel nickel oxide nanoflakes for application in supercapacitors |
| topic | 3‐D mesoporous nickel electrodeposition nanoflakes nickel oxide supercapacitor |
| url | https://doi.org/10.1002/nano.202200180 |
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