Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric Supercapacitors
Transition−metal−based materials show great promise for energy conversion and storage due to their excellent chemical properties, low cost, and excellent natural properties. In this paper, through simple strategies such as classical electrospinning, air calcination, and the one−step hydrothermal met...
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MDPI AG
2022-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/22/4079 |
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| author | Junzhu Li Xin Chang Xuejiao Zhou Mingyi Zhang |
| author_facet | Junzhu Li Xin Chang Xuejiao Zhou Mingyi Zhang |
| author_sort | Junzhu Li |
| collection | DOAJ |
| description | Transition−metal−based materials show great promise for energy conversion and storage due to their excellent chemical properties, low cost, and excellent natural properties. In this paper, through simple strategies such as classical electrospinning, air calcination, and the one−step hydrothermal method, a large area of Ni(OH)<sub>2</sub> nanosheets were grown on NiMoO<sub>4</sub> nanofibers, forming NiMoO<sub>4</sub>@Ni(OH)<sub>2</sub> nanofibers. The one−dimensional nanostructure was distributed with loose nanosheets, and this beneficial morphology made charge−transfer and diffusion more rapid, so the newly developed material showed good capacitance and conductivity. Under the most suitable experimental conditions, the optimal electrode exhibited the highest specific capacitance (1293 F/g at 1 A/g) and considerable rate capability (56.8% at 10 A/g) under typical test conditions. Most interestingly, the corresponding asymmetrical capacitors exhibited excellent electrochemical cycle stability, maintaining 77% of the original capacitance. NiMoO<sub>4</sub>@Ni(OH)<sub>2</sub> nanofibers were verified to be simple to prepare and to have good performances as energy−storage devices within this experiment. |
| first_indexed | 2024-03-09T18:06:03Z |
| format | Article |
| id | doaj.art-74f77b4c470b4a0ca52e39dfea6ecfcd |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T18:06:03Z |
| publishDate | 2022-11-01 |
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| series | Nanomaterials |
| spelling | doaj.art-74f77b4c470b4a0ca52e39dfea6ecfcd2023-11-24T09:29:20ZengMDPI AGNanomaterials2079-49912022-11-011222407910.3390/nano12224079Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric SupercapacitorsJunzhu Li0Xin Chang1Xuejiao Zhou2Mingyi Zhang3Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, ChinaKey Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, ChinaKey Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, ChinaKey Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, ChinaTransition−metal−based materials show great promise for energy conversion and storage due to their excellent chemical properties, low cost, and excellent natural properties. In this paper, through simple strategies such as classical electrospinning, air calcination, and the one−step hydrothermal method, a large area of Ni(OH)<sub>2</sub> nanosheets were grown on NiMoO<sub>4</sub> nanofibers, forming NiMoO<sub>4</sub>@Ni(OH)<sub>2</sub> nanofibers. The one−dimensional nanostructure was distributed with loose nanosheets, and this beneficial morphology made charge−transfer and diffusion more rapid, so the newly developed material showed good capacitance and conductivity. Under the most suitable experimental conditions, the optimal electrode exhibited the highest specific capacitance (1293 F/g at 1 A/g) and considerable rate capability (56.8% at 10 A/g) under typical test conditions. Most interestingly, the corresponding asymmetrical capacitors exhibited excellent electrochemical cycle stability, maintaining 77% of the original capacitance. NiMoO<sub>4</sub>@Ni(OH)<sub>2</sub> nanofibers were verified to be simple to prepare and to have good performances as energy−storage devices within this experiment.https://www.mdpi.com/2079-4991/12/22/4079Ni(OH)<sub>2</sub>NiMoO<sub>4</sub>nanofiberselectrospinningsupercapacitor |
| spellingShingle | Junzhu Li Xin Chang Xuejiao Zhou Mingyi Zhang Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric Supercapacitors Nanomaterials Ni(OH)<sub>2</sub> NiMoO<sub>4</sub> nanofibers electrospinning supercapacitor |
| title | Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric Supercapacitors |
| title_full | Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric Supercapacitors |
| title_fullStr | Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric Supercapacitors |
| title_full_unstemmed | Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric Supercapacitors |
| title_short | Design of Ni(OH)<sub>2</sub> Nanosheets@NiMoO<sub>4</sub> Nanofibers’ Hierarchical Structure for Asymmetric Supercapacitors |
| title_sort | design of ni oh sub 2 sub nanosheets nimoo sub 4 sub nanofibers hierarchical structure for asymmetric supercapacitors |
| topic | Ni(OH)<sub>2</sub> NiMoO<sub>4</sub> nanofibers electrospinning supercapacitor |
| url | https://www.mdpi.com/2079-4991/12/22/4079 |
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