Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor Performance
Nickel molybdate, which has a relatively high theoretical capacity, demonstrates potential for use in supercapacitors. However, its inferior electrical conductivity and cycling stability have led to poor electrochemical performance. Nanostructure engineering of NiMoO<sub>4</sub> is an ef...
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MDPI AG
2024-11-01
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| Online Access: | https://www.mdpi.com/2079-4991/14/22/1798 |
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| author | Yining Wang Yuhan Cui Yue Song Chen Zhou |
| author_facet | Yining Wang Yuhan Cui Yue Song Chen Zhou |
| author_sort | Yining Wang |
| collection | DOAJ |
| description | Nickel molybdate, which has a relatively high theoretical capacity, demonstrates potential for use in supercapacitors. However, its inferior electrical conductivity and cycling stability have led to poor electrochemical performance. Nanostructure engineering of NiMoO<sub>4</sub> is an efficient strategy to overcome its performance limitations as an electrode. Here, a facile approach is reported for the precise phase regulation and nanostructure of NiMoO<sub>4</sub> by manipulating the synthesis parameters, including duration, precursor selection, and urea concentration. The electrochemical properties of the electrode materials are also investigated. It is interesting to note that the β-NiMoO<sub>4</sub> nanosheets show a decent specific capacity of 332.8 C/g at 1 A/g, surpassing the 252.6 C/g of the α-NiMoO<sub>4</sub> nanorods. Furthermore, the supercapacitor device constructed with β-NiMoO<sub>4</sub> and reduced graphene oxide hydrogel (rGH) electrodes achieves an acceptable energy density of 36.1 Wh kg<sup>−1</sup>, while retaining 70.2% after 5000 cycles. |
| format | Article |
| id | doaj-art-1a208777024d4750b336efc79ce46d5f |
| institution | DOAJ |
| issn | 2079-4991 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj-art-1a208777024d4750b336efc79ce46d5f2025-08-20T02:48:07ZengMDPI AGNanomaterials2079-49912024-11-011422179810.3390/nano14221798Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor PerformanceYining Wang0Yuhan Cui1Yue Song2Chen Zhou3School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaJilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun 130022, ChinaNickel molybdate, which has a relatively high theoretical capacity, demonstrates potential for use in supercapacitors. However, its inferior electrical conductivity and cycling stability have led to poor electrochemical performance. Nanostructure engineering of NiMoO<sub>4</sub> is an efficient strategy to overcome its performance limitations as an electrode. Here, a facile approach is reported for the precise phase regulation and nanostructure of NiMoO<sub>4</sub> by manipulating the synthesis parameters, including duration, precursor selection, and urea concentration. The electrochemical properties of the electrode materials are also investigated. It is interesting to note that the β-NiMoO<sub>4</sub> nanosheets show a decent specific capacity of 332.8 C/g at 1 A/g, surpassing the 252.6 C/g of the α-NiMoO<sub>4</sub> nanorods. Furthermore, the supercapacitor device constructed with β-NiMoO<sub>4</sub> and reduced graphene oxide hydrogel (rGH) electrodes achieves an acceptable energy density of 36.1 Wh kg<sup>−1</sup>, while retaining 70.2% after 5000 cycles.https://www.mdpi.com/2079-4991/14/22/1798nickel molybdatesurface morphologyhybrid supercapacitorsbattery-type electrode |
| spellingShingle | Yining Wang Yuhan Cui Yue Song Chen Zhou Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor Performance Nanomaterials nickel molybdate surface morphology hybrid supercapacitors battery-type electrode |
| title | Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor Performance |
| title_full | Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor Performance |
| title_fullStr | Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor Performance |
| title_full_unstemmed | Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor Performance |
| title_short | Synergistic Regulation of Phase and Nanostructure of Nickel Molybdate for Enhanced Supercapacitor Performance |
| title_sort | synergistic regulation of phase and nanostructure of nickel molybdate for enhanced supercapacitor performance |
| topic | nickel molybdate surface morphology hybrid supercapacitors battery-type electrode |
| url | https://www.mdpi.com/2079-4991/14/22/1798 |
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