Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodes
Nickel and Nickel-cobalt [Ni1/3Co2/3(HL)2].3H2O Schiff base complexes were synthesized from 2-(methoxycarbonyl-hydrazono)-pentanedioic acid, H2L ligand with metal salts. The structural analysis reveals that the prepared samples were endowed with well crystalline nature. The electrodes of Nickel-coba...
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Elsevier
2025-04-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822824002363 |
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| author | S. Parveen A. Shanmugapriya B. Saravanakumar J.Johnson William N. Chithra |
| author_facet | S. Parveen A. Shanmugapriya B. Saravanakumar J.Johnson William N. Chithra |
| author_sort | S. Parveen |
| collection | DOAJ |
| description | Nickel and Nickel-cobalt [Ni1/3Co2/3(HL)2].3H2O Schiff base complexes were synthesized from 2-(methoxycarbonyl-hydrazono)-pentanedioic acid, H2L ligand with metal salts. The structural analysis reveals that the prepared samples were endowed with well crystalline nature. The electrodes of Nickel-cobalt Schiff base complex (Ni-Co) exhibits Faradaic peaks indicating the diffusion controlled charge transfer mechanism. As a supercapacitor electrode, the Ni-Co exhibits higher specific capacitance of 683 F g−1 at a current rate of 1 A g−1, which is higher than the Nickel complex. Further the bimetallic material possesses better cyclic stability and very less charge – transfer resistance. An asymmetric device was fabricated using Ni-Co complex as the positive electrode material and activated carbon as the negative electrode. The as fabricated device displays a specific capacitance of 239 F g−1 with energy density of 69 Wh kg−1 and power density of 1385 W kg−1. This device demonstrated preservation of 91 % of initial capacitance after 2000 cycles. These attractive features demonstrate Ni-Co complex is a better candidate for supercapacitor electrode applications. |
| format | Article |
| id | doaj-art-c0b7757da5ac4730b9b28ecda183fa67 |
| institution | OA Journals |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
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| series | Next Materials |
| spelling | doaj-art-c0b7757da5ac4730b9b28ecda183fa672025-08-20T02:19:23ZengElsevierNext Materials2949-82282025-04-01710033910.1016/j.nxmate.2024.100339Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodesS. Parveen0A. Shanmugapriya1B. Saravanakumar2J.Johnson William3N. Chithra4Bio Inspired Materials Lab, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore 642 003, IndiaDepartment of Chemistry, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore 642 003, IndiaBio Inspired Materials Lab, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore 642 003, India; Department of Physics, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore 642 003, India; Corresponding author at: Bio Inspired Materials Lab, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore 642 003, India.Department of Physics, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore 642 003, IndiaDepartment of Chemistry, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore 642 003, IndiaNickel and Nickel-cobalt [Ni1/3Co2/3(HL)2].3H2O Schiff base complexes were synthesized from 2-(methoxycarbonyl-hydrazono)-pentanedioic acid, H2L ligand with metal salts. The structural analysis reveals that the prepared samples were endowed with well crystalline nature. The electrodes of Nickel-cobalt Schiff base complex (Ni-Co) exhibits Faradaic peaks indicating the diffusion controlled charge transfer mechanism. As a supercapacitor electrode, the Ni-Co exhibits higher specific capacitance of 683 F g−1 at a current rate of 1 A g−1, which is higher than the Nickel complex. Further the bimetallic material possesses better cyclic stability and very less charge – transfer resistance. An asymmetric device was fabricated using Ni-Co complex as the positive electrode material and activated carbon as the negative electrode. The as fabricated device displays a specific capacitance of 239 F g−1 with energy density of 69 Wh kg−1 and power density of 1385 W kg−1. This device demonstrated preservation of 91 % of initial capacitance after 2000 cycles. These attractive features demonstrate Ni-Co complex is a better candidate for supercapacitor electrode applications.http://www.sciencedirect.com/science/article/pii/S2949822824002363SupercapacitorSchiff base complexEnergy storageAsymmetric device |
| spellingShingle | S. Parveen A. Shanmugapriya B. Saravanakumar J.Johnson William N. Chithra Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodes Next Materials Supercapacitor Schiff base complex Energy storage Asymmetric device |
| title | Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodes |
| title_full | Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodes |
| title_fullStr | Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodes |
| title_full_unstemmed | Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodes |
| title_short | Micrometer long bimetallic Nickel-cobalt schiff base MOF as supercapacitor electrodes |
| title_sort | micrometer long bimetallic nickel cobalt schiff base mof as supercapacitor electrodes |
| topic | Supercapacitor Schiff base complex Energy storage Asymmetric device |
| url | http://www.sciencedirect.com/science/article/pii/S2949822824002363 |
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