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Hydrous nickel sulphide nanoparticle decorated 3D graphene foam electrodes for enhanced supercapacitive performance of an asymmetric device
| Content Provider | Semantic Scholar |
|---|---|
| Author | Patil, Umakant M. Katkar, Pranav K. Marje, Supriya J. Lokhande, Chandrakant D. Jun, Seong Chan |
| Copyright Year | 2018 |
| Abstract | Hydrous nickel sulphide is successfully synthesized on graphene foam (Ni9S8/GF) using a facile chemical bath deposition (CBD) method. The physico-chemical properties (XRD, RAMAN, FE-SEM and TEM) show that hydrous nanocrystalline Ni9S8 particles are uniformly distributed over the surface of multilayered graphene foam (MGF). The electrochemical capacitive measurement results reveal that the Ni9S8/GF 3D porous electrode exhibits high specific capacitance of 2055 F g−1 at 2 A g−1. Moreover, an asymmetric supercapacitor fabricated using the Ni9S8/GF electrode as the positive electrode and activated carbon (AC/NF) as a negative electrode shows a high energy density of 51.11 W h kg−1 at a power density of 2.66 kW kg−1. The enhanced capacitive performance of an ACS device can be attributed to the introduction of Ni9S8/GF, since 3D GF offers a porous structure with high specific surface area and continuous conducting structure, which possesses more active sites for charge storage and assists fast charge transport through the continuous 3D graphene structure. |
| Starting Page | 20123 |
| Ending Page | 20130 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c8nj04228d |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c8/nj/c8nj04228d/c8nj04228d1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/c8nj04228d |
| Volume Number | 42 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
