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In situ growth of urchin-like NiCo2S4 hexagonal pyramid microstructures on 3D graphene nickel foam for enhanced performance of supercapacitors
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Xiaoli Xia, Xianjun Beka, Lemu Girma Liu, Weihua |
| Copyright Year | 2016 |
| Abstract | Urchin-like NiCo2S4 hexagonal pyramid microstructures have been grown in situ on three dimensional (3D) graphene nickel foam (GNF) by two-step hydrothermal method, labeled as NCS-GNF. The presence of graphene between nickel cobalt sulphur (NCS) and nickel foam (NF) can effectively improve ion and charge transportation. As a binder-free electrode for supercapacitors, it exhibits an ultrahigh specific capacitance of 9.6 F cm−2 at 10 mA cm−2 with excellent rate performance and cycling stability at a mass loading of 5.8 mg cm−2, corresponding to a mass specific capacitance of about 1650 F g−1 at 1.7 A g−1. The excellent electrochemical performance of urchin-like NCS-GNF is attributed to its unique microstructure. This unique microstructure electrode material has a promising application for capacitors in future. |
| Starting Page | 9446 |
| Ending Page | 9452 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C5RA23859E |
| Volume Number | 6 |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/getauthorversionpdf/C5RA23859E |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
