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Tomboc, Gracita M.; Kim, Hern
Journal of materials science. Materials in electronics, 05/2019, Letnik: 30, Številka: 10Journal Article
In this study, the NiMoO 4 -carbon nanotubes (NiMoO 4 -CNTs) nanocomposite with interesting vertical nanosheet architecture and hierarchical mesoporous surface was synthesized via a simple hydrothermal treatment, followed by annealing process. The NiMoO 4 nanoparticles were chemically tailored onto amine functionalized CNT through the reactive –NH 2 group available; this noble electrode design not only resulted to remarkably high specific surface area of 181.88 m 2 g −1 with numerous numbers of active sites, but also ensured outstanding mechanical and chemical stability that helped retained 91.93% capacity retention even after 5000 continuous cycles at fast scan rate. The fabricated NiMoO 4 -CNT electrode press deposited onto nickel foam substrate obtained specific capacitance of 611.69 F g −1 and 20.42 W h kg −1 energy density at 1 A g −1 current density. Furthermore, the annealing temperature was a critical factor during the synthesis of the modified material as it has direct effect on the structure and crystal phase, as well as to the amount of decomposed CNT; thus, the effect of using low and high annealing temperature towards the electrochemical activity of the modified material was extensively examined. The synthesized materials were investigated by using thermo gravimetric analysis, X-ray diffraction, field emission scanning electron micrographs equipped with energy dispersive X-ray spectrometer, and Brunauer–Emmett–Teller.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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