In-situ Grown of MoS 2 /RGO/MoS 2 @Mo Nanocomposite and Its supercapacitor Performance
| Autor: | Xiuzhen Qian, Chongjun Zhao, Peiwen Ju, Yuxiao Zhang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Supercapacitor
Materials science Nanocomposite General Chemical Engineering Composite number Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Chemical engineering X-ray photoelectron spectroscopy Transmission electron microscopy Electrode Electrochemistry Hydrothermal synthesis 0210 nano-technology Power density |
| Zdroj: | Electrochimica Acta. 219:693-700 |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2016.10.072 |
| Popis: | A unique MoS 2 /RGO/MoS 2 (MRMS) nanostructured composite is prepared on Mo net surface through an in-situ hydrothermal synthesis. During the synthesis process, Mo net serves as not only a support but also Mo source for the lower MoS 2 layer and reductant of GO. MRMS samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM). As-synthesized MoS 2 /RGO/MoS 2 @Modirectlyactedassupercapacitorelectrodewhichexhibitedexcellentelectrochemicalperformance(*): A high capacity of 1138.5 mF cm −2 at 20 mA cm −2 (455.3 F g −1 ), and a capacity retention of 98.8% after 4000 running times. A symmetric supercapacitor device consisting of two MRMS electrodes was assembled, which exhibited an energy density of 6.22 Wh kg −1 and power density of 1.87 kW kg −1 . |
| Databáze: | OpenAIRE |
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