Journal
ELECTROCHIMICA ACTA
Volume 219, Issue -, Pages 693-700Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.10.072
Keywords
MoS2/RGO/MoS2; Supercapacitor; Mo net; Graphene Oxide(GO); Hydrothermal
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Funding
- National Natural Science Foundation of China [20504026]
- Shanghai Natural Science Foundation [13ZR1411900]
- Shanghai Leading Academic Discipline Project [B502]
- Shanghai Key Laboratory Project [08DZ2230500]
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A unique MoS2/RGO/MoS2 (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 MoS2 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 MoS2/RGO/MoS2@Modirectlyac-tedassupercapacitorelectrodewhichexhibitedexcellentelectrochemicalperformance(*): A high capacity of 1138.5 mF cm(-2) at 20 mA cm(-2) (455.3 Fg(-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). (C) 2016 Elsevier Ltd. All rights reserved.
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