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3D MoxW1-xS2 composite material with different morphologies were controllably synthesized on Ni foam via a simple hydrothermal method for high performance supercapacitors.The structure and morphology of the as-prepared samples were characterized by X-ray power diffraction (XRD), field emission scanning electronic microscopy (FESEM) and transmission electron microscopy (TEM).The morphology and electrochemical performance of different MoxW1-xS2 samples can be changed by simply varying the Mo/W molar ratio in the hydrothermal process.With the increase of the W content, the morphology of the MoxW1-xS2 samples is changes from nanorods to nanowires and the diameter of which becomes smaller gradually.The specific capacitor first increases and then decreases with the Mo/W molar ratio decreases.When they are tested as supercapacitor electrodes, the specific capacitor first increases and then decreases and the cyclic stability was rised as the doping of W element.The as-prepared optimal Mo0.4W0.6S2 electrode with the Mo/W molar ratio of 1/1.5 has the excellent specific capacitor of 462 F/g and areal capacitance of 2310 mF/cm2 at a discharge current density of 1 A/g with the mass of 5 mg/cm2 and the capacitance is quite stable and remains 91% of the initial value after 1000 cycles.These results imply that the Mo0.4W0.6S2 composite material has a potential value in the application of real high-performance supercapacitors.