Abstract
A facile one-pot method was reported for the synthesis of a series of nickel selenide nanocrystalline grown in situ on nickel foam with a 3D framework via the use of mixed solution. Through adjustment of the composition of mixture solution, reaction temperature and reaction time, NiSe nano-dandelion arrays, Ni3Se2 with 3D pine branch-shape structure and nano-sized grass-like Ni0.95Se arrays were obtained. The process of the synthesis of nickel selenide nano-dandelion arrays has been proposed in this paper. This method provided a suitable nucleation and growth environment in a uniform and transparent solution reaction system. Moreover, the electrochemical properties of all the as-prepared nickel selenide have been studied. This study addresses a general technology to fabricate oriented nanostructured films of nickel-based chalcogenides on substrates and may give a way to construct nanostructures with different composition to optimize various properties.
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