Preparation of micrometer sized tubes by combining electrospinning technique and electroless plating method and their application to energy storage devices

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Micrometer-or nanometer-sized metal or metal oxide hollow fibers were prepared by combination of electrospinning technique and electroless plating method. The electrospun fibers with electroless-plating catalyst(palladium chloride) were dipping into the electroless plating bath and then the resulted fibers were heated at 400? 500°C in the air or were dipped into the organic solvent to remove the core fibers. The procedure provided various hollow fibers, nickel-phosphor alloy, nickel oxide, copper, copper oxide, bismuth, bismuth oxide, and zinc oxide. The size of the electrospun fibers affects the inner size of the hollow fibers prepared in this investigation.