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Schematic illustration of the fabrication procedures for the vertically aligned Au/CNT- core-shell nanorods with the schematized electrochemical reaction involving the nanostructured Li battery electrode. (a) Porous AAO nanotemplate (pore diameter of ), (b) CNT formation via thermal CVD, (c) CNT exposure by ion milling and subsequent chemical etching, (d) carbon layer deposition by thermal CVD, (e) Au coating on CNTs array by sputtering, and (f) deposition of as the active material via sputtering.
Scanning electron microscopy images of (a) porous AAO nanotemplate with hexagonally patterned pore array, (b) vertically aligned CNT array, (c) Au-coated CNT core array, and (d) vertically aligned core-shell nanorod array.
Profiles of the capacity changes with respect to the C-rate increase from 3 to 10 C at 30th cycle; the discharge capacity values are normalized at each C-rate by the capacity value under 1 C conditions.
Discharge capacities normalized by mass of , unit volume of layer, and unit area of electrode.
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