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Significant enhancement in electrochemical performances has been achieved in silicon nanotube bundles (Si NBs) via coating with graphene layers (denoted as Si NBs@G), which could be a promising anode material in Li-ions batteries. The synthesized Si NBs@G have tubular structure with a diameter of around 200nm and a thickness about 80nm and the tube walls are composed of Si nanocrystals with a size...
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