The hierarchical Cu nanosheets @ CuO nanorods nanostructures were fabricated by a facile hydrothermal approach using Cu nanosheets as self-template and nano-substrate in an aqueous solution of NaOH/H₂O₂. The hierarchical Cu nanosheets @ CuO nanorods electrodes show a high reversible capacity of 620mAh/g after 200 cycles, much higher than that of the pure CuO nanocrystals at a current 0.1C. The excellent electrochemical performance of the hierarchical Cu nanosheets @ CuO nanorods electrode can be attributed to the unique architecture, which not only provides appropriate spaces between nanorod arrays to accommodate the volume change during the discharge/charge process, but also enables fast charge transport owing to the reduced diffusion paths for electrons and induced the Cu nanosheet as the nano-substrates.

中文翻译：

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分级合成的Cu纳米片@ CuO纳米棒作为锂离子电池的高性能阳极材料的受控合成

通过使用Cu纳米片作为自模板和纳米底物在NaOH / H ₂ O ₂水溶液中的快速水热方法，制备了分层的Cu纳米片@CuO纳米棒纳米结构。。分层的Cu纳米片@CuO纳米棒电极在200次循环后显示出620mAh / g的高可逆容量，远高于电流为0.1C时纯CuO纳米晶体的可逆容量。分层Cu纳米片@ CuO纳米棒电极的出色电化学性能可归因于独特的结构，该结构不仅在纳米棒阵列之间提供了适当的空间以适应放电/充电过程中的体积变化，而且由于能够实现快速的电荷传输减少了电子的扩散路径，并诱导了铜纳米片作为纳米基质。