【摘要】 通过简单、环保的方法成功制备了多孔CuO/GO纳米片。在该合成体系中,首先由碱性溶液中GO和Cu2+的静电作用生成Cu(OH)2/GO复合沉淀,经脱水制得多孔CuO纳米片。利用XRD、SEM、TEM等技术对多孔CuO/GO纳米片的结构及电化学性能进行表征,该复合纳米片表现出高可逆容量,优良的倍率容量和循环稳定性。结果表明:引入氧化石墨烯和合成多孔纳米结构相结合的制备方法,能实现优良的电化学性能,对于下一代高性能锂离子电池具有很好的应用前景。更多还原

【Abstract】 Porous CuO/GO nanosheets have been synthesized via a facile and environmentally benign approach. In this synthetic system, Cu（OH）₂/GO nanocomposites precursors were produced first for electrostatic interaction between GO and Cu2+ in a alkaline solution, and then porous CuO nanosheets were obtained from dehydration of the Cu（OH）₂ precursor. The structure and electrochemical performance of this porous CuO/GO nanosheet was fully characterized by various techniques, such as XRD, SEM, and TEM. Fortunately, as anode materials for lithium-ion batteries, the Cu O/GO nanocomposites electrodes deliver relatively high reversible capacity, excellent rate capacity and cycle stability. These results suggest that the facile synthetic method of combining introduction of GO and preparation of porous nanostructures can realize excellent electrochemical properties, which is promising for next-generation high-performance lithium-ion batteries.更多还原