In situ growth of ultrashort rice-like CuO nanorods supported on reduced graphene oxide nanosheets and their lithium storage performance
In situ growth of ultrashort rice-like CuO nanorods supported on reduced graphene oxide nanosheets and their lithium storage performance
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还原氧化石墨烯纳米片负载超短米状CuO纳米棒的原位生长及其储锂性能
DOI：
10.1007/s11581-016-1822-y
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发表时间：
2017-03
期刊：
影响因子：
2.8
通讯作者：
Hou Zhaohui
中科院分区：
文献类型：
--
作者：
Li Gangyong;He Binhong;Zhou Minjie;Wang Guoxiang;Zhou Ningbo;Xu Wenyuan;Jing Mingjun;Hou Zhaohui
采用水溶液中的简单共沉淀法制备了超短米粒状CuO纳米棒/还原氧化石墨烯（CuO-NRs/rGO）复合材料。高分辨透射电子显微镜的结果表明，所合成的米粒状CuO纳米棒具有均匀的尺寸，宽约8 nm，长约28 nm，并且均匀地分散在rGO纳米片上。CuO纳米棒被从GO还原的石墨烯纳米片均匀地分散和固定。所得CuO-NR/rGO复合物作为锂离子电池的负极材料显示出比纯CuO-NR和rGO纳米片更好的电化学性能。高的可逆容量和良好的稳定性可以归因于rGO纳米片的存在。
A facile refluxing strategy in aqueous solution was engaged to synthesize ultrashort rice-like CuO nanorods/reduced graphene oxide (CuO-NRs/rGO) composite. The result of the high-resolution transmission electron microscopy shows that the as-synthesized rice-like CuO nanorods have a uniform size of about 8 nm in width and 28 nm in length and are homogenously dispersed on rGO nanosheets. The CuO nanorods are uniformly dispersed and immobilized by the graphene nanosheets reduced from GO. The resultant CuO-NRs/rGO composite as anode material for lithium-ion batteries displays better electrochemical properties than those of pure CuO-NRs and rGO nanosheets. The high reversible capacity and good stability can be ascribed to the presence of rGO nanosheets.
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