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首页> 外文期刊>Electrochimica Acta >The synthesis, characterization and electrochemical properties of Multi-Wall Carbon Nanotube-induced vanadium oxide nanosheet composite as a novel cathode material for lithium ion batteries
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The synthesis, characterization and electrochemical properties of Multi-Wall Carbon Nanotube-induced vanadium oxide nanosheet composite as a novel cathode material for lithium ion batteries

机译：多壁碳纳米管诱导的氧化钒纳米片复合材料的合成，表征及电化学性能

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摘要

In this paper, MWCNT (Multi-Wall Carbon Nanotube)-induced vanadium oxide nanosheet composite is synthesized via sol-gel method and subsequent hydrothermal treatment process. TEM and SEM tests confirmed that the synthesized product shows a rectangular sheet-like nanostructure with the length of several micrometers, width of a few hundred nanometers and thickness of dozens of nanometers. The analysis of XRD verified the monoclinic crystal structure of the vanadium oxide nanosheet. The XPS results manifested that V~(4+) is predominant in the V element of vanadium oxide nanosheet. The corresponding electrochemical performance examinations indicated this nanosheet-MWCNT composite with distinct single phase transition feature exhibits high specific capacity and good cycling stability due to its sheet-like nanostructure and uniform adding of MWCNTs, which makes this novel vanadium oxide nanosheet-MWCNT composite quite suitable and promising as cathode material for Li~+ ion batteries applications.
机译：本文通过溶胶-凝胶法和随后的水热处理工艺合成了多壁碳纳米管（MWCNT）诱导的氧化钒纳米片复合材料。 TEM和SEM测试证实合成产物显示出矩形片状纳米结构，其长度为几微米，宽度为几百纳米，厚度为几十纳米。 XRD分析证实了钒氧化物纳米片的单斜晶体结构。 XPS结果表明，V〜（4+）在钒氧化物纳米片的V元素中占主导地位。相应的电化学性能检查表明，这种具有独特的单相转变特征的纳米片-MWCNT复合材料由于其片状纳米结构和均匀添加的MWCNT而具有高比容量和良好的循环稳定性，这使得该新型氧化钒纳米片-MWCNT复合材料非常适合并有望用作锂离子电池的正极材料。

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