Synthesis and high-rate capability of quadrangular carbon nanotubes with one open end as anode materials for lithium-ion batteries
Synthesis and high-rate capability of quadrangular carbon nanotubes with one open end as anode materials for lithium-ion batteries
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一端开口四边形碳纳米管锂离子电池负极材料的合成及高倍率性能
DOI：
10.1039/b926576g
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发表时间：
2010-03
影响因子：
--
通讯作者：
Chen, Xiaohong
中科院分区：
文献类型：
--
作者：
Zhou, Jisheng;Song, Huaihe;Fu, Bocheng;Wu, Bin;Chen, Xiaohong
新型碳纳米管（CNTs）的大规模制备。通过扫描电子显微镜、透射电子显微镜、X射线衍射和拉曼光谱等测试手段对其形貌和结构进行了表征。结果表明，所制备的碳纳米管具有四边形的横截面，以及一个开放的端部和“人字形”的壁，因此这些新的碳纳米管被命名为q-CNTs。q-CNTs的独特形貌意味着在许多领域具有广泛的潜在应用，包括药物递送、导电和高强度复合材料、场发射显示器和辐射源、储氢介质和超级电容器。当用作锂离子电池的阳极材料时，q-CNT表现出优异的高倍率性能（在1000 mA g− 1的电流密度下，181 mAh g − 1的高可逆容量（约1000 mA））。3C）），这比常见的多壁碳纳米管高得多。这种高倍率性能应归因于q-CNT的独特纳米结构，其导致锂离子在q-CNT中的高扩散系数。
Novel carbon nanotubes (CNTs) were prepared on a large-scale. Their morphology and structure were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman measurements. It was found that the prepared CNTs possess a quadrangular cross section, as well as one open end and “herringbone”-like walls, so these novel CNTs were named q-CNTs. The unique morphology of q-CNTs implies broad potential applications in many fields, including drug delivery, conductive and high-strength composites, field emission displays and radiation sources, hydrogen storage media, and supercapacitors. When used as the anode materials for lithium-ion batteries, q-CNTs exhibit excellent high-rate performance (a high-reversible capacity of 181 mAh g−1 at the current density of 1000 mA g−1 (ca. 3 C)), which is much higher than that of the common multi-wall carbon nanotubes. This high-rate performance should be attributed to the unique nanostructure of q-CNTs, which results in a high diffusion coefficient for lithium ions in the q-CNTs.
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影响因子：
3.9
作者：
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通讯作者：
G. Wu;Chunsheng Wang;X. B. Zhang;Hangsheng Yang;Z. Qi;P. He;Wencheng Li
影响因子：
4
作者：
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通讯作者：
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影响因子：
6.6
作者：
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影响因子：
4.4
作者：
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通讯作者：
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影响因子：
10.9
作者：
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通讯作者：
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