| CoO填充多壁碳纳米管作为锂离子电池负极材料 |
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| 引用本文： | 叶茂,周震,卞锡奎,高学平,阎杰. CoO填充多壁碳纳米管作为锂离子电池负极材料[J]. 无机化学学报, 2006, 22(7): 1307-1311 |
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| 作者姓名： | 叶茂 周震 卞锡奎 高学平 阎杰 |
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| 作者单位： | 南开大学新能源材料化学研究所,天津,300071 |
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| 摘 要： | 碳纳米管自1990年被日本科学家Iijima发现以来[1],由于其独特的结构组成而具有良好的强度和弹性模量、高比表面积、良好的耐腐蚀性和导电性等特点受到了广泛的关注,并已在催化剂载体、纳米电子器件、储能材料、复合功能材料等诸多领域得到应用。多壁碳纳米管(MWCNT)是由多层石墨卷绕而成的同心圆筒,石墨层间距约为0.034nm,管径一般为几十纳米,管长可达数微米,因此多壁碳纳米管具有较高的长径比,可以被看作一维纳米线。由于多壁碳纳米管在管壁之间和管腔之中存在大量空间,为锂离子的嵌入提供了可能,因此近年来关于多壁碳纳米管储锂的研究…
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| 关 键 词： | 多壁碳纳米管； CoO； 锂离子电池； 负极材料 |
| 文章编号： | 1001-4861(2006)07-1307-05 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-04-17 |
CoO-filled Carbon Nanotubes as Insertion Anode Material for Lithium Batteries |
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| YE Mao,ZHOU Zhen,BIAN Xi-Kui,GAO Xue-Ping and YAN Jie. CoO-filled Carbon Nanotubes as Insertion Anode Material for Lithium Batteries[J]. Chinese Journal of Inorganic Chemistry, 2006, 22(7): 1307-1311 |
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| Authors: | YE Mao ZHOU Zhen BIAN Xi-Kui GAO Xue-Ping YAN Jie |
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| Affiliation: | Institute of New Energy & Material Chemistry, Nankai University, Tianjin 300071,Institute of New Energy & Material Chemistry, Nankai University, Tianjin 300071,Institute of New Energy & Material Chemistry, Nankai University, Tianjin 300071,Institute of New Energy & Material Chemistry, Nankai University, Tianjin 300071 and Institute of New Energy & Material Chemistry, Nankai University, Tianjin 300071 |
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| Abstract: | The electrochemical performance of CoO-filled multi-walled carbon nanotubes(MWCNTs) is described. MWCNTs were purified, opened and filled with cobalt salt in one-step by wet-chemistry route. Followed by calcinations in Ar atmosphere, the salt filled in the MWCNTs decomposed to CoO subsequently. Structural characterization of the composite material by X-ray diffraction and transmission electron microscopy showed that MWCNTs were filled by discrete nano-size CoO. Compared to the MWCNTs purified by HNO3, the CoO-filled MWCNTs exhibited higher capacity and better cyclability during galvanastatic charge-discharge cycling and cyclic voltammetry (CV) tests. |
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| Keywords: | MWCNTs CoO lithium-ion batteries anode materials |
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