不同形貌碳纳米管的制备及其嵌锂性能研究  

Preparation and Electrochemical Lithium Intercalation Performance of Different Shaped Carbon Nanotube

作　　者：陈茂惠[1] 黄镇财[1] 吴国涛[1] 尤金跨[1] 林祖赓[1] 

机构地区：[1]厦门大学化学系,固体表面物理化学国家重点实验室,福建厦门361005

出　　处：《电化学》2002年第4期381-387,共7页Journal of Electrochemistry

基　　金：福建省自然科学基金 (E0 0 10 0 0 2 )资助项目

摘　　要：以乙炔作为反应气 ,用化学气相沉积法 (CVD)和模板法在不同温度 (60 0℃、70 0℃ )下制备了不同形貌的碳纳米管 ,并采用TEM ,HRTEM ,SEM ,XRD ,Raman和充放电实验方法研究其形貌、结构和电化学嵌锂性能 .结果表明 ,不同的制备方法及反应温度对碳纳米管的形貌、结构特征和电化学嵌锂性能均有明显的影响 .在制备的样品中 ,制备温度越低 ,样品的石墨化程度越差 。In the present work, different shaped carbon nanotubes were produced by the general CVD and the template method at different temperature (600 ℃,700 ℃) with the reaction gas of acetylene. The morphology, structure and the electrochemical lithium intercalation performance were comparatively studied and characterized by TEM, HRTEM, SEM, XRD, Raman techniques and Charge/Discharge Test. It was found that the different preparation methods and temperatures all had an obvious effect on these properties of carbon nanotubes. In our samples, with the increase of preparation temperature, the degree of crystallinity decreased, and the reversible specific capacity increased respectively.

关 键 词：形貌 制备 嵌锂性能 碳纳米管 化学气相沉积法 负极 模板法 嵌锂材料 锂离子电池 Ni-Mg-O催化剂 多孔Al2O3模板 

分 类 号：TM911[电气工程—电力电子与电力传动]