| 金属富勒烯[Dy@C82]膜的电化学性质研究 |
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| 引用本文： | 范楼珍,吴月芹,杨世和.金属富勒烯[Dy@C82]膜的电化学性质研究[J].科技导报(北京),2004(10):28-34. |
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| 作者姓名： | 范楼珍 吴月芹 杨世和 |
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| 作者单位： | [1]北京师范大学化学系，北京100875 [2]香港科技大学化学系，香港九龙 |
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| 基金项目： | 本工作得到香港UGC的资助(RGC). |
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| 摘 要： | 系统报道了金属富勒烯Dy@C82固体膜在有机溶剂及水溶液中，以及Dy@C82嵌入DDAB(Didodecyl Dimethyl Ammonium Bromide)中形成的Dy@C82／DDAB膜在水溶液中的电化学性质。研究表明，Dy@C82的前三价负离子及一价正离子在水溶液中是稳定的。Dy@C82／DDAB膜在水溶液中的电化学性质类似于溶于有机溶剂中的Dy@C82出现了对称性很好的3对还原峰及1对氧化峰。由于与DDAB的体积较大的阳离子形成离子对，膜中Dy@C82的-1到-3价离子在水溶液中对氧气很稳定。还利用紫外—可见—近红外光谱、扫描电镜及石英晶体徽天平(EQCM)等技术对膜的性质、表面形貌及反应机理等进行了研究。
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| 关 键 词： | 金属富勒烯 Dy@C82膜 电化学性质 碳纳米材料 有机溶剂 |
| 文章编号： | 1000-7857(2004)10-0028-07 |
| 修稿时间： | 2004年7月29日 |
ELECTROCHEMISTRY OF METALLOFULLERENE [Dy@C82] FILMS |
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| FAN Lou-zhen,WU Yue-qin,YANG Shi-he.ELECTROCHEMISTRY OF METALLOFULLERENE [Dy@C82] FILMS[J].Science & Technology Review,2004(10):28-34. |
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| Authors: | FAN Lou-zhen WU Yue-qin YANG Shi-he |
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| Institution: | FAN Lou-zhen1 WU Yue-qin1 YANG Shi-he2 |
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| Abstract: | Electrochemical properties of bare Dy@C82 films in organic and aqueous solutions as well as Dy@C82/DDAB(Didodecyl Dimethyl Ammonium Bromide) films in aqueous solutions are reported.Dy@C82-, Dy@C822-, Dy@C823- and Dy@C82+ are found to be stable in water. The Dy@C82/DDAB films in aqueous solutions share similar electrochemistry to that of Dy@C82 dissolved in organic solution with the first three reversible reduction/reoxidation and the first reversible oxidation/rereduction waves. Because the bulky DDA+ cations can always balance the negative charges of the reduced Dy@C82, Dy@C82-, Dy@C822- or Dy@C823- are stable against O2 in the DDAB films. The characteristics and the underlying mechanisms of these films have also been uncovered by UV-Vis-Nir spectra, scanning electron microscopy (SEM) and electrochemical quartz crystal microbalance (EQCM). |
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| Keywords: | Metallofullerenes Dy@C82films Electrochemistry |
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