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研究并对比了金属富勒烯Dy @C82 的主要异构体Dy @C82 (I)固体膜在有机溶剂乙腈及水溶液中的电化学性质 .在乙腈溶液中 ,Dy @C82 (I)膜的电化学行为不同于其溶于有机溶剂中的电化学行为 ,前两个还原峰与其对应的再氧化峰之间存在大的分裂 .但是 ,经过还原及再氧化后的Dy @C82 (I)膜却存在一对对称性很好的氧化及再还原峰 .解释为经过还原后的Dy @C82 (I)膜的结构有利于进一步氧化 ,而不需要结构重排 ;在水溶液中 ,Dy @C82 (I)膜的电化学行为不同于其在乙腈溶液中 ,却类似于其有机溶液在Pt电极上的电化学行为 ,出现了对称性很好的三对还原峰及一对氧化峰 .在水溶液中 ,Dy @ C82 (I)的前三价负离子及一价正离子是稳定的 .利用紫外 -可见 -近红外 (UV Vis NIR)光谱及扫描电镜 (SEM)等技术对膜的性质及表面形貌等进行了表征
The electrochemical properties of the Dy @ C82 (I) solid film, a major isomer of the metal fullerene Dy @ C82, were investigated and compared in acetonitrile and aqueous solutions of organic solvents. The chemical behavior is different from the electrochemical behavior in organic solvents, with the first two reduction peaks and their corresponding reoxidation peaks presenting a major split, but the reduced and reoxidized Dy @ C82 (I) membrane is present A pair of well-symmetric oxidation and re-reduction peaks was explained by the structure of the reduced Dy @ C82 (I) film favored further oxidation without the need for structural rearrangement; in aqueous solution, Dy @ C82 (I) The electrochemical behavior of the film is different from that of its solution in acetonitrile, but similar to the electrochemical behavior of its organic solution on the Pt electrode, there are three symmetrical reduction peaks and a pair of oxidation peaks. In aqueous solution, Dy The former trivalent anions and monovalent cations of @ C82 (I) are stable.The properties of the films and the surface topography of the films are characterized by UV-Vis NIR spectroscopy and scanning electron microscopy (SEM) Characterization