高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (1): 112.

• 论文 • 上一篇    下一篇

电极表面结构及有机添加物对C60电还原过程的影响

杨勇, 蒋奕松, 林祖赓   

  1. 厦门大学化学系, 厦门, 361005
  • 收稿日期:1996-01-11 出版日期:1997-01-24 发布日期:1997-01-24
  • 通讯作者: 杨勇. 男. 33岁, 博士, 副教授.
  • 作者简介:杨勇. 男. 33岁, 博士, 副教授.
  • 基金资助:

    国家自然科学基金

Influences of Electrode Surface Structure and Organic Additives on the Electroreduction of Fullerene

YANG Yong, JIANG Yi-Song, LIN Zu-Geng   

  1. State Key Lab.for Physical Chemistry of the Solid Surface, Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1996-01-11 Online:1997-01-24 Published:1997-01-24

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摘要： 研究了不同电极表面结构及有机添加剂对C60电化学还原过程的影响.实验结果表明,富勒烯及其阴离子的电还原活性取决于电极表面结构的影响,即:ipc(多晶)＞ipc[Pt(111)]＞ipc[Pt(110)],且在Pt(111)及Pt(110)晶面上C601-及C602-的还原电位均有一定的位移·另外,实验结果还表明当溶液中分别添加苯胺及邻氨基酚时,其对C60电还原过程的影响机理将有所不同.

关键词: C60, 单晶电极, 表面结构, 苯胺及其衍生物, C60-苯胺配合物

Abstract: The influences of electrode surface structure and organic additives such as aniline and o-aminophenol on the electroreduction of fullerene are investigated in this paper.It is found that the activity of electroreduction of fullerene and fulleride anions ls dependent on the electrode surface structure.The reduction current of fullerene at polycrystal electrode is higher than those at Pt (111) and Pt (110).Some negative shifts of reduction potential of C60- and C602- at Pt (111) and Pt (110) are observed.In addition, the effects of some organic additives, such as aniline and o-aminophenol on the reduction of fullerene are also investigat-ed.Different reduction mechanisms are proposed for these two systems, i.e.one is due to the formation of C60-aniline complex, the other is due to chemical reaction between C60 with o-aminophenol in the reduction process.

Key words: C60 Single-crystal electrodes, Surface structure, Aniline and derivatives, C60-aniline complex

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