The interface between Au(100) and 1-butyl-3-methyl-imidazolium-hexafluorophosphate
The interface between Au(100) and 1-butyl-3-methyl-imidazolium-hexafluorophosphate
复制标题
DOI：
10.1039/c1cp20562e
复制
发表时间：
2011-01-01
影响因子：
3.3
通讯作者：
Kolb, D. M.
中科院分区：
文献类型：
--
作者：
Gnahm, M.;Mueller, C.;Kolb, D. M.
采用循环伏安法、电化学阻抗谱和原位STM对Au（100）与1-丁基-3-甲基咪唑六氟磷酸盐的电化学界面进行了表征，特别是在两个不同的电位范围内。在总电荷为零的电势附近-其值已通过浸没实验确定-双层的充电相当慢，看起来好像包含离子液体的离子将在表面处缓慢地彼此交换。在另一个非常负的区域中，已通过STM观察到阳离子的有序化。
The electrochemical interface of Au(100) and 1-butyl-3-methyl-imidazolium hexafluorophosphate has been characterized by cyclic voltammetry, electrochemical impedance spectroscopy and in situ STM, especially in two distinct potential ranges. In the vicinity of the potential of zero total charge-the value of which has been determined by immersion experiments-charging of the double layer is rather slow, it appears as if the ions comprising the ionic liquid would slowly exchange each other at the surface. In the other, very negative region the ordering of the cations has been observed by STM.