SURFACE-TOPOGRAPHY AND IMPEDANCE OF METAL-ELECTROLYTE INTERFACES
SURFACE-TOPOGRAPHY AND IMPEDANCE OF METAL-ELECTROLYTE INTERFACES
复制标题
DOI：
10.1103/physrevlett.60.627
复制
发表时间：
1988-02-15
影响因子：
8.6
通讯作者：
STRIBLING, WT
中科院分区：
文献类型：
--
作者：
BATES, JB;CHU, YT;STRIBLING, WT
具有“阻断”电极的化学电池的小信号阻抗在低频（f<100 Hz）由金属-电解质界面的阻抗控制，其精确地表示为Z i= A（jω）− n。频率指数n（n< 1）对界面的纹理很敏感，最近提出了几种理论，将n与粗糙界面的分形维数d联系起来。我们没有发现n和d之间的相关性，从实验中使用水溶液电解质和金属和半导体电极。
The small-signal impedance of chemical cells with ‘‘blocking’’electrodes is dominated at low frequencies (f<∼ 100 Hz) by the impedance of the metal-electrolyte interfaces which is accurately represented by Z i= A (jω)− n. The frequency exponent n, n< 1, is sensitive to the texture of the interface, and several recent theories have been proposed that relate n with the fractal dimension d of the rough interface. We find no correlation between n and d from experiments using aqueous electrolytes and metal and semiconductor electrodes.