THE DIFFUSE LAYER CORRECTION TO THE DISCRETE-ION EFFECT IN ELECTRIC DOUBLE LAYER THEORY
THE DIFFUSE LAYER CORRECTION TO THE DISCRETE-ION EFFECT IN ELECTRIC DOUBLE LAYER THEORY
复制标题
电双层理论中离散离子效应的扩散层修正
DOI：
10.1139/v65-394
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发表时间：
1965
影响因子：
1.1
通讯作者：
G. M. Bell
中科院分区：
文献类型：
--
作者：
S. Levine;J. Mingins;G. M. Bell
研究了扩散层对反离子从水溶液中吸附到平面带电界面上的自气（或离散离子）电位的屏蔽作用。提出了一种基于傅里叶-贝塞尔积分和Loeb和Williams近似方法处理扩散层电位分布的理论。在平面上吸附的特定离子周围的吸附平面上的反离子分布用二维大正则系综表示，这是由“修正截止模型”近似表示的。“格雷厄姆截止模型”是基于典型系综的吸附反离子分布的近似值，我们提出的论据表明这种解释是不正确的。我们还发现，修正圆盘的半径一般小于格雷厄姆圆盘的半径，但在斯特恩内区反离子的大电荷密度（σβ）下，修正圆盘的半径接近于格雷厄姆圆盘。与另一种方法进行了比较……
The screening effect of the diffuse layer on the self-atmosphere (or discrete-ion) potential of a counter-ion adsorbed from aqueous electrolyte on to a plane charged interface is investigated. A theory based on Fourier–Bessel integrals and the approximate method of Loeb and Williams for treating the potential distribution in the diffuse layer is presented. The distribution of counter-ions in the adsorption plane surrounding a specified ion adsorbed in the plane is expressed in terms of a two-dimensional grand canonical ensemble and this is approximated by a 'revised cut-off model'. The 'Grahame cut-off model' is an approximation to the adsorbed counter-ion distribution based on a canonical ensemble and we present arguments to show that this interpretation is incorrect. We also show that the radius of the revised disc is, in general, smaller than that of the Grahame disc but approaches it at large charge densities (σβ) of counter-ions in the Stern inner region. Comparison is made with an alternative approa...