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arXiv 1806.02491cond-mat.softcond-mat.stat-mech
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电荷调节和表面电容的一般理论

General theory of charge regulation and surface capacitance

Rudolf Podgornik

摘要:

一般化的平均场方法将推导出,将考虑到离子-离子以及离子-表面的非静电效应在平等的基础上,是基于在没有静电相互作用的情况下的体积和表面状态方程。这种方法将被应用到几个模型的特定的离子-表面非静电相互作用的差分电容的计算提供了热力学洞察差分电容的特性。由于表面吸附的离子的包装的考虑将被证明是更相关的,然后对离子的表面附近的散装包装约束,并设置在散装包装约束将成为相关的条件之前。

英文摘要:

A generalization of the mean-field approach will be derived that will take into account the ion-ion as well as ion-surface non-electrostatic effects on an equal footing, being based on the bulk and surface equations of state in the absence of electrostatic interactions. This approach will be applied to the calculation of the differential capacitance for several models of the specific ion-surface non-electrostatic interactions providing a thermodynamic insight into the characteristics of the differential capacitance. The packing considerations due to surface adsorbed ions will be shown to be more relevant then the bulk packing constraints for ions vicinal to the surface, and to set in prior to the conditions where the bulk packing constraints would become relevant.

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