电极表面状态对原电池影响的热力学分析

THERMODYNAMICAL ANALYSES OF EFFECTS OF THE SURFACE STATES OF ELECTRODS ON GALVANIC CELLS

１前言我们知道，超细微粒及其材料具有许多优异的物理化学性质［１～６］；这是因为随着物质分散度的增加，比表面积和表面能也相应增加，从而产生了强烈的表面效应，导致体系在分散状态时的物理化学性质与块状时相比发生了显著变化。我们知道，表面粗糙的金属容易发生电...

The surface states of electrods affect remarkably on the electromotive forces (EMF) of galvanic cells.The relation between the EMF and surfacial dispersities of the electrodes has been derived by using small cones as surface model of the electrodes.The results have indicated that the more coarse surface of reactant electrode or the smoother surface of product electrode,the larger the EMF.And the effects of surface states of electrodes on the heat of reaction,the equilibrium constant,the entropy for reaction and enthalpy for reaction of galvarnic cells have been discussed.