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上文从电极[Electrode]和电位[Potential]的定义及之相关的基本概念出发,指出“电极电位”这个概念是电化发展早期,人们从金属/溶液两相界面间正确事实的错误认识中得出观念,这种观念混淆了单相体系中任意点的电位和两相之间电位差的概念。作者从电池电动势的构成、电动势的实际测定、电化热力学和单电极的电化学势的组合等方面,证实“电极电位”是两个电极界面间的两个金属/溶液界面上电位差的差[⊿(⊿φ)]。如作为实测电池的电动势,其中还包含了两种金属之间的接触电位差。当选用标准氢电极为参考点后,电动势可变成电位差(⊿φ)的形式,但和电位φ仍无等同性。鉴于上述原因,“电极电位”显然是错误概念,必须予以抛弃。
Starting from the definition of electrode and potential and related basic concept, we point out that the concept of “electrode potential” is the early stage of electrochemical development. From the misunderstanding of the correct fact between metal / solution two-phase interface Out of concept, this notion confuses the notion of potential at any point in a single-phase system with the potential difference between two phases. The authors confirm that the “electrode potential” is the difference in potential at the two metal / solution interfaces between the two electrode interfaces in terms of the composition of the battery electromotive force, the actual measurement of electromotive force, the combination of electrothermal thermodynamics and the electrochemical potential of a single electrode, etc. [ ⊿ (⊿φ)]. As measured as the emf of the battery, which also contains the contact potential difference between the two metals. Elected with standard hydrogen electrode as the reference point, the electromotive force can become the potential difference (⊿φ) form, but with the potential φ is still not equal. In view of the above, “electrode potential” is clearly a false concept and must be discarded.