2. 电动序（Electrochemical series）

摘要：Electrochemical series also sometimes referred to as activity series is a list that describes the arrangement of elements in order of their increasing electrode potential values. The series has been established by measuring the potential of various electrodes versus standard hydrogen electrode (SHE).

[K vs. H]

What is the standard hydrogen electrode?

[Cu-Zn]

Do you remember the Cu-Zn galvanic cell?

Hg-Pt

What happens when Hg meets Pb?

3. E-pH图

摘要：In electrochemistry, a Pourbaix diagram, also known as potential/pH diagram, depicts possible equilibrium phases of an aqueous electrochemical system. The lines in the Pourbaix diagram describe the state of equilibrium for the different species on either side of the line.

布拜图（Pourbaix diagram），又称为电位-pH图，是以电位（平衡电极电位，相对于标准氢电极）为纵坐标，以pH为横坐标的电化学平衡图，其给出了反应的平衡电极电位与pH关系。根据布拜图可以直接判断在给定条件下（给定电位和pH）反应进行的可能性。

E-pH part 1

E-pH part 2

E-pH part 3

E-pH part 4