Electrochemical Quartz Crystal Microbalance

电化学反应是引起电流转移或伴随电流转移的反应，通常涉及两种物质之间的电子转移，即电流转移；一种物质是固体，另一种物质是液体。电化学反应通常是两种不同类型反应的组合；一种是产生电子的氧化反应，另一种是消耗电子的阴极反应。氧化反应发生在阳极电极上，还原反应发生在阴极电极上。通常将感兴趣的反应的电极称为工作电极，而将另一个电极称为对电极。电化学反应的例子有铜等金属的电沉积、钢的腐蚀等矿物和金属的电溶解以及胶合作用(即通过牺牲锌等不太贵重的金属来沉淀金等较贵重的金属)。

Electrochemical reactions are those reactions either caused or accompanied by the transfer of an electric current and most often involve the transfer of electrons, i.e. electrical current, between two substances; one a solid and the other a liquid. An electrochemical reaction usually is the combination of two different types of reactions; one an oxidation reaction which produces electrons and one a cathodic reaction that consumes the electrons. The oxidation reactions occur on an anode electrode and the reduction reactions occur on a cathodic electrode. The electrode of the reaction of interest is usually refereed to as the working electrode and the other electrode is refereed to as the counter electrode. Examples of the electrochemical reactions are electro-deposition of metals such as copper, electro-dissolution of minerals and metals such as corrosion of steel, and cementation (i.e. precipitation of a more noble metal such as gold by sacrificing a less noble metal such as zinc).