Electrolysis

Electrolysis and electroplating are two related processes in electrochemistry that are widely used in metal processing and surface technology. Electrolysis refers to the process of chemical decomposition of a substance by applying an electrical voltage. In electroplating, also known as electrochemical deposition, metal layers are deposited on surfaces in order to protect or refine them.

During electrolysis, an electrical voltage is passed through an electrolyte solution, causing ions to split into positively charged cations and negatively charged anions. The chemical reaction then takes place at the electrodes, whereby the ions either combine to form new molecules or are deposited as elements at the electrodes.

In electroplating, this electrolytic process is used to apply a metallic coating to a workpiece. The workpiece acts as the cathode, while the anode consists of the metal that is to be deposited. By applying an electrical voltage, the metal is transferred to the workpiece in dissolved form and forms an even layer.

These electrochemical processes are used in industry for the production of decorative coatings, protective coatings and also for the electrolysis of water to produce hydrogen and oxygen. Electroplating and electrolysis therefore make a decisive contribution to the manufacture of products with improved material properties and surface finishes.