Oct. 27, 2021
As a Graphite Electrodes Manufacturer, share it with you. The main reason why
graphite electrodes are used for electrolysis is that graphite is an excellent
conductor. The structure of graphite allows it to have a large number of
electrons floating freely between different atomic layers (graphite bonds are
formed by only three of the four electron shells of carbon atoms, leaving the
fourth electron free to move). These electrons act as powerful conductors,
allowing the electrolysis process to proceed smoothly. In addition, graphite is
economical, stable at high temperatures, and wear-resistant. For all these
reasons, graphite electrodes are often used for electrolysis.
The atomic structure of graphite causes a large number of electrons to be unbound, allowing them to migrate between graphite layers. It is this large amount of free electrons (electron delocalization) that gives graphite excellent electrical conductivity. In addition to being a good conductor, graphite is also cheap, strong, and easy to obtain-which is all further reasons why it is widely used as an electrode.
Graphite rods are used as electrodes in electrolysis, because the structure of graphite makes it an excellent conductor. A large number of delocalized electrons allow current to pass through the graphite quickly. Graphite can also be directly formed into rods, which is a cost-effective and wear-resistant material.
Yes! Graphite has excellent electrical conductivity, coupled with its high melting point (making it suitable for various electrolysis reactions), low price and toughness mean that it is a good choice for electrolysis electrodes.
When using Graphite Electrodes, what happens to the solution during electrolysis?
Graphite enables positively charged ions (metal and hydrogen) to obtain electrons from negatively charged electrodes. Conversely, negatively charged ions lose electrons (oxidize).