Why do we use platinum as an electrode instead of graphite electrode?
Platinum electrodes and graphite electrodes are two common types of electrodes we see in our lives. Although both electrodes have their own advantages and disadvantages in use, platinum anode have more advantages than graphite electrodes.This article will discuss the benefits of platinum electrodes compared to graphite electrodes from various aspects such as their use range, conductivity and corrosion resistance, as well the processing technology..
1. Wide range of use
Platinum electrode can be widely used in chemical analysis, electrolyte, electrodeposition, electroreduction and many other fields. Its application range is much wider than that of graphite electrodes. Platinized titanium anode are usually used in relatively weak electrochemical reactions. They have excellent stability and consistency over a large potential range. This makes the platinum anode has been widely used.
2, excellent electrical conductivity
Platinum is a precious metal with very good electrical conductivity. In contrast, the conductivity of graphite electrodes is far inferior to that of platinum electrodes. The electrical conductivity of platinum electrodes is not only its performance in electrochemical reactions, but also reflected in the platinum coated titanium anode as a connecting device. The high electrical conductivity of platinum electrodes can quickly transfer current and ensure the operational stability of the electrode system.
3, strong corrosion resistance
Graphite electrodes cannot avoid erosion and thus degradation in corrosive liquids. While platinum coated titanium electrodes is a highly corrosion-resistant metal with good corrosion and oxidation resistance, and can be used in corrosive liquids for a long time without degradation. The corrosion resistance of platinized titanium anode is much higher than that of graphite electrode, so it is more suitable for some extremely acidic and alkaline environment.
4, the processing technology is fine
The processing process of platinized titanium anode is more delicate than graphite electrode, which also reflects the high quality of platinum electrode material itself. The surface finish of platinum electrode after processing is much higher than that of graphite electrode. During the electrochemical reaction, the surface of the platinum electrode has less contamination and organic residue, which has less influence on the reaction process.
In short, compared with graphite electrodes, platinum electrodes have a wide range of use, excellent electrical conductivity, corrosion resistance, fine processing and many other advantages. In actual use, platinum electrodes can complete the electrochemical reaction more effectively, improve the reaction efficiency, and ensure the accuracy and stability of the reaction. Therefore, when choosing electrode materials, platinum electrodes are also a more excellent choice.
