| The rods serve as negative electrodes, or anodes, and the tube serves as a positive electrode, or cathode. |
| The materials that are useful for anodes must be good conductors and must not corrode too easily under oxidizing conditions. |
| Gaseous hydrogen and oxygen flow separately around either side of two electrolytic plates serving as anodes and cathodes. |
| The tank will be fitted with copper and ferrous anodes which are fed with an electrical current from a control panel. |
| The cartridge anodes are preferably plated with a mixed metal oxide such as iridium oxide and ruthenium oxide to catalytically improve the production of oxygen. |
| Lead anodes also have high resistance to corrosion by seawater, making them economical to use in systems for the cathodic protection of ships and offshore rigs. |
