| electrode → MadeOf → platinum | 0.43 | |
| electrode → MadeOf → alloy | 0.40 | |
| electrode → MadeOf → iridium | 0.36 | |
| electrode → MadeOf → stainless steel | 0.34 | |
| electrode → MadeOf → tantalum | 0.32 | |
| electrode → MadeOf → gold | 0.29 | |
| electrode → MadeOf → compound | 0.25 | |
| electrode → MadeOf → titanium nitride | 0.25 |