Best catalytic materials for water splitting for green hydrogen

There are several catalytic materials that are commonly used for water splitting to produce green hydrogen gas, including:

1. Platinum: Platinum is a highly effective catalyst for water splitting, but it is also very expensive, which limits its widespread use.

2. Iridium: Iridium is a less expensive alternative to platinum and is also effective at catalyzing the reaction.

3. Nickel: Nickel is a relatively inexpensive catalyst that is effective at catalyzing the water splitting reaction, but it tends to deactivate quickly and may require frequent replacement.

4. Cobalt: Cobalt is a relatively inexpensive catalyst that is effective at catalyzing the water splitting reaction, but it tends to deactivate quickly and may require frequent replacement.

5. Iron: Iron is an inexpensive catalyst that is effective at catalyzing the water splitting reaction, but it tends to deactivate quickly and may require frequent replacement.

6. Nickel-Iron: Nickel-Iron alloys are relatively inexpensive catalysts that are effective at catalyzing the water splitting reaction and tend to be more stable than pure iron or nickel catalysts.

7. Nickel-Molybdenum: Nickel-Molybdenum alloys are relatively inexpensive catalysts that are effective at catalyzing the water splitting reaction and tend to be more stable than pure nickel or molybdenum catalysts.

Overall, the choice of catalytic material will depend on the specific requirements of the water splitting system, including cost, efficiency, and durability.