What are the Challenges in Catalytic Water Splitting?
Despite its potential, several challenges hinder the widespread adoption of catalytic water splitting:
- Efficiency: Achieving high efficiency in both OER and HER remains a significant challenge. Many catalysts exhibit good activity for one reaction but not the other, making it difficult to find a single catalyst that performs well overall.
- Stability: Catalysts often degrade over time, especially under harsh reaction conditions. Developing stable catalysts that can sustain long-term operation is crucial.
- Cost: Many effective catalysts, such as those based on platinum, iridium, and ruthenium, are expensive and scarce. Finding cost-effective alternatives is essential for large-scale implementation.
