What are the Challenges in Water Splitting Catalysis?
Despite the promise, several challenges exist: - Overpotential: Both OER and HER require overpotentials greater than the theoretical values, leading to energy losses. - Catalyst Stability: Catalysts must be stable under harsh electrochemical conditions. - Cost and Availability: Many effective catalysts, such as those based on platinum or iridium, are expensive and scarce.
