Catalysts for Electrocatalytic Water Splitting

Water electrolysis or electrochemical water splitting is considered a promising technology for delivering a portable and sustainable energy source through hydrogen fuel. The crucial aspect for advancing toward industrial implementation rests in the utilization of cost-effective electrocatalysts with high efficiency. This book chapter provides a comprehensive overview of catalysts for electrochemical water splitting, emphasizing their importance, state-of-the-art advancements, challenges, and opportunities. Since catalysts play a critical role in facilitating efficient hydrogen production by improving reaction kinetics and selectivity, various catalyst types and their performance and stability evaluation are also explored. It highlights recent advancements in catalyst design, including nanostructuring and surface engineering. Challenges such as degradation, cost, and material availability are discussed, along with opportunities for innovation in earth-abundant catalysts and improved durability. This chapter aims to foster progress in catalyst design and development and inspire future research in electrolysis and electrochemical water splitting for sustainable hydrogen production.