This Special Issue focuses on the latest advancements in electrocatalysis for sustainable fuel cell technologies. It highlights the crucial role of electrocatalysts in enhancing the performance and durability of fuel cells, which are pivotal for clean and efficient energy conversion. Key research areas covered include the development of novel catalysts for hydrogen oxidation and oxygen reduction reactions, as well as the optimization of catalyst structures and compositions to improve reaction kinetics and reduce costs. In addition, it underscores the role of electrocatalysis in achieving a sustainable future by facilitating the development of more efficient and environmentally friendly fuel cell systems, which are integral to global sustainability efforts (such as the UN’s SDGs) to combat climate change and promote sustainable development.

This Special Issue, titled “Advancements in Electrocatalysis for Sustainable Fuel Cell Technologies”, will cover recent experimental research and studies regarding the heterogeneous catalysis, electrocatalysis, and various energy-related applications such as fuel cells, metal–air batteries, etc. We also encourage the submission of manuscripts outlining theoretical studies, reviews of recent advances, and the prospects of electrocatalysis.