Chapter 2: Perovskite-based Photocatalysts for Hydrogen Production

The utilization of chemical reactions that imitate photosynthesis holds promise for tackling the escalating energy crisis and the deteriorating conditions of the environment. Perovskite-based photocatalysts have attracted attention in the field of solar-driven hydrogen production due to their appropriate band structure, exceptional optoelectronic capabilities, and reliable stability. The perovskite materials possess an outstanding ability to respond to visible light, making them highly sought after as semiconductor photocatalysts for water splitting reactions and hydrogen production. The chapter begins with a concise summary of the advantages of perovskites in the context of hydrogen production, as well as an explanation of the fundamental concepts underlying the photocatalytic reactions. Further, the chapter highlights the synthesis methodologies employed to design highly effective perovskites, particularly metal oxides, by the implementation of diverse approaches, such as structural engineering and surface modification. These techniques aim to provide exceptional reactivity and practical applicability for photocatalytic H₂ production. In addition, the chapter examines the challenges and potential future developments of materials based on perovskite, as well as the methods used to enhance their performance.