What's next for applications of perovskite-based photocatalysis systems in hydrogen production from photocatalytic water splitting?
Journal
Coordination Chemistry Reviews
Journal Volume
564
Start Page
218078
ISSN
00108545
Date Issued
2026-10-01
Author(s)
Luu-Dang, Dinh-Tu
Huynh, Kiet Tuan
Ly, Pho-Phuong
Do, Minh-Hieu Thi
Nguyen, Quoc-Thiet
Vuong, Hoai-Thanh
Huynh, Ky Phuong Ha
Dang, Van-Han
Abstract
The swift exhaustion of fossil fuels and urgent requirements to diminish carbon emissions have expedited the advancement of sustainable energy conversion technologies, with hydrogen gas emerging as a promising clean energy carrier. Perovskite-based photocatalytic water splitting has emerged as a prospective pathway for solar-to-hydrogen energy conversion; however, its practical implementation remains constrained by both fundamental and system-level limitations. This review provides a comprehensive and structural analysis of the overall water-splitting process of perovskite photocatalysts, integrating reaction thermodynamics, kinetics, and mechanistic pathways with key performance metrics including apparent quantum yield and solar-to-hydrogen conversion. Particular emphasis is placed on elucidating the correlation between the physicochemical properties of perovskites and their photocatalytic behaviors, encompassing crystal structure, electronic and optical characteristics, and microstructural features. Advanced material design strategies are systematically evaluated – including bandgap engineering, cocatalyst, morphology modification, nanocomposite strategies, plasmonic enhancement, and heterojunctions designs - highlighting their underlying mechanisms, advantages, and intrinsic limitations. Beyond material-level optimization, this work further extends the discussion to system-level design, covering photoreactor configuration, light management, mass and heat transfer, catalyst immobilization, operational safety, and hydrogen separation strategies. Importantly, techno-economic considerations and hybrid photo-electrochemical pathways are critically assessed as viable routes toward large-scale implementation. By bridging material design with reactor engineering and process integration, this review establishes a unified framework linking structure, charge-carrier dynamics, overall system performance, along with outlining practical pathways toward efficient, stable, and scalable solar-hydrogen production based on perovskite photocatalysts.
Subjects
Challenges and perspectives
Hydrogen production
Perovskite materials
Photocatalytic systems (PCs)
Scalability and H2 extraction
Solar-driven water splitting
Publisher
Elsevier B.V.
Type
review article