A perspective on two pathways of photocatalytic water splitting and their practical application systems. Issue 9 (15th February 2023)

• Record Type: Journal Article
• Authors: Ma, Yiwen; Lin, Lihua; Takata, Tsuyoshi; Hisatomi, Takashi; Domen, Kazunari
• Is Part Of: Physical chemistry chemical physics. Volume 25:Issue 9(2023)
• Page Start: 6586
• Page End: 6601
• Publication Date: 2023-02-15
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d2cp05427b
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : This perspective presents the state-of-the-art of photocatalytic overall water splitting and the challenges toward large-scale applications. Abstract : Photocatalytic water splitting has been widely studied as a means of converting solar energy into hydrogen as an ideal energy carrier in the future. Systems for photocatalytic water splitting can be divided into one-step excitation and two-step excitation processes. The former uses a single photocatalyst while the latter uses a pair of photocatalysts to separately generate hydrogen and oxygen. Significant progress has been made in each type of photocatalytic water splitting system in recent years, although improving the solar-to-hydrogen energy conversion efficiency and constructing practical technologies remain important tasks. This perspective summarizes recent advances in the field of photocatalytic overall water splitting, with a focus on the design of photocatalysts, co-catalysts and reaction systems. The associated challenges and potential approaches to practical solar hydrogen production via photocatalytic water splitting are also presented.