Sacrificial hydrogen production over TiO2-based photocatalysts: Polyols, carboxylic acids, and saccharides. (January 2018)

• Record Type: Journal Article
• Authors: Yasuda, Masahide; Matsumoto, Tomoko; Yamashita, Toshiaki
• Is Part Of: Renewable & sustainable energy reviews. Volume 81:Part 2(2018)
• Page Start: 1627
• Page End: 1635
• Publication Date: 2018-01
• Subjects: PR photo-reforming -- SA saccharification -- SSF simultaneous saccharification and fermentation -- LMAA low-moisture anhydrous ammonia pretreatment; Hydrogen evolution -- Pt/TiO2 -- Polyols -- Carboxylic acids -- Saccharides -- Chemical yields -- Quantum yields; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.rser.2017.05.243
• Languages: English
• ISSNs: 1364-0321

Abstract

Abstract: Photocatalytic generation of H2 from water over titanium dioxide (TiO2 ) has received a great deal of interest for developing a renewable and clean energy source. It is initiated by charge-separation in TiO2 upon photoexcitation. The electron reduces water to generate H2 while the hole oxidizes hydroxide to generate hydroxyl radicals. However, water-splitting into O2 and H2 is not easy because of the large up-hill reaction and rapid reverse reaction. It is well known that the use of electron-donating sacrificial agents (hole scavengers) remarkably accelerates TiO2 -photocatalyzed H2 evolution in which the hydroxyl radical is consumed by the sacrificial agents. Thus, sacrificial H2 production over a TiO2 photocatalyst is a convenient method to generate H2 from biomass and waste. This paper reviews the sacrificial H2 production from polyols, carboxylic acids, and saccharides, focusing on the chemical yield of H2 production.