Artificial Photosynthesis of Formic Acid Using Iron Doped TiO₂

Abstract:

Formic acid has attracted much of interest due to potential using in Direct-formic acid fuel cells. Photosynthesized formic can be used as the hydrogen carrier because it is liquid at standard temperature and pressure. It is much safer and easier for handling and storing than hydrogen. It can be directly fed to the fuel cell and not need to be reformed. In this paper formic acid was artificially photosynthesized in photocatalytical reactor using Iron ion doped TiO₂. Water was used as a hydrogen source. CO₂ was introduced using continuous bubbling. Highest formic acid yield was obtained at 600W visible light irradiation using 3g/L photocatalyst load and 5L/min CO₂ gas flow rate at continuous stirring. Resulted acid was characterized using UV-visible absorbance spectrophotometer and gas chromatography (GC).

• Periodical: Applied Mechanics and Materials (Volumes 479-480)
• Pages: 100-104
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.479-480.100
• Online since: December 2013
• Authors: Amir Abidov, Sung Jin Kim
• Keywords: Artificial Photosynthesis, CO₂ Reduction, Fe Doped TiO₂, Hydrocarbons, Hydrogen Storage

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