Effects of TiO2 Nanoparticle Size on Solar-to-Hydrogen Efficiency in Photoelectrochemical Cells

التفاصيل البيبلوغرافية
العنوان: Effects of TiO2 Nanoparticle Size on Solar-to-Hydrogen Efficiency in Photoelectrochemical Cells
المؤلفون: Salimijazi, Farshid, Shirvanian, A P
المصدر: ECS Transactions; January 2017, Vol. 75 Issue: 50 p25-30, 6p
مستخلص: The photocatalytic splitting of water into oxygen and hydrogen using solar light is a promising clean and renewable source of hydrogen fuel. TiO2 is one of the most studied and promising photocatalysts. Nanoparticle sizes ranging from 100 nm down to 5 nm were tested using photoelectrochemical (PEC) measurements. The TiO2 powders were characterized using XRD to determine crystal phase. A 2-electrode system was utilized in order to measure solar to hydrogen efficiency (STH) related to whole cell efficiency in the alkaline aqueous electrolyte. The optimum particle size in term of STH efficiency was 30 nm. Also, it was revealed that choosing anatase phase of TiO2 powder would increase the STH efficiency.
قاعدة البيانات: Supplemental Index