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http://dx.doi.org/10.7836/kses.2014.34.6.011

Hydrogen Production with High Temperature Solar Heat Thermochemical Cycle using CeO2/ZrO2 Foam Device  

Lee, Jin-Gyu (Department of Mechanical Engineering, Inha University)
Seo, Tae-Beom (Department of Mechanical Engineering, Inha University)
Publication Information
Journal of the Korean Solar Energy Society / v.34, no.6, 2014 , pp. 11-18 More about this Journal
Abstract
Two-step water splitting thermochemical cycle with $CeO_2$ foam device was investigated by using a solar simulator composed of 2.5 kW Xe-Arc lamp and mirror reflector. The hydrogen production of $CeO_2$ foam device depending on reaction temperature of Thermal-Reduction step and Water-Decomposition step was analyzed, and the hydrogen production of $CeO_2$ and $NiFe_2O_4/ZrO_2$ foam devices was compared. As a result, the amount of reduced $CeO_2$ considerably varies according to the reaction temperature of Thermal-Reduction step. and hydrogen production was not much when the amount of reduced $CeO_2$ decreased even if the reaction temperature of Water-Decomposition step was high. Therefore, it is very important to keep the reaction temperature of Thermal-Reduction step high in two-step thermochemical cycle with $CeO_2$.
Keywords
Dish type solar thermal system; Two-step water splitting; Hydrogen production; Solar simulator; Porous foam device;
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