Keene, Daniel; Lipinski, Wojciech; Davidson, Jane
A numerical heat and mass transfer model is used to study the effects of the morphological features of a porous medium composed of ceria when it is placed in a cavity and exposed to high-flux solar irradiation to drive a nonstoichiometric reduction. The morphological features are described by the porosity and pore-level Sauter mean diameter. For porosities of 0.60, 0.75, and 0.90, the rate of oxygen production and the efficiency of solar-to-chemical energy conversion increase monotonically as...[Show more]
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