Oxygen exchange materials for solar thermochemical splitting of H2O and CO2: a review.

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Title: Oxygen exchange materials for solar thermochemical splitting of H2O and CO2: a review.
Authors: Scheffe, Jonathan R.1 jscheffe@ethz.ch, Steinfeld, Aldo1,2
Source: Materials Today. Sep2014, Vol. 17 Issue 7, p341-348. 8p.
Subjects: Thermochemistry, Solar energy, Carbon dioxide, Metallic oxides, Oxidation-reduction reaction, Thermodynamics, Oxygen, Chemical kinetics
Abstract: This review summarizes state of the art metal oxide materials used in two-step thermochemical redox cycles for the production of H 2 and CO from H 2 O and CO 2 using concentrated solar energy. Advantages and disadvantages of both stoichiometric (e.g. iron oxide based cycles) and nonstoichiometric (e.g. ceria based cycles) materials are discussed in the context of thermodynamics, chemical kinetics, and material stability. Finally, a perspective aimed at future materials development and requirements necessary for advances of process efficiencies is discussed. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:This review summarizes state of the art metal oxide materials used in two-step thermochemical redox cycles for the production of H 2 and CO from H 2 O and CO 2 using concentrated solar energy. Advantages and disadvantages of both stoichiometric (e.g. iron oxide based cycles) and nonstoichiometric (e.g. ceria based cycles) materials are discussed in the context of thermodynamics, chemical kinetics, and material stability. Finally, a perspective aimed at future materials development and requirements necessary for advances of process efficiencies is discussed. [ABSTRACT FROM AUTHOR]
ISSN:13697021
DOI:10.1016/j.mattod.2014.04.025