Correlating Oxygen Mobility with Thermochemical CO \textsubscript2 -Splitting Efficiency in A-site Substituted Manganite Perovskites

Geometric parameters influence the thermochemical redox properties of A-site substituted perovskite oxygen carriers. , The effect of lattice geometric parameters of perovskite oxides on thermochemical redox CO 2 -splitting process is highlighted. Experimentally-derived amounts of O 2 and CO evolved...

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Bibliographic Details
Published in:Sustainable energy & fuels 2021-07, Vol.5 (18), p.4570-4574
Main Authors: Nair, Mahesh Muraleedharan, Abanades, Stéphane
Format: Article
Language:English
Subjects:
Engineering Sciences
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Summary:Geometric parameters influence the thermochemical redox properties of A-site substituted perovskite oxygen carriers. , The effect of lattice geometric parameters of perovskite oxides on thermochemical redox CO 2 -splitting process is highlighted. Experimentally-derived amounts of O 2 and CO evolved were found to correlate with critical radius per unit cell volume ( R c.u ) and specific free volume ( V F.S ), respectively, in a series of phase pure A-site substituted perovskites. These findings demonstrate the possibility of designing new oxygen carrier materials based on geometric parameters while predicting their CO 2 -splitting activity during two-step cycles.
ISSN:2398-4902
2398-4902
DOI:10.1039/D1SE00950H