Synthesis and characterization of ferrite materials for thermochemical CO2 splitting using concentrated solar energy

Andrea Ambrosini, Eric N. Coker, Mark A. Rodriguez, Stephanie Livers, Lindsey R. Evans, James E. Miller, Ellen B. Stechel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Scopus citations


The Sunshine to Petrol effort at Sandia aims to convert carbon dioxide and water to precursors for liquid hydrocarbon fuels using concentrated solar power. Significant advances have been made in the field of solar thermochemical CO2-splitting technologies utilizing yttria-stabilized zirconia (YSZ)-supported ferrite composites. Conceptually, such materials work via the basic redox reactions: Fe3O43FeO + 0.5O2 (Thermal reduction, >1350°C) and 3FeO + CO2→ Fe3O4 + CO (CO2-splitting oxidation, <1200°C). There has been limited fundamental characterization of the ferrite-based materials at the high temperatures and conditions present in these cycles. A systematic study of these composites is underway in an effort to begin to elucidate microstructure, structure-property relationships, and the role of the support on redox behavior under high-temperature reducing and oxidizing environments. In this paper the synthesis, structural characterization (including scanning electron microscopy and room temperature and in-situ x-ray diffraction), and thermogravimetric analysis of YSZ-supported ferrites will be reported.

Original languageEnglish (US)
Title of host publicationAdvances in CO2 Conversion and Utilization
PublisherAmerican Chemical Society
Number of pages13
ISBN (Print)9780841225961
StatePublished - Dec 3 2010
Externally publishedYes

Publication series

NameACS Symposium Series
ISSN (Print)0097-6156
ISSN (Electronic)1947-5918

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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