Synthesis of perovskite-ceria composites for solar-to-fuel conversion
Name
1263579537-MIT.pdf
Size
2.19 MB
Format
Adobe PDF
Checksum (MD5)
384a6cbfc5bc2971f22c198d6bdd0e15
Author(s)
Aggarwal, Neil,
S.B.
Massachusetts Institute of Technology.
Advisor(s)
Jennifer L. M. Rupp.
Date Issued
2018
Publisher
Massachusetts Institute of Technology
Abstract
Finding suitable replacements for fossil fuels is key to a more sustainable energy economy. This thesis investigated the effectiveness of novel composite materials made from previously researched state-of-the-art materials as catalysts in the thermochemical solar-to-fuel conversion process. Materials such as ceria and gadolinium-doped ceria (GDC) have been determined to have excellent kinetics for this process but have a very high operating temperature. In contrast, perovskites have the advantage of a lower operating temperature but it comes at the expense of lower production rates. Composites containing ceria/GDC/YSZ and perovskite were synthesized to explore synergies that may result in improved performance as a catalyst for the fuel conversion process. Two of these perovskite-ceria composites, LSCF-GDC and LSCC-ceria, showed promise as materials that perform better than their respective individual components. Improved fuel production and oxygen release was observed with these composites in specific temperature regimes (1000-1100°C for oxidation, 1200°C for reduction).
Description
Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, June, 2018
Cataloged from the PDF version of thesis. "June 2018."
Includes bibliographical references (page 30).
Subjects
Materials Science and Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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