{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/132907"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/132907","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Synthesis of perovskite-ceria composites for solar-to-fuel conversion","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).","abstract_html":"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).","abstract_has_math":false,"creators":["Aggarwal, Neil, S.B. Massachusetts Institute of Technology."],"institution":"Massachusetts Institute of Technology","degree_name":"Bachelor","degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. 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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)."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.B."]},{"key":"dc:title","label":"Title","values":["Synthesis of perovskite-ceria composites for solar-to-fuel conversion"]}]}],"canonical_facts":{"dc:contributor.advisor":["Jennifer L. M. Rupp."],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Materials Science and Engineering","MatSci"],"dc:contributor.other":["Massachusetts Institute of Technology. Department of Materials Science and Engineering."],"dc:creator":["Aggarwal, Neil, S.B. 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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)."],"dc:description.degree":["S.B."],"dc:identifier.uri":["https://hdl.handle.net/1721.1/132907"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["MIT theses may be protected by copyright. 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