Development of Cathode Catalysis for Co-Electrolysis of CO2 and H2O
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Date
2024-05
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The Ohio State University
Abstract
The increase in CO2 emissions and the strained future energy capabilities of fossil fuels have driven research to focus on sustainable energy. To address these alarming issues, high-temperature co-electrolysis of CO2 and H2O conducted within a solid oxide electrolysis cell (SOEC) can be utilized. It not only reduces the amount of CO2 in the atmosphere, but also generates usable synthesis gas (H2 and CO). This synthesis gas can be further processed into light hydrocarbons via Fischer-Tropsch synthesis. Therefore, it is evident that improving the SOEC is of upmost importance. In this study, the double perovskite cathode catalyst Sr_(2-x)Fe_(1.55)Mo_(0.45)O_(6) (SFM) will be investigated for its high electronic and ionic conductivity, which is ideal for the co-electrolysis of CO2 and H2O at high temperatures. The study will highlight various permutations of the base SFM via A-site deficiency and nickel and cobalt doping, which improve the electrical conductivity and the chemical activity. The proposed study will centralize on developing a cost-effective, chemically active catalyst for the aforementioned electrolysis reactions to ensure SOEC’s will become a viable economic competitor in the marketplace.
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Keywords
Electrocatalysis, Co-Electrolysis of CO2 and H2O, Syngas, Perovskite Catalyst