| 研究実績の概要 |
1.We synthesized powders for P-SOC fabrications and developed four catalysts. Characterizations including XRD, XPS were used to investigate physical properties.
2.We fabricated planner P-SOCs and evaluated their electrochemical performance in hydrogen fuel. In addition, we developed two efficient cathodes (PBCO and PBCsC) for P-SOCs.
3.We have fabricated tubular P-SOCs with BZCYYb as electrolyte. It has the effective area of about 4cm2, this is over 10 times larger than previous used P-SOCs.
4.We evaluated CO2 reduction reaction over P-SOCs, and compared the electrochemical performance with hydrogen bumping reactions.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
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理由
Overall, the research is proceed as planned. Firstly, we fabricated some planner P-SOCs, in order to enhance P-SOCs’ electrochemical performance, we developed two cathode materials (this part will generate two publications). Secondly, we successfully fabricated tubular P-SOCs with large reaction area. Thirdly, we find several catalysts candidates for CO2 reduction and propane dehydrogenation reactions.
In the first year, we also encountered some difficulties, such as the instability of P-SOCs in CO2 contained atmospheres, the mechanical weakness of tubular P-SOCs, and building testing system for tubular tests. We will focus on dealing with these problems in the second year.
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| 今後の研究の推進方策 |
In the second year, the research works will focus on enhancing P-SOCs’ stability and analyzing catalysts catalytic performance as well as revealing reaction mechanisms using in-situ characterizations.
In order to improve P-SOCs’ stability, we will develop several CeO2 based catalysts, using its oxygen storage ability to eliminate deposited carbons during propane dehydrogenation reactions. we will also decrease anode porosity and slightly increase electrolyte thickness to enhance P-SOC’s mechanic strength.
To accurately analyze products and evaluate catalysts performance, we will improve P-SOC’s sealing efficiency by adopting glass and alumina sealants.
We have tried to analyze intermediates using in-situ FTIR and got some good results. In the second year, we will pay more attention to kinetic studies, such as using distribution relaxation of time (DRT) method to analyze EIS curves.
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