2022 Fiscal Year Final Research Report
Synthesis of novel spherical porous metal oxide composite and functional evaluation for reverse water gas shift reaction
Project/Area Number |
20K05216
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 27020:Chemical reaction and process system engineering-related
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Research Institution | Japan Aerospace EXploration Agency |
Principal Investigator |
SHIMA Asuka 国立研究開発法人宇宙航空研究開発機構, 研究開発部門, 主任研究開発員 (80570035)
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Co-Investigator(Kenkyū-buntansha) |
小廣 和哉 高知工科大学, 環境理工学群, 教授 (60170370)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 複合金属酸化物 / 逆水性ガスシフト反応 / CO合成 |
Outline of Final Research Achievements |
Reverse water-gas shift reaction by the chemical loop method (RWGS-CL) has attracted attention as one of the methods for the selective synthesis of CO from CO2. In this study, we investigated the effects of the structural properties of a novel spherical porous metal oxide composite composed of iron oxide and cerium oxide in this reaction. Using TGA, XPS, GC, etc., we evaluated the reaction characteristics of a FeOx-CeO2 spherical porous metal oxide composite. STEM-EDX analysis of the post-reaction samples revealed that Fe and Ce remained homogeneously dispersed. Repeated testing of RWGS-CL suggested the stabilizing effect of the reaction due to metal oxide compositing.
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Free Research Field |
航空宇宙工学
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Academic Significance and Societal Importance of the Research Achievements |
新規Fe2O3-CeO2ナノ粒子球状多孔体の酸素キャリアとしての有用性を示すことで、他のCL反応向け酸素キャリア合成への展開が期待できる。他方、COは石油由来の有価物を人工的に製造するための出発原料であり、このCOを従来よりも高効率・高選択的かつ省エネにCO2から直接合成することは、今日の世界的なCO2活用の機運の中、実用化が強く期待される反応経路の一つと言える。
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