2022 Fiscal Year Annual Research Report
Development of next generation proton-conducting solid oxide cells (P-SOC) towards environment-friendly power-to-X (PtX) reactions
| Project/Area Number |
21K20490
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| Research Institution | Kyushu University |
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Principal Investigator |
SHI NAI 九州大学, エネルギー研究教育機構, 学術研究員 (10906217)
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| Project Period (FY) |
2021-08-30 – 2023-03-31
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| Keywords | proton ceramic cells / olefin production / CO2 reduction / fuel cell / catalysts / membrane reactor |
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| Outline of Annual Research Achievements |
Overall, we have accomplished the proposed targets listed below (1) We have successfully fabricated 2 P-SOC configurations with effective area ranging from 0.5~12 cm2. (2) The Pt/Nb2O5 catalyst was found to be suitable for propane dehydrogenation in P-SOCs. (3) External electricity promotes propane dehydrogenation and CO2 reduction, as confirmed by on-line GC and mass spectroscopy results. (4) Stable operation of P-SOCs were achieved for 100 hours at 300 oC and 140 cyclic currents operation at 600 oC. (5) Propane dissociation is the rate-limiting step among anodic step reactions. (6) The in-situ FT-IR results suggested that Ni-BaZr0.1Ce0.7Y0.1Yb0.1O3-δ heterogenous catalyst promotes the formation of CH4. The project successfully achieved the objectives and provided valuable insights into the electrode reaction mechanisms and rate-limiting steps through electrochemical characterizations and spectroscopy techniques.
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