2020 Fiscal Year Annual Research Report
脱成分技術を駆使したナノ多孔質電極の開発と水素製造光電気化学セルの高効率化
| Project/Area Number |
20J14001
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| Research Institution | Tohoku University |
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Principal Investigator |
鄭 然範 東北大学, 工学研究科, 特別研究員(DC2)
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| Project Period (FY) |
2020-04-24 – 2022-03-31
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| Keywords | Composite / Precursor / Heterostructure / Cu-Fe / Liquid metal dealloying |
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| Outline of Annual Research Achievements |
I studied the overall properties of Cu-Fe alloys in detail. Since this study is difficult to proceed without a detailed understanding of the Cu-Fe alloy to be used as a precursor, the study was conducted by adjusting the amount of Fe element. As the amount of Fe minor alloying element was adjusted, the microstructure was identified, and secondary phase separation was also investigated. In particular, since future studies will be carried out by adding other additional elements, we have studied in detail the effects of these additional elements on the form and fraction increase of secondary phase separation and have greatly helped to establish the mechanism. Developed from this idea, the Cu-Fe-X precursor confirmed that high strength and high fraction secondary phase separation progressed.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
The basic experiments to achieve the development goals were carried out perfectly.
1)A structural understanding was implemented.
2)The phenomenon of secondary phase separation was discussed.
3)The deformation behavior is described, which requires a detailed understanding of secondary phase separation.
4)It will serve as the basic foundation for future research into the heterostructure composite.
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| Strategy for Future Research Activity |
Based on previous year's findings, we are planning to develop more complex structures.
We are planning to measure the various properties of the complex developed using the Liquid metal dealloying method.
Furthermore, simulations are required for a detailed understanding of the development. To help understand the developed one and increase reliability of the experiments we will use finite element method (FEM) modeling.
With FEM simulation, I will measure the fields cannot be directly identified by the experiment as follows:
1)Thermal Stress Measurement with FEM
2)Pressure obtained by geometric factor
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