Development of hydrogen production utilizing magnetic ejection effect of magnetic nanofluids

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K15218
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 31020:Earth resource engineering, Energy sciences-related
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Iwamoto Yuhiro 名古屋工業大学, 工学(系)研究科(研究院), 准教授 (30707162)
• Project Period (FY): 2020-04-01 – 2022-03-31
• Keywords: 磁性ナノ粒子 / 磁性ナノ流体 / 磁性流体 / 水電解 / 数値解析 / 多孔質電極 / 水素製造

Outline of Final Research Achievements

Hydrogen production using renewable energy such as hydroelectric power and its effective utilization are indispensable for a sustainable environment and energy. In the present study, novel water electrolysis using magnetic nanofluids has been proposed. This has the potential to apply the porous electrode to the water electrolysis, resulting in dramatical enhancement of its efficiency.
This study clarified the effect of the electrolyte on the dispersibility of magnetic nanoparticles. Furthermore, it was clarified that the electrolysis is enhanced when the magnetic field intensity on the electrode surface increase. In addition, the redox reaction peculiar to the magnetic nanofluid was confirmed.

Free Research Field

流体工学

Academic Significance and Societal Importance of the Research Achievements

環境保全や持続可能なエネルギー社会の構築のためには，安定的な水素製造・供給が不可欠である。真にCO２フリーの水素製造・利用を実現するためには，再生可能エネルギーを電源とした水電解による水素製造の高効率化と普及が必要である。本研究成果では，磁性ナノ流体を水電解へ応用することにより，多孔質電極の水電解へ適応の可能性を見出し，水素技術に関連した新しい技術を創生した。さらに，本研究は，電磁流体力学と電気化学，材料科学，高分子化学の学際的研究であり，新しい学問領域を開拓した。