Clean energy circulation system using atmospheric pressure plasma

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K14958
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 21010:Power engineering-related
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Zen Shungo 東京工業大学, 工学院, 助教 (90781310)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 大気圧非熱平衡プラズマ / エネルギーキャリア / アンモニア / 窒化処理

Outline of Final Research Achievements

In recent years, Japan has begun to shift to a low-carbon society with a large input of renewable energy generation, which is unstable in terms of power generation. Therefore, there is a growing need for technology to store and transport surplus electricity produced in chemical energy from the viewpoint of the stability of the power system. In this research project, magnesium nitride is proposed as a new solid energy carrier, and its reuse is aimed at realizing a clean energy recycling society for the future low-carbon society.
As a result of this research, we found that it is possible to synthesize CO2-free magnesium nitride using atmospheric pressure plasma synthesis under a nitrogen-hydrogen mixed gas atmosphere. Furthermore, multi-step synthesis experiments were conducted to elucidate the principle of the nitridation process.

Free Research Field

大気圧プラズマ応用工学

Academic Significance and Societal Importance of the Research Achievements

本研究では金属酸化物の中でも特に化学結合が強く，還元しにくい酸化マグネシウムを窒化処理の対象として選んでいる。従来酸化マグネシウムを還元するには数百度以上の高温と還元剤が必要不可欠であった。本研究では室温の大気圧プラズマで酸化マグネシウムを窒化することができた。そのため，大気圧プラズマを用いた窒化処理手法は他の金属酸化物に対しても同様に窒化処理効果があると考えられ，新たな金属窒化物の製造法として学術的意義，社会的意義が大きいと考えられる。