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Takeuchi Lab
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The lab uses plasma to purify water and to cut off electric current quickly.
AboutAbout the lab
Tackling water and electricity challenges with plasma
The Takeuchi Lab conducts a variety of research mainly using atmospheric-pressure plasma.
It aims to realize advanced water treatment and sterilization with plasma, and fast-acting DC circuit breakers.
The lab continues research that goes back to elucidating the physics of why phenomena occur, together with the discovery of new applications.
Key terms
- Plasma
- A state in which a strong electric field is applied to a gas so that atoms separate into electrons and ions. It produces highly reactive particles
- Atmospheric-pressure plasma
- Plasma generated at ordinary air pressure, without creating a vacuum
- DC circuit breaker
- A device for quickly cutting off the flow of direct current when necessary
NewsLab news
A master's student received the Young Researcher Excellent Presentation Award at the IEEJ Technical Meeting on New Energy and Environment
A doctoral student received the Best Oral Presentation award at EAPETEA-10
Associate Professor Takeuchi received the 26th Plasma Materials Science Award
A master's student received the YPC Encouragement Award at the IEEJ Power and Energy Society Annual Conference
A doctoral student received an outstanding presentation award at I-YES 2024
ResearchResearch themes
The lab conducts research aiming at advanced water treatment and sterilization using plasma, and at fast-acting DC circuit breakers. It continues research that goes back to elucidating the physics, together with the discovery of new applications.
*Illustrative imageDecomposing harmful substances in water with plasma
The lab studies methods of breaking down organofluorine compounds (PFAS), which are hard to decompose and accumulate in the body, using plasma generated in water or at the water surface. It also investigates what kinds of highly reactive species are produced by plasma combined with the force of collapsing bubbles.
*Illustrative imageMaking catalysts with plasma
The lab uses plasma to chemically modify carbon, such as waste from wood-based power generation, to make catalysts that break down plant fibers into raw material for fuel. It aims at environmentally friendly catalyst production that does not use large amounts of chemicals or heat.
*Illustrative imageQuickly interrupting direct current
In systems that transmit power by direct current, it is hard to interrupt the current in the event of a fault. The lab studies circuit breakers that cut current quickly in combination with fuses, and the effects of the short arcs generated at switch contacts.
MembersFaculty
The Takeuchi Lab consists of faculty, young researchers with associate visiting status, doctoral, master's, and bachelor's students, and administrative support staff.As of 2026
- Associate ProfessorNozomi TakeuchiPublications ↗
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Water plasma” Original uploader was Sfusare at en.wikipedia. A later version was uploaded by Equazcion also at en.wikipedia. / CC BY-SA 3.0 (cropped)
- Decomposing harmful substances in water with plasma: “GRAVARC” Jiri Sperka, Lucia Potocnakova and Vit Kudrle / CC BY-SA 4.0 (cropped)
- Making catalysts with plasma: “Pile of wood chips Namibia” Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) - Bush Control and Biomass Utilisation Project / CC BY-SA 4.0 (cropped)
- Quickly interrupting direct current: “Liquid Power Fuse )” Windell Oskay from Sunnyvale, CA, USA / CC BY 2.0 (cropped)
- Related lab (Okino Lab): “Buse plasma à pression atmosphérique” Acxys / CC BY-SA 3.0 (cropped)
- Related lab (Akatsuka Lab): “Gerds plasma” Gerd domrath at German Wikipedia / Public domain (cropped)
- Related lab (Toma Lab): “Au nanoparticles” Nikonianman / CC BY-SA 4.0 (cropped)
- Related lab (Urakabe-Harada Lab): “IGBT 2441” Daniel*D / CC BY-SA 3.0 (cropped)
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