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Takahashi (H.)-Yokoyama (S.)-Yokoyama (K.) Lab
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The lab creates high-performance nanomaterials from aqueous solutions at room temperature and atmospheric pressure.
AboutAbout the lab
High-performance nanomaterials, made simply and easily.
The Takahashi (H.)-Yokoyama Lab studies how to make nanomaterials in aqueous solutions at room temperature and atmospheric pressure.
The materials it works with are metals, metal sulfides, oxides, and halides, and composites of these.
Using only simple, easy-to-operate equipment, the lab aims to produce high-performance materials under conditions that save resources and energy and have a low environmental impact.
It aims to bring out the full functionality of the materials it makes and turn them into forms useful to society, such as devices that outperform existing ones.
Key terms
- Nanomaterials
- Materials whose size is on the order of nanometers (one millionth of a millimeter). Even the same substance changes its properties depending on its size and shape.
- Solution process
- A method of making a target material by dissolving raw materials in a liquid and using chemical reactions within the liquid.
- Halides
- Compounds formed when halogens such as chlorine, bromine, and iodine bond with metals and other elements.
NewsLab news
A master's student was selected as a Finalist in the Student Research Competition at Pacifichem 2025
A student received the Excellent Poster Award at the Young Members' Meeting of the Tohoku Branch of the Mining and Materials Processing Institute of Japan (MMIJ)
A master's student received an award for a poster presentation at MMIJ 2025 (Sapporo)
A master's student received the Excellent Presentation Award (Silver) at the MMIJ Tohoku Branch Spring Meeting
A paper by Assistant Professor Yokoyama and colleagues was accepted by J. Magn. Magn. Mater.
ResearchResearch themes
Aiming to solve environmental problems, the lab synthesizes nanomaterials and controls their surfaces and sizes, applying the unique functions that emerge to the fields of environment, energy, and resources. It synthesizes metals, sulfides, oxides, and their composites through solution processes with a small environmental burden, aiming to maximize their functions.
View More ↗MembersFaculty
The Takahashi (H.)-Yokoyama Lab consists of faculty members and doctoral, master's, and undergraduate students.As of 2025
- ProfessorHideyuki Takahashi
- Associate ProfessorShun Yokoyama
- Assistant ProfessorKoji Yokoyama
VoicesStudent voices
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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: “Lab glassware” Tweenk / CC BY 3.0 (cropped)
- Related lab (Endo-Ohori Lab): “IMaGe 31072R – Silicon Wafer 20120926” Rob Bulmahn / CC BY 2.0 (cropped)
- Related lab (Kamitakahara-Umetsu Lab): “183486main MSRR-12” NASA / Public domain (cropped)
- Related lab (Kano-Kushimoto Lab): “Rhodium powder pressed melted” Alchemist-hp (talk) www.pse-mendelejew.de derivative work: Purpy Pupple (talk) / CC BY-SA 3.0 de (cropped)
- Related lab (Wang Lab): “Environmental Transmission Electron Microscope” Reneegas1 / CC BY-SA 4.0 (cropped)
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