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Fuel Cell Catalysts and Nanocarbon Lab
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A lab that designs nanocarbon through chemistry to develop materials for batteries, light emission, and biological applications.
AboutAbout the lab
Turning carbon nanotubes into functional materials through the power of chemistry
The Fujigaya Lab conducts research on various nanomaterials, including carbon nanotubes, ranging from fundamental physical properties to applied development aimed at practical use.
Carbon nanotubes are an attractive material for battery materials, near-infrared light-emitting materials, and life science materials.
Building on molecular synthesis techniques and supramolecular chemistry, the lab wants to bring world-leading materials into society through the power of "chemistry."
The lab is also working on the development of next-generation fuel cells.
Key terms
- Carbon nanotube
- A carbon tube made by rolling up a graphene sheet. For semiconducting single-walled ones, the emission wavelength is determined by how the sheet is rolled (chirality).
- Near-infrared light
- Light that penetrates living tissue well. Carbon nanotubes can absorb it, and semiconducting single-walled ones also emit it.
- Local chemical modification
- A method that chemically attaches a very small amount of molecules to the surface of single-walled carbon nanotubes to greatly improve their emission properties.
NewsLab news
A paper by a graduate of the lab was accepted in ACS Applied Bio Materials
A master's student received an Outstanding Poster Award at the Academic Conference of the Thermoelectric Society of Japan
A paper by a graduate of the lab on locally modified nanotubes was accepted in Nanoscale
A master's student received a Poster Award at the Chemistry-Related Chapters Joint Kyushu Conference
A doctoral student received the Outstanding On-Demand Presentation Award at the Annual Meeting of the Society of Polymer Science, Japan
ResearchResearch themes
The Fujigaya Lab integrates polymer chemistry, supramolecular chemistry, organic chemistry, and theoretical chemistry to develop innovative nanomaterials. Beyond experiments, it also takes a data science approach that predicts optimal solutions from existing data, aiming to develop next-generation energy materials that can be implemented in society.
*Illustrative imageDeveloping materials for next-generation batteries
The lab focuses on carbon materials as the material for electrodes, which are essential to energy devices. Carbon excels in electrochemical stability, electrical conductivity, and mechanical strength, and its mesh structure favors mass diffusion, so the lab considers it an ideal electrode material.
*Illustrative imageBiological applications of carbon nanotubes
Carbon nanotubes can absorb near-infrared light, which penetrates living tissue well. The lab studies biological applications that make use of this property.
*Illustrative imageFlexible thermoelectric generation sheets
Using single-walled carbon nanotubes (SWCNTs), the lab aims to develop thermoelectric conversion sheets with high conversion efficiency and durability. It selects the diameter and electrical properties of the CNTs, identifies the mechanism that achieves stable doping, and aims to improve durability.
*Illustrative imageSupramolecular control of near-infrared emission
In "local chemical modification," where a very small amount of molecules is chemically attached to the surface of SWCNTs, emission properties can be greatly improved. Noting that the structure and function of the attached molecules strongly affect emission, the lab aims to create new near-infrared emission functions.
MembersFaculty
The Fujigaya Lab's members are faculty, a secretary, project faculty, technical staff, and administrative assistants for the Advanced Research Infrastructure for Materials and Nanotechnology in Japan (ARIM), postdoctoral researchers, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorTsuyohiko Fujigaya
- Associate ProfessorTomohiro Shiraki
- Assistant ProfessorNaoki Tanaka
- Assistant ProfessorMasaaki Morikawa
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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: “Multi-nanotube” TED-43 / CC BY-SA 3.0 (cropped)
- Developing materials for next-generation batteries: “Coin-cells” Gerhard H Wrodnigg / CC BY-SA 2.5 (cropped)
- Biological applications of carbon nanotubes: “Types of Carbon Nanotubes” User Mstroeck on en.wikipedia / CC BY-SA 3.0 (cropped)
- Flexible thermoelectric generation sheets: “Flexible Brick” Iamilona / CC BY-SA 4.0 (cropped)
- Supramolecular control of near-infrared emission: “Luminescence material” Vishal Garasia vish / CC BY-SA 4.0 (cropped)
- Related lab (Electrochemical Devices and Energy Storage Materials Lab): “EQCM1” Ruoha Zhao / CC BY-SA 4.0 (cropped)
- Related lab (Solid Electrolytes and All-Solid-State Batteries Lab): “Na-ion battery scientist1” Tavo Romann / CC BY 4.0 (cropped)
- Related lab (Ion-Conducting Ceramics Lab): “Breakdown of a ceramic tube” Korzhenkozos / CC BY 4.0 (cropped)
- Related lab (Ion-Conducting Ceramics Lab): “KSC-06pd0005 - Technicians working on fuel cell in OPF” Kim Shiflett / Public domain (cropped)
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