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Proton-Conducting Oxides Lab
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A lab exploring hydrogen production and power generation using solid materials that transport protons.
AboutAbout the lab
Exploring proton conductors through environmental and energy electrochemistry.
The Matsumoto Lab (Hydrogen Production Process Lab) uses “environmental and energy electrochemistry” as its keyword and studies the development and application of functional materials, centered on solid materials that transport protons.
Using proton-conducting oxides, the lab works on technology development for devices such as fuel cell power generation and hydrogen production by steam electrolysis.
From the standpoint of solid-state electrochemistry, the lab aims to contribute to technologies that improve the environment, such as environmental purification, moving away from oil, and realizing a low-energy society.
Key terms
- Proton
- The cation of hydrogen. This lab works with solid materials that have the property of transporting protons.
- Steam electrolysis
- A method in which electricity from an external power source is passed through to pull hydrogen out of water in the form of protons and separate it as hydrogen.
- Nanoionics
- A field dealing with the unusual ion-conduction properties that appear at solid interfaces.
ResearchResearch themes
Under the keyword “environmental and energy electrochemistry,” this lab works on the development and application of functional materials built around ion-conducting solid materials, especially proton-conducting ones. It aims to carry out research that contributes, from the standpoint of solid-state electrochemistry, to technologies that improve the environment.
*Illustrative imageDeveloping hydrogen energy devices
Using solid materials that transport protons, the cations of hydrogen, the lab develops devices such as fuel cell power generation, hydrogen production by electrolysis, electrochemical hydrogen separation, and hydrogen sensing. By improving electrode materials and making the electrolyte into a thinner film, it has succeeded in a steam electrolysis experiment that exceeded 90% energy efficiency (HHV) when operated at 600°C.
*Illustrative imageDeveloping new ion-conducting solids
Starting from proton-conducting perovskites, which were born in Japan in 1981, the lab is taking on the development of new materials. It found a phenomenon in which the conductivity of oxides with dispersed metal nanoparticles changes by several orders of magnitude, and has also developed a proton conductor using nano-titania particles.
*Illustrative imageExploring new phenomena and fundamental science
The lab has discovered nanoionic phenomena specific to proton-conducting oxides and has shown that ion conductivity in solids may be controllable by making use of interfaces. It aims to explore new phenomena hidden in solid-state ionics, and the fundamental science that can guide materials development.
MembersFaculty
The Matsumoto Lab consists of faculty members, academic researchers, doctoral, master's, and undergraduate students, research students, and secretaries.As of 2025
- ProfessorHiroshige Matsumoto
- Associate ProfessorKwati Leonard
- Assistant ProfessorMai Tomizaki
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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: “Electrolysis Apparatus” Ivan Akira / CC BY-SA 3.0 (cropped)
- Developing hydrogen energy devices: “NASA Rocket Liquid Hydrogen Tank Moved for Priming (MAF 20231114 CS3 LH2BreakCellE06)” NASA Marshall Space Flight Center / Michael DeMocker / Public domain (cropped)
- Developing new ion-conducting solids: “Dense pellet forming2” Dominik Bejma, Marta Kowalkińska / CC BY-SA 4.0 (cropped)
- Exploring new phenomena and fundamental science: “Science from the young age” Fati K06 / 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)
- Related lab (Solid Electrolytes and All-Solid-State Batteries Lab): “Na-ion battery scientist1” Tavo Romann / CC BY 4.0 (cropped)
- Related lab (Photocatalysis and Water Splitting Lab): “Splitting water ( )” marsupium photography / CC BY-SA 2.0 (cropped)
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