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Energy Media Conversion Materials Lab
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A lab that develops materials to store, transport, and convert heat and hydrogen without waste.
AboutAbout the lab
Materials that store and carry heat
The lab is searching for materials and processes that can store and transport energy at high density and convert it efficiently.
Its main themes include next-generation thermal energy storage materials for solar heat and industrial waste heat, an energy-saving process for producing oxygen, and a new ironmaking method that uses ammonia as a fuel.
The lab is also researching how to produce fine ceramics, such as nitrides and oxynitrides, in a short time by combustion synthesis.
Using exergy theory, the lab also works on designing systems in which the total sum of losses is minimized.
Key terms
- Phase change material (PCM)
- A material that stores heat by using the heat absorbed or released when it changes between solid and liquid
- Exergy
- The portion of energy that can actually be converted into work; a measure of the quality of energy
- Combustion synthesis
- A method of making materials in a short time by using the momentum of an exothermic reaction between powders that spreads on its own
NewsLab news
Won the BP Award at the 10th World Congress on Particle Technology
A paper by a Project Assistant Professor was accepted by Chemistry of Materials
A paper by a doctoral student was accepted by Chemical Engineering Journal
A doctoral student won a Poster Presentation Award at the 34th Annual Conference of the Japan Institute of Energy
ResearchResearch themes
The lab is searching for materials and processes that can store and transport energy at high density and convert it efficiently. Its research centers on next-generation thermal energy storage materials, energy-saving oxygen production, a new ironmaking method, ceramics made by combustion synthesis, and system design.
*Illustrative imageNext-generation thermal energy storage materials
Phase change materials (PCMs) use the heat absorbed or released when a substance changes between solid and liquid, so they can store heat at high density and deliver it at a constant temperature for transport. The lab develops PCMs suited to each temperature range, from room temperature to high temperatures above 500°C, and has also made microcapsule PCMs that can be used above 300°C.
*Illustrative imageEnergy-saving oxygen production
The lab is developing oxide-based oxygen storage materials that can separate oxygen from air with only a small change in pressure. Findings suggest that using this material may make it possible to produce oxygen with less than half the energy required by conventional air separation technology.
*Illustrative imageA new ironmaking method using ammonia
The lab tackles the resource, environmental, and energy problems of the steel industry from the perspectives of materials science and process engineering. Its main themes are a technology that upgrades low-grade raw materials and fuels by chemical vapor infiltration, an ironmaking method that uses ammonia as the reducing agent, and a technology that makes use of high-temperature waste heat from steelworks.
*Illustrative imageCeramics made by combustion synthesis
In combustion synthesis, an exothermic reaction between powders spreads on its own, so materials can be made with little energy and in a short time. The lab adds trace elements to nitrides and oxynitrides, which are attractive as heat-dissipating materials for electronic components, and also shapes them into nanoparticles and nanofibers.
MembersFaculty
The members of the Energy Media Conversion Materials Lab consist of faculty, postdoctoral researchers, academic researchers, technical assistants, secretaries, doctoral, master's, and undergraduate students, and research students.As of 2026
- ProfessorTakahiro Nomura
- Project Assistant ProfessorMelbert Jeem
- Project Assistant ProfessorKeita Tanahashi
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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: “Molten iron from the blast furnace” UCL Engineering / CC BY-SA 2.0 (cropped)
- Next-generation thermal energy storage materials: “SandiaNSTTF fieldimage” Nsttf / CC BY-SA 3.0 (cropped)
- Energy-saving oxygen production: “Linde (previously AGA) air separation plant in Washington, West Virginia.” Snoopywv / CC BY-SA 3.0 (cropped)
- A new ironmaking method using ammonia: “Redcar blast furnace - geograph.org.uk - 1709346” Alan Murray-Rust / CC BY-SA 2.0 (cropped)
- Ceramics made by combustion synthesis: “ThermiteReaction” User:Nikthestunned (Wikipedia) / CC BY-SA 3.0 (cropped)
- Related lab (Advanced Materials Hybrid Engineering Lab): “Atomic force microphotography of copper nanoparticles” Dr Anatoly / CC BY 4.0 (cropped)
- Related lab (Chemical Systems Engineering Lab): “Wind power plants in Xinjiang, China” 林 慕尧 / Chris Lim from East Coast (东海岸), Singapore (新加坡) / CC BY-SA 2.0 (cropped)
- Related lab (Functional Materials Lab): “UFP Tokamak COMPASS foto Stanislava Kyselová, AV ČR (1)” Akademie věd České republiky / Czech Academy of Science (photo by Stanislava Kyselová) / CC BY-SA 3.0 cz (cropped)
- Related lab (Inorganic Synthesis Chemistry Lab): “Early Testing of Aerogel and Silicon Detectors for TIGERISS (SVS14979 - -Aerogel-4)” NASA's Scientific Visualization Studio - eMITS/Sophia Roberts, eMITS/Scott Wiessinger, University of Maryland College Park/Jeanette Kazmierczak / Public domain (cropped)
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