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Heavy Element Physical Chemistry Lab
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The lab puts the power hidden in actinides, often seen as a nuisance, to use in medicine and batteries.

AboutAbout the lab
Putting the wonders of actinides to use.
The Heavy Element Physical Chemistry Lab studies the physical and chemical properties of actinides, the 15 elements beginning with actinium.
Actinides tend to be treated as a nuisance because of radioactive waste, but they hold interesting properties in superconductivity, magnetism, chemical reactions, and electrode reactions.
Working with researchers in physics, chemistry, pharmacy, and medicine, the lab addresses the problem of radioactive waste and the production of medical radioisotopes used in cancer treatment.
Key terms
- Actinides
- The 15 elements from actinium to lawrencium in the periodic table. They include uranium and plutonium, and all are radioactive
- Minor actinides
- Actinides other than uranium and plutonium contained in spent nuclear fuel. They are long-lived
- Redox flow battery
- A battery that stores electrolyte in tanks and charges and discharges while pumping it through
ResearchResearch themes
The lab studies the physical chemistry of actinides through both experiments in electrochemistry, coordination chemistry, and solid-state chemistry and quantum calculations, aiming at applications in radiopharmaceuticals and the stabilization of radioactive waste.
*Illustrative imagePhysical Chemistry of Actinides
Elements heavier than uranium were discovered only recently, and they are drawn outside the main body of the periodic table. The lab investigates the interesting properties hidden in actinides, such as superconductivity, magnetism, chemical reactions, and electrode reactions.
*Illustrative imageAddressing Radioactive Waste
The lab applies its knowledge of actinide chemistry to the problem of long-lived minor actinides in spent fuel. It applies a method of forming oxides under mild conditions below the boiling point of water to their treatment.
*Illustrative imageRadioisotopes for Cancer Treatment
In 2016, a case was reported in which a patient with cancer that had metastasized throughout the body was completely cured by administration of Ac-225. Through methods such as using nuclear reactors and milking of nuclear fuel material, the lab aims to produce medical radioisotopes that can be supplied stably within Japan.
*Illustrative imageBatteries That Charge and Discharge at High Power
Building on long experience researching uranium and neptunium redox flow batteries, the lab is advancing research on vanadium semi-solid batteries with the world's highest power output.
MembersFaculty
The faculty of the Heavy Element Physical Chemistry Lab is Professor Tomoo Yamamura of the Institute for Integrated Radiation and Nuclear Science.
- ProfessorTomoo Yamamura
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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: “Uranium ore and "yellowcake" uranium concentrate at the Greifswald Nuclear Power Plant information center” Siarhei Besarab / CC BY-SA 4.0 (cropped)
- Physical Chemistry of Actinides: “Actinide Buildup Chart 03a” Roderich Kahn / CC BY-SA 4.0 (cropped)
- Addressing Radioactive Waste: “Robot for storing radioactive canisters” Pieter Kuiper / Public domain (cropped)
- Radioisotopes for Cancer Treatment: “Ac-225 nitrate (17.4, 10.0, 1.0 mCi) by Dr Andrew R Burgoyne” Andrewrburgoyne / CC BY-SA 4.0 (cropped)
- Batteries That Charge and Discharge at High Power: “Vanadium Redox flow battery” Radiotrefoil / CC BY-SA 4.0 (cropped)
- Related lab (Fluid Dynamics Lab): “Shockwave pattern around a T-38C observed with Background-Oriented Schlieren photography (1)” NASA & US Air Force: J.T. Heineck / Ed Schairer / Maj. Jonathan Orso / Maj. Jeremy Vanderhal / Public domain (cropped)
- Related lab (Quantum Beam Materials Analysis Lab): “High School Student Conducting a X-Ray Diffraction Test” 高柏瑋
(Po-Wei Kao, or Powei Kao) / CC BY-SA 4.0 (cropped) - Related lab (Microbiosystem Lab): “Lab on a Chip ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (Aerospace Dynamics Lab): “Common mime (Papilio clytia) form dissimilis in flight Luang Prabang” Charles J. Sharp / CC BY-SA 4.0 (cropped)
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