Koichiro Takao

2006-2008 Posdoc, Tokyo Institute of Technology
2008-2010 Posdoc, FZD (Germany, currently HZDR)
2010-2012 Assistant Prof., Seikei Univ.
2013-2016 Assistant Prof., Tokyo Institute of Technology
2016- Associate Prof, IIR, Tokyo Institute of Technology

Field of Specialization
Actinide Chemistry, Coordination Chemistry, Solution Chemistry, Nuclear Fuel Cycle

Lab. for Adv. Nucl. Energy(IIR, Tokyo Tech)


Research Hub Group: Social Implementation international hub group 

Research Highlights

  • Development of Wet Chemical Processing of Nuclear Waste Glass to Retrieve Radionuclides (ImPACT)
  • Fundamental Study on Advanced Nuclear Fuel Cycle Based on Coordination and Solution Chemistry
  • Preparation of Pure Uranyl(V) Complexes and Exploring Its Behavior Arising from 5f1 Electronic Configuration
  • Microwave-Assisted Solvent Extraction of Inert Platinum Group Metals
  • Development of Efficient and Versatile Method for Ionic Liquid Preparation and Purification


  • Dec. 2016
    Advances in Engineering, “Microwave-Assisted Solvent Extraction of Inert Platinum Group Metals” (Original Paper: ACS Sustainable Chem. Eng. 2016, 4, 2459-2463.)

Selected Awards

  • Bull. Chem. Soc. Jpn. Selected Paper “Efficient and Versatile Anion Metathesis Reaction for Ionic Liquid Preparation by Using Conjugate Acid and Ortho Ester”, Koichiro Takao, Shinobu Takao, Bull. Chem. Soc. Jpn. 2014, 87, 974-981.
  • Poster Award in 5th Green and Sustainable Chemistry Symposium (2005.3).

Selected Publications 

  • Takao, K.; Kazama, H.; Ikeda, Y.; Tsushima, S. “Crystal Structure of Regularly Th-Symmetric [U(NO3)6]2- Salts with Hydrogen Bond Polymers of Diamide Building Blocks” Angew. Chem. Int. Ed., 2019, 58, 240-243.
  • Takanori Mashita,  Satoru Tsushima  and   Koichiro Takao  ”Controlling the lability of uranyl(VI) through intramolecular π–π stacking” Dalton Transactions., 2018, 47, 13072-13080.
  • Takao, K.; Tsushima, S. “The oxidation of borohydrides by photoexcited [UO2 (CO3 )3 ]4Dalton Trans. 2018, 47, 5149-5152.
  • Kazama, H.; Tsushima, S.; Ikeda, Y.; Takao, K. “Molecular and Crystal Structures of Uranyl Nitrate Coordination Polymers with Double-Headed 2-Pyrrolidone Derivatives” Inorg. Chem. 2017, 56, 13530-13534.
  • Takao, K.; Ikeda, Y.; Kazama, H. “New concept for molecular design of N-substituted 2-pyrrolidone derivatives towards advanced reprocessing method for spent ThO2 fuels” Energy Procedia, 2017, 131, 157-162.
  • Takao, K.; Akashi, S. “Exploring Catalytic Activity of Lewis-acidic Uranyl Complexes in Nucleophilic Acyl Substitution of Acid Anhydrides” RSC Adv20177, 12201-12207.
  • Ikeda, S.; Mori, T.; Ikeda, Y.; Takao, K. “Microwave-Assisted Solvent Extraction of Inert Platinum Group Metals from HNO3(aq) to Betainium-Based Thermomorphic Ionic Liquid” ACS Sustainable Chem Eng20164, 2459-2463.
  • Takao, K.; Tsushima, S.; Ogura, T.; Tsubomura, T.; Ikeda, Y. “Experimental and Theoretical Approaches to Redox Innocence of Ligands in Uranyl Complexes: What is Formal Oxidation State of Uranium in Reductant of Uranyl(VI)?” Inorg. Chem201453, 5772-5780.