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Dr. Satoshi Tominaka

World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA)

National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.

E-mail : Tominaka.Satoshi@nims.go.jp
Tel : +81-29-860-4594

Research ID: H-2816-2011

Research Activities

Mesoscale materials are of great importance for electrochemical applications, especially in technologies such as fuel cells and batteries. Our research group combines mesoscale materials chemistry with rigorous atomic-scale structural analysis to explain the origin of materials properties:

  • Synthesis: We synthesize materials via solvothermal reactions (e.g., for metal organic frameworks) 1,2, low temperature reduction reactions (e.g., for conductive oxides) 3–5 and electrochemical reactions (e.g., for metal nanostructures) 6.
  • Analysis: We analyze atomic structures by general technique such as IR spectroscopy and X-ray diffraction as well as X-ray pair distribution functions (PDFs) 7. In addition to the laboratory X-ray measurements, we often use synchrotron facilities. The data is analyzed using in-house programs as well as other major programs for the real-space Rietveld analysis and the Reverse Monte Carlo method. The structures are modeled via molecular mechanics simulations as well as density-functional theory (DFT) calculations.
  • Properties: We measure electrochemical properties using a range of setups including general techniques such as rotating disk electrode (RDE) and electrochemical impedance spectroscopy (EIS), in addition to more exotic methods such as measuring the ion/electron conductivities for single crystals 8,9. In addition to these property measurements and structure analysis, we carry out a variety of technique such as synchrotron X-ray photoelectron spectroscopy to understand the mechanism 2,7.

Selected References:

  1. Tominaka, S.; Coudert, F. X.; Dao, T. D.; Nagao, T.; Cheetham, A. K.; J. Am. Chem. Soc.; 2015; 137, 6428.

  2. Tominaka, S.; Hamoudi, H.; Suga, T.; Bennett, T. D.; Cairns, A. B.; Cheetham, A. K.; Chem. Sci.; 2015; 6, 1465.

  3. Tominaka, S.; Inorg. Chem.; 2012; 51, 10136.

  4. Tominaka, S.; Chem. Commun.; 2012; 48, 7949.

  5. Tominaka, S.; Tsujimoto, Y.; Matsushita, Y.; Yamaura, K.; Angew. Chemie-International Ed.; 2011; 50, 7418.

  6. Tominaka, S.; J. Mater. Chem.; 2011; 21, 9725.

  7. Tominaka, S.; Yoshikawa, H.; Matsushita, Y.; Cheetham, A. K.; Mater. Horiz.; 2014; 1, 106.

  8. Tominaka, S.; Cheetham, A. K.; RSC Adv.; 2014; 4, 54382.

  9. Tominaka, S.; Henke, S.; Cheetham, A. K.; Crystengcomm; 2013; 15, 9400.