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Chemistry Dept.

Dept. of Chemistry
OKAYAMA UNIVERSITY
Okayama-shi, Kita-ku
Tsushimanaka 3-1-1
JAPAN 700-8530
FAX: 086-251-7853

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Home » Staff » Kazuma Gotoh

Kazuma Gotoh

Kazuma Gotoh

Associate Professor

Research field : Structural Chemistry

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Kazuma GOTOH, Ph.D. (Science)
Associate Professor

Research field:
Physical Chemistry, Inorganic Chemistry,
Nuclear Magnetic Resonance

Research Interests:
Current research topics are the structure, state and dynamics of molecules and ions doped in pores of nanoporous materials or materials intercalated between graphite layers. Research using solid state nuclear magnetic resonance can greatly contribute to the development of secondary batteries such as lithium ion batteries. Some novel nanocarbon materials and catalytic reactions are also developed.

NEWS RELEASE (19-Aug-2020) in EyrekAlert!


Selected Publications:

  1. Mechanisms for overcharging of carbon electrodes in lithium-ion/sodium-ion batteries analysed by operando solid-state NMR, K. Gotoh, T. Yamakami, I. Nishimura, H. Kometani, H. Ando, K. Hashi, T. Shimizu and H. Ishida, J. Mater. Chem. A, 8, 14472-14481 (2020).

  2. Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using 23Na nuclear magnetic resonance
    R. Morita, K. Gotoh, K. Kubota, S. Komaba, K. Hashi, T. Shimizu and H. Ishida, Carbon, 145, 712-715 (2019). 
  3. States of thermochemically or electrochemically synthesized NaxPy compounds analyzed by solid state 23Na and 31P nuclear magnetic resonance with theoretical calculation
    R. Morita, K. Gotoh, M. Dahbi, K. Kubota, S. Komaba, K. Tokiwa, S. Arabnejad, K. Yamashita, K. Deguchi, S. Ohki, T. Shimizu, R. Laskowski and H. Ishida, J. Power. Sources, 413, 418-424, (2019).
  4. Structure and Dynamic Behavior of Na-crown Ether Complex in the Graphite Layers studied by DFT and 1H NMR, K. Gotoh, S. Kunimitsu, H. Zhang, M. M. Lerner, K. Miyakubo, T. Ueda, H.-J. Kim, Y.-K. Han and H. Ishida, J. Phys. Chem. C122, 10963-10970 (2018).
  5. Structure and Dynamic Behavior of Na-Diglyme Complex in the Graphite Anode of Sodium Ion Battery by 2H Nucler Magnetic Resonance, K. Gotoh, H. Maruyama, T. Miyatou, M. Mizuno, K. Urita, and H. Ishida,  J. Phys. Chem. C, 120, 28152-28156 (2016). 
  6. Enhanced Li-ion accessibility in MXene titanium carbide by steric chloride termination
    S. Kajiyama, L. Szabova, H. Iinuma, A. Sugahara, K. Gotoh, K. Sodeyama, Y. Tateyama, M. Okubo and A. Yamada, Adv. Energy Mater., 2017, 1601873.
  7. Production of a porous carbon material and a carbon-iron oxide hybrid using tubular iron oxide of bacterial origin
    I. Nishimura, K. Gotoh, T.Hiura, H. Kawamura, H. Hasimoto, S. Matsumoto, J. Takada, T. Kasukabe, H. Nishihara, H. Goto, T.Ohkubo and H. Ishida, Tanso, 280, 188-197 (2017).
  8. Combination of solid state NMR and DFT calculation to elucidate the state of sodium in hard carbon electrodes, R. Morita, K. Gotoh, M. Fukunishi, K. Kubota, S. Komaba, T. Yumura, N. Nishimura, K. Deguchi, S. Ohki, T. Shimizu, and H. Ishida, J. Mater. Chem.A, 4, 13183-13193 (2016).
  9. Sodium-Ion Intercalation Mechanism in MXene Nanosheets
    S. Kajiyama, L. Szabova, K. Sodeyama, H. Iinuma, R. Morita, K. Gotoh, Y. Tateyama, M. Okubo, and A. Yamada, ACS Nano, 10, 3334-3341(2016).
  10. Arrangement and Dynamics of Diamine, Etheric, and Tetraalkylammonium Intercalates within Graphene or Graphite Oxide Galleries by 2H NMR  , K. Gotoh, C. Sugimoto, R. Morita, T. Miyatou, M. Mizuno, W. Sirisaksoontorn, M. M. Lerner, and H. Ishida,  J. Phys. Chem. C, 119, 11763-11770 (2015)

  11. In situ7Li nuclear magnetic resonance study of the relaxation effect in practical lithium ion batteries, K. Gotoh, M. Izuka, J. Arai, Y. Okada, T. Sugiyama, K. Takeda and H. Ishida, Carbon, 79, 380-387 (2014).

  12. NMR study for electrochemically inserted Na in hard carbon electrode of sodium ion battery, K. Gotoh, T. Ishikawa, S. Shimazu, N. Yabuuchi, S. Komaba, K. Takeda, A. Goto, K. Deguchi, S. Ohki, K. Hashi, T. Shimizu and H. Ishida, J. Power Sources, 225, 137-140 (2013).

  13. Arrangement and dispersion of Rh and Pt atoms on graphene oxide sheets, K. Gotoh, H. Hashimoto, R. Kawai, Y. Nishina, E. Fujii, T. Ohkubo, A. Itadani, Y. Kuroda and H. Ishida, Chem. Lett., 41(7), 680-682 (2012).

  14. Electrochemical Na Insertion and Solid Electrolyte Interphase for Hard-Carbon Electrodes and Application to Na-Ion Batteries, S. Komaba, W. Murata, T. Ishikawa, N. Yabuuchi, T. Ozeki, T. Nakayama, A. Ogata, K. Gotoh and K. Fujiwara, Adv. Funct. Mater., 21, 3859-3867 (2011).

  15. Exfoliated graphene sheets decorated with metal / metal oxide nanoparticles: simple preparation from cation exchanged graphite oxide, K. Gotoh, T. Kinumoto, E. Fujii, A. Yamamoto, H. Hashimoto, T. Ohkubo, A. Itadani, Y. Kuroda and H. Ishida, Carbon, 49, 1118-1125 (2011).

  16. Properties of a novel hard-carbon optimized to large size Li ion secondary battery studied by 7Li NMR
    K. Gotoh, M. Maeda, A. Nagai, A, Goto, M. Tansho, K. Hashi, T. Shimizu and H. Ishida
    J. Power Sources, 162, 1322-1328 (2006).

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