Studying Chemistry in Okinawa!CurriculumFaculty

Tessui Nakagawa

1. Hydrogen storage material, Inorganic chemistry, Spectroscopy

2. Name : Tessui Nakagawa

3. E-mail : tessui<at>sci.u-ryukyu.ac.jp

4. Phone : +81-98-895-8535

5. Facsimile : +81-98-895-8565

6. Website :http://www.cc.u-ryukyu.ac.jp/~tessui/HE-Lab/

7. Education :

Education, research and professional experience with research topics:

2012-2012 Assistant professor

Chemistry group, Department of Chemistry, Biology, and Marine Science, Faculty of Science, University of the Ryukyus
Worked on the project: Improvement of hydrogen storage materials to realize Okinawa “hydrogen” islands

2012-2012 Postdoc

Energy conversion laboratory, Graduate school of System and Information Engineering, Tsukuba University
Supervisor: Prof. Masayoshi Ishida and Assistant Prof. Nobuko Hanada
Worked on the project: Clarification of CO2 poisoning mechanism on AB5-type hydrogen storage alloys

2012-2009 Postdoc

Material Chemistry, Materials, Physics, and Applications division, Los Alamos National Laboratory, USA

Supervisors:

Dr. Anthony K. Burrell (2009-2011)

Rico E. Del Sesto, Benjamin L. Davis, and Troy A. Semelsberger (2011-2012)

Worked on the project:

Regeneration of ammonia borane (AB; NH3BH3) and related materials

Basic research and catalytic effect for AB-ionic liquid (IL) for the liquid fuel

Catalytic and confinement effect for AB- metal organic frameworks (MOF)

Improvement and clarifying reaction mechanism of AB-IL-MOF mixture

Creation of new Metal amidoborate (M(NH2BH3)n、M = Li, K, Ca, Na, etc) and clarification of their hydrogen storage properties

2009-2009 Postdoc

Institute for Advanced Materials Research, Hiroshima University, Japan
Supervisor: Prof. Yoshitsugu Kojima
Worked on the project: Clarification of hydrogenation mechanism on the
Metal-B-H systems

2009-2006 Doctral Degree (Ph.D: Chemical Physics and Material Science)

Department of Quantum Matter, Graduate School of Advanced Science of Matter, Hiroshima University, Japan
Supervisor: Prof. Yoshitsugu Kojima
Worked on the project: Studies of hydrogen storage properties on the
Metal-B-H systems

2006-2004 Masters Degree (M.S.: Chemical Physics and Material Science)

Department of Quantum Matter, Graduate School of Advanced Science of Matter, Hiroshima University, Japan
Supervisor: Prof. Hironobu Fujii
Worked on the project: Studies of hydrogen storage properties on the
Metal-N-H systems (2005-2004) and Metal-B-H systems (2005)

2004-2000 Bachelors Degree (Physics: Condensed Matter)

Department of Physical Sciences Faculty of Science, Hiroshima University, Japan
Supervisor: Prof. Toshiro Takabatake (research field: magnetic matter)
Worked on the project: Magnetic, Thermal, Transport and Structural
Studies on YbGaGe

8. Research Interests :

– Everything is the hydrogen storage materials if it can release hydrogen by any methods –
Establishment of hydrogen storage technique is an important issue for realizing the hydrogen society. Cost, energy efficiency, and estimated amount of deposit are the critical issue for commercializing the hydrogen storage materials, but there is almost no material which satisfies all requirements.

Our goal is to realize hydrogen society and, therefore, we aim to establish Okinawa “hydrogen” islands as the first step. For the sake, we research hydrogen storage materials for commercializing by means of basic and application sides. We also keep an eye on the hydrogen production and utilization for quick and well-optimized commercialization of the hydrogen storage materials.

Our topics are:

Regeneration of ammonia borane (AB; NH3BH3)

Basic research and clarification of dehydrogenation mechanism on AB-ionic liquid (IL)

Improvement and regeneration of Metal amidoborate (M(NH2BH3)n、M = Li, K, Ca, etc.)

Improvement of hydrogen storage materials for the EV range extender

Improvement of hydrogen storage materials for the fuel cell as a stationary and/or emergency electric generator

9. Publications

  1. “Synthesis, structural characterization, and hydrogen desorption properties of Na[Al(NH2BH3)4] ” Yuki Nakagawa, Keita Shinzato, Tessui Nakagawa, Keita Nakajima, Shigehito Isobe, Kiyotaka Goshome, Hiroki Miyaoka, Takayuki Ichikawa, Int. J. Hydrogen Energy 42 (2017) 6173-6180.
  2. “Effect of CO2 on hydrogen absorption in Ti-Zr-Mn-Cr based AB2 type alloys” Nobuko Hanada, Hirotaka Asada, Tessui Nakagawa, Hiroki Higa, Masayoshi Ishida, Daichi Heshiki, Tomohiro Toki, Itoko Saita, Kohta Asano, Yumiko Nakamura, Akitoshi Fujisawa, abd Shinichi Miura, J. Alloys. Compd. 705 (2017) 507-516.
  3. “Dependence of constituent elements of AB5 type metal hydrides on hydrogenation degradation by CO2 poisoning” Nobuko Hanada, Tessui Nakagawa, Hirotaka Asada, Masayoshi Ishida, Keisuke Takahashi, Shigehito Isobe, Itoko Saita, Kohta Asano, Yumiko Nakamura, Akitoshi Fujisawa, Shinichi Miura, J. Alloys. Compd. 647 (2015) 198-203.
  4. ”Physical, structural, and dehydrogenation properties of ammonia borane in ionic liquids” Tessui Nakagawa, Anthony K. Burrell, Rico E. Del Sesto, Michael T. Janicke, Adam L. Nekimken, Geraldine M. Purdy, Biswajit Paik, Rui-Qin Zhong, Troy A. Semelsberger, and Benjamin L. Davis, RSC Adv.,  (2014) 21681-21687.
  5. “Microstructure and hydrogen desorption characteristics of hydrogenated ScH2MBn (M = Mg and Ca) systems synthesized by mechanical milling”, Tessui Nakagawa, Takayuki Ichikawa, Keiji Shimoda, Masami Tsubota, Hiroki Miyaoka, Shigehito Isobe, Tetsuo Homma, Shinji Michimura, Fumitoshi Iga, Somei Ohnuki, and Yoshitsugu Kojima, Int. J. Hydrogen Energy 38 (2013) 6744-6749.
  6. “A Comparative Study of Structural Changes in NH3BH3, LiNH2BH3, and KNH2BH3 During Dehydrogenation Process”, Keiji Shimoda, Koichi Doi, Tessui Nakagawa, Yu Zhang, Hiroki Miyaoka, Takayuki Ichikawa, Masataka Tansho, Tadashi Shimizu, Anthony K. Burrell, and Yoshitsugu Kojima, J. Phys. Chem. C, 2012, 116, 5957-5964.
  7. “Improved hydrogen release from ammonia-borane with ZIF-8″, Rui-Qin Zhong, Ru-Qiang Zou, Tessui Nakagawa, Michael Janicke, Troy A. Semelsberger, Anthony K. Burrell, and Rico E. Del Sesto, Inorg. Chem., 2012, 51, 2728-2730.
  8. “Regeneration of Ammonia Borane Spent Fuel by Direct Reaction with Hydrazine and Liquid Ammonia”, Andrew D. Sutton, Anthony K. Burrell, David A. Dixon, Edward B. Garner III, John C. Gordon, Tessui Nakagawa, Kevin C. Ott, J.Pierce Robinson, and Monica Vasiliu, Science, 2011, 331, 1426-1429.
  9.  “Potassium(I) amidotrihydroborate: Structure and Hydrogen Release”, Himashinie V.K. Diyabalanage, Tessui Nakagawa, Roshan P. Shrestha, Troy A. Semelsberger, Benjamin L. Davis, Brian L. Scott, Anthony K. Burrell, William I.F. David, Kate R. Ryan, Martin Owen Jones, and Peter P. Edwards, J. Am. Chem. Soc., 2010, 132, 11836-11837.
  10.  “X-ray Absorption Spectroscopic Study on Valence State and Local Atomic Structure of Transition Metal Oxides Doped in MgH2″, Nobuko Hanada, Takayuki Ichikawa, Shigehito Isobe, Tessui Nakagawa, Kazuhiko Tokoyoda, Tetsuo Honma, Hironobu Fujii, and Yoshitsugu Kojima, J. Phys. Chem. C, 2009, 113, 13450-13455.
  11.  Simultaneous structure and carrier tuning of dimorphic clathrate Ba8Ga16Sn30″, Koichiro Suekuni, Marcos A Avila, Kazunori Umeo, Hiroshi Fukuoka, Shoji Yamanaka, Tessui Nakagawa, and Toshiro Takabatake, Phys. Rev. B, 2008, 77, 235119(1)-235119(8).
  12.  Thermal analysis on the Li-Mg-B-H systems”, Tessui Nakagawa, Takayuki Ichikawa, Nobuko Hanada, Yoshitsugu Kojima, and Hironobu Fujii, J. Alloys Compd., 2007, 446-447, 306-309.
  13. “Gas emission properties of the MgHx-Zn(BH4)2 systems”, Tessui Nakagawa, Takayuki Ichikawa, Yoshitsugu Kojima, and Hironobu Fujii, Mater. Trans., 2007, 48, 556-559.
  14. “Observation of Hydrogen Absorption/Desorption Reaction Processes in Li-Mg-N-H System by in-situ X-Ray Diffractmetry”, Tessui Nakagawa, Takayuki Ichikawa, Ryo Ida, Haiyan Leng, Nobuhiko Takeichi, Tetsu Kiyobayashi, Hiroyuki Takeshita, and Hironobu Fujii, J. Alloys Compd., 2007, 430, 217-221.
  15. “Mechanism of Hydrogenation Reaction in Li-Mg-N-H System”, Haiyan Leng, Takayuki Ichikawa, Satoshi Hino, Tessui Nakagawa, and Hironobu Fujii, Journal of Physical Chemistry B, 109 (2005) 10744- 10748.
  16. “Divalent state in YbGaGe: magnetic, thermal, transport and structural studies” Yuji Muro, Tessui Nakagawa, Kazunori Umeo, Masakazu Itoh, Takashi Suzuki, and Toshiro Takabatake, J. Phys. Soc. Jpn., 2004, 73(6), 1450-1452.
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