PhD, Associate Professor, Toshiyuki Yokoi CV


Name in Full: Toshiyuki Yokoi Nationality: Japanese Gender: Male
Business Address: Nanospace Catalysis Unit, Institute of Innovative Research, Tokyo Institute of Technology
4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Phone +81-45-924-5430, Facsimile +81-45-924-5431, E-mail yokoi(at)cat.res.titech.ac.jp

Education

  • April 1996 to March 2000 Yokohama National University, Faculty of Engineering, Division of Materials Science & Chemical Engineering, received Bachelor of Engineering degree March 2000.
  • April 2000 to March 2002 Yokohama National University, Graduate School of Engineering, Division of Materials Science & Chemical Engineering, received Master of Engineering degree March 2002.
  • April 2002 to September 2004 Yokohama National University, Graduate School of Engineering, Division of Materials Science & Chemical Engineering (Doctor course), Obtained Ph.D. of Engineering from Yokohama National University, September 2004. PhD Title: Studies on the syntheses and applications of organic-functionalized mesoporous silica


Employment

  • October 2004 to November 2004: Post Doctoral Fellow Yokohama National University, Prof. Tatsumi group,
  • December 2004 to March 2006: Assistant Professor The University of Tokyo, Department of Chemical System Engineering, Prof. Okubo group,
  • April 2006 to March 2016: Assistant Professor Tokyo Institute of Technology, Chemical Resources Laboratory, Division of Catalytic Chemistry
  • April 2016 to March 2017: Assistant Professor Tokyo Institute of Technology, Institute of Innovative Research, Laboratory for Chemistry and Life Science
  • April 2017 to March 2018: Assistant Professor / Unit Leader Tokyo Institute of Technology, Institute of Innovative Research, Nanospace Catalysis Unit
  • April 2018 to the present: Associate Professor / Unit Leader Tokyo Institute of Technology, Institute of Innovative Research, Nanospace Catalysis Unit
  • 2016-2019 JST-PRESTO Researcher


Short Bio

I received a Ph.D. in 2004 from Yokohama National University, under the supervision of Prof. Tatsumi. Soon afterwards, I became a postdoctoral fellow in his group. Thereafter, I moved to The university of Tokyo and worked as an Assistant Professor of Professor Tatsuya Okubo from 2004 to 2006. I returned to the Tatsumi’s group in Catalytic Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology as an Assistant Professor in 2006.

By the end of 2017, I will publish over 150 refereed papers. I first succeeded in synthesizing mesoporous silica by using anionic surfactant (Nature Mater. , 2004). I also succeeded in preparing the colloidal crystal of silica nanospheres 10 nm in size by using basic amino acids (J. Am. Chem. Soc., 2006, 128, 13664-13665). I developed the preparation of the RTH-type zeolite without using organic-structure-directing agents (Angew. Chem. Int. Ed., 2009, 48, 9884-9887).

Recently, I successfully developed a new catalyst for the MTO reaction with a high performance based on the CON-type zeolite (ACS Catalysis, 2015, 5, 4268-4275). Now, I am tackling the synthesis of zeolite with the T sites in the framework occupied by active elements, e.g., Al atoms, controlled (J. Phys. Chem. C, 2015, 119, 15303-15315).

These achievements were nationally recognized and I was given the Japan Petroleum Institute Award for Encouragement of Research and Development in 2011 and the Catalysis Society of Japan Young Researcher's Award in 2012.

My research has been focused on the synthesis, characterization and various applications of inorganic porous materials such as zeolites and mesoporous materials. I hope to continue my research with the aim of developing new materials and their functions to attain sustainable growth of mankind.



Honors

  • Catalysis Society of Japan Award for Young Researchers (2012)
  • Japan Petroleum Institute Award for Encouragement of Research and Development (2011)


Research Activities

  • Synthesis and Catalytic Applications of Zeolites and Mesoporous Materials
  • Design of Catalytic Reactions toward Green Chemical Synthesis using zeolite catalysts
  • Development of Zeolite Catalysts for Selective Production of Light Olefins by Catalytic Cracking of Naphtha and the MTO reaction
  • Development of Zeolites with the Distribution of Al atoms in the Pores Controlled
  • Characterization of zeolite by advanced SEM (Hitachi SU9000) and solid-state NMR techniques (JEOL ECA600)


Academic Societies

Domestic: The Chemical Society of Japan, The Catalysis Society of Japan, Japan Petroleum Institute, Japan Association of Zeolites, The Society of Chemical Engineers, Japan Overseas: American Chemical Society (ACS), American Institute of Chemical Engineers (AIChE)


International Activities

  1. Vice-Secretary, organizing committee of 8th TOCAT (Tokyo Conference on Advanced Catalytic Science and Technology
    2. 　
  2. Vice-Secretary, organizing committee of ZMPC2018 (International Symposium on Zeolites and Microporous Crystals
  3. Member of organizing committee, ZMPC 2015 (International Symposium on Zeolites and Microporous Crystals), June 28 ~ July 3, 2015, Sapporo, Japan
  4. Member of organizing committee of 5th Gratama Workshop, May 29-June 1, 2013, Tokyo, Japan
  5. Member of organizing committee of Post-symposium ABC-7, “International Workshop on Green and Sustainable Chemistry”, May 16, 2013, Tokyo, Japan.
  6. Member of local organizing committee of ABC-7 (7th International Symposium on Acid-Base Catalysis), May 12-15, 2013, Tokyo, Japan.
  7. Member of local organizing committee, TOCAT 2006 (5th Tokyo Conference on Advanced Catalytic Science and Technology), July.22 ~ July. 28, 2006, Yokohama, Japan


Recent Selected Publications

  1. T. Nishitoba, N. Yoshida, J.N. Kondo and T. Yokoi* “Control of Al Distribution in the CHA-Type Aluminosilicate Zeolites and Its Impact on the Hydrothermal Stability and Catalytic Properties”, Ind. Eng. Chem. Res., 2018, 57,3914-3922.
  2. R. Otomo, T. Nishitoba, R. Osuga, Y. Kunitake, Y. Kamiya, T. Tatsumi, and T. Yokoi*, “Determination of Acid Site Location in Dealuminated MCM-68 by 27Al MQMAS NMR and FT-IR Spectroscopy with Probe Molecules”, J. Phys. Chem. C, 2018, 122, 1180-1191.
  3. T. Biligetu, Y. Wang, T. Nishitoba, R. Otomo, S. Park, H. Mochizuki, J.N. Kondo, T. Tatsumi, T. Yokoi*, “Al distribution and catalytic performance of ZSM-5 zeolites synthesized with various alcohols”, J. Catal., 2017, 353, 1?10.
  4. T. Yokoi*, H. Mochizuki, T. Biligetu, Y. Wang, T. Tatsumi, “Unique Al distribution in the MFI framework and its impact on catalytic properties”, Chem. Lett., 2017, 46, 798-800.
  5. M. HM Ahmed, O. Muraza, M. Yoshioka, T. Yokoi, “Effect of multi-step desilication and dealumination treatments on the performance of hierarchical EU-1 zeolite for converting methanol to olefins”, Microporous and Mesoporous Materials, 2017, 241, 79-88.
  6. R. Otomo, U. Muller, M. Feyen, B. Yilmaz,X. Meng, F.-S. Xiao, H. Gies, X. Bao, W. Zhang, D. de Vos, T. Yokoi, “Development of post-synthetic method for tuning Al content of OSDA-free Beta as catalyst for conversion of methanol to olefins”, Catalysis Science & Technology, 2016, 6, 713-721.
  7. Y. Wang, T. Yokoi, S. Namba, J.N. Kondo, T. Tatsumi, “Improvement of Catalytic Performance of MCM-22 in the Cracking of n-hexane by controlling the acidic property”, J. Catal., 2016, 333, 17-28
  8. R. Otomo, T. Tatsumi, T. Yokoi, “Beta zeolite: a universally applicable catalyst for the conversion of various types of saccharides into furfurals”, Catalysis Science & Technology, 2015, 5, 4001 ? 4007
  9. T. Yokoi, H. Mochizuki, S. Namba, J.N. Kondo, T. Tatsumi “Control of the Al Distribution in the Framework of ZSM-5 Zeolite and Its Evaluation by Solid-state NMR Technique and Catalytic Properties”, J. Phys. Chem. C, 2015, 119, 15303?15315 (DOI: 10.1021/acs.jpcc.5b03289).
  10. M. Yoshioka, T. Yokoi, T. Tatsumi, “Development of the CON-type Aluminosilicate Zeolite and Its Catalytic Application for the MTO Reaction”, ACS Catalysis, 2015, 5, 4268?4275
  11. T. Yokoi, S. Mizno, H. Imai, T. Tatsumi, “Synthesis and structural characterization of Al-containing interlayer-expanded-MWW zeolite with high catalytic performance”, Dalton Transactions, 43 (2014) 10584-10592.
  12. H. Imai, N. Hayashida, T. Yokoi, T. Tatsumi Direct crystallization of CHA-type zeolite from amorphous aluminosilicate gel by seed-assisted method in the absence of organic-structure-directing agents, Microporous and Mesoporous Materials, 196 (2014) 341?348.
  13. M. Liu, T. Yokoi, M. Yoshioka, H. Imai, J. N. Kondo, and T. Tatsumi “Differences in Al distribution and acidic property between RTH-type zeolites synthesized with OSDAs and without OSDAs”, Phys. Chem. Chem. Phys., 2014,16, 4155-4164.
  14. B. Yilmaz, U. Muller, M. Feyen, S. Maurer, H. Zhang, X. Meng, F.-S. Xiao, X. Bao, W. Zhang, H.Imai, T. Yokoi, T. Tatsumi, H. Gies, T. De Baerdemaeker, D. De Vos, “ A new catalyst platform: zeolite Beta from template-free synthesis”, Catalysis Science & Technology, (2013), 3(10), 2580-2586.
  15. M. Yoshioka, T. Yokoi, M. Liu, H. Imai, S. Inagaki, T. Tatsumi, “Preparation of RTH-type zeolites with the amount and/or kind of organic structure-directing agents (OSDA): Are OSDAs indispensable for the crystallization?”, Microporous Mesoporous Mater., 153, 70-78 (2012).
  16. T. Yokoi, Y. Kubota, T. Tatsumi, “Amino-functionalized mesoporous silica as base catalyst and adsorbent”, Applied Catal. A, 421-422, 14-37 (2012). [Review]
  17. T. Yokoi, M. Yoshioka, H. Imai, T. Tatsumi, “Diversification of RTH-Type Zeolite and Its Catalytic Application”, Angew. Chem. Int. Ed., 48, 9884-9887 (2009). [VIP paper]
  18. W. Fan, R.-G. Duan, T. Yokoi, P. Wu, Y. Kubota, T. Tatsumi “Synthesis, Crystallization Mechanism and Catalytic Properties of Ti-rich TS-1 Free of Extraframework Ti Species” J. Am. Chem. Soc., 130, 10150-10164 (2008).
  19. T. Yokoi, Y. Sakamoto, O. Terasaki, Y. Kubota, T. Okubo, T. Tatsumi, “Periodic Arrangement of Silica Nanospheres Assisted by Amino Acids”, J. Am. Chem. Soc., 128, 13664-13665 (2006).
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