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論文・講演・メディア掲載など 研究実績

投稿論文

  • Accelerated Crystallization of LTA Zeolite Using a Combination of High-Silica FAU Zeolite with Low Crystallinity and Additional Al Sources

    Y. Yoshida, Y. Sada, T. Sano, T. Okubo, T. Wakihara Crystal Growth ＆ Design 23, 2231-2238 (2023).

  • Biased Al distribution of high-silica FAU-type zeolite synthesized by fast manner at high temperature

    Y. Sada, S. Miyagi, K. Iyoki, M. Yoshioka, T. Ishikawa, Y. Naraki, T. Sano, T. Okubo, T. Wakihara Microporous and Mesoporous Materials, 344, 112196 (2022).

  • Control of Competitive Structure-Directing Effect in CON-type Zeolite Synthesis via Intermediate Addition Method

    T. Shibuya, K. Iyoki, H. Onozuka, M. Takemoto, S. Tsutsuminai, T. Takewaki, T. Wakihara, T. Okubo Crystal Growth ＆ Design 23, 3509-3517 (2023).

  • Hydrophobicity Manipulation of Titanium-silicalite-1 with Enhanced Catalytic Performance via Liquid-mediated Defect-healing Treatment

    B. Li, K. Iyoki, P. Techasarintr, S. P. Elangovan, R. Simancas, T. Okubo, T. Yokoi, T. Wakihara ACS Catalysis 13, 15155-15163 (2023).

  • Unexpected Low Temperature Activity with Low N 2 O Emission of Stabilized Al-rich Zeolite Beta for Selective Catalytic Reduction of NOx”

    J. Yu, K. Iyoki, S. P. Elangovan, H. Fujinuma, T. Okubo, T. Wakihara Chemistry – A European Journal e202303177, (2023).

  • “Fast Synthesis of CHA-type Zeolite Using Dealuminated Amorphous Aluminosilicates with High Reactivity

    Y. Sada, S. Miyagi, M. Yoshioka, T. Ishikawa, Y. Naraki, T. Sano, T. Okubo, T. Wakihara Chemistry Letters 52, 691-695 (2023).

  • Dealumination of RHO zeolite by acid treatment and recrystallization with organic pore filler

    T. Yoshioka, K. Iyoki, Y Yanaba, T. Okubo, T. Wakihara Journal of the Ceramic Society of Japan, (in Press).

  • Amorphous aluminosilicates as efficient ion exchangers for ammoniumcation removal from aqueous solutions

    R. Simancas, M. Takemura, C.-T. Chen, K. Iyoki, T. Okubo, T. Wakihara Journal of Non-Crystalline Solids , 605, 122172 (2023).

  • Synthesis and thermal stability of SOD-type SAPO-20 via interzeolite conversion of FAU-type SAPO-37 using tetramethylammonium hydroxide and piperidine

    M. Takemoto, Y. Fujikawa, K. Iyoki, N. Tsunoji, T. Sano, T. Okubo, T. Wakihara Journal of the Ceramic Society of Japan, 131, 1-6 (2023)

  • Tracking Sub-Nano-Scale Structural Evolution in Zeolite Synthesis by In Situ High-Energy X-ray Total Scattering Measurement with Pair Distribution Function Analysis

    A. Minami, P. Hu, Y. Sada, H. Yamada, K. Ohara, Y. Yonezawa, Y. Sasaki, Y. Yutaka, M. Takemoto, Y. Yoshida, T. Okubo, T. Wakihara Journal of the American Chemical Society, 144, 23313-23320 (2022)

  • OSDA-free synthesis of zeolite beta: Broadening the methodology for a successful use of the product as a seed

    J. Tomita, S. P. Elangovan, K, Itabashi, A. Chokkalingam, H. Fujinuma, Z. Hao, A, Kanno, K. Hayashi, K. Iyoki, T. Wakihara, T. Okubo Advanced Powder Technology, 33, 103741 (2022).

  • Ultrafast dealumination of *BEA zeolite using a continuous-flow reactor

    A. Minami, M. Takemoto, Y. Yonezawa, Z. Liu, Y. Yanaba, A. Chokkalingam, K. Iyoki, T. Sano, T. Okubo, T. Wakihara Advanced Powder Technology, 33, 103702 (2022).

  • Robust CON-type zeolite nanocatalyst in methanol-to-olefins reaction: downsizing, recrystallisation and defect-healing treatments toward prolonged lifetime

    M. Takemoto, K. Iyoki, Y. Otsuka, H. Onozuka, A. Chokkalingam, T. Yokoi, S. Tsutsuminai, T. Takewaki, T. Wakihara, T. Okubo Materials Advances, 3, 5442-5450 (2022). DOI: 10.1039/D2MA00343K

  • Dealumination of small-pore zeolites through pore-opening migration process with the aid of pore-filler stabilization

    Tatsushi Yoshioka, Kenta Iyoki, Yuusuke Hotta, Yoshihiro Kamimura, Hiroki Yamada, Qiao Han, Takeharu Kato, Craig A. J. Fisher, Zhendong Liu, Ryohji Ohnishi, Yutaka Yanaba, Koji Ohara, Yukichi Sasaki, Akira Endo, Takahiko Takewaki, Tsuneji Sano, Tatsuya Okubo, Toru Wakihara | Science Advances, 8, eabo3093, 2022 DOI: 10.1126/sciadv.abo3093

  • Exploring Hydrothermal Synthesis of SAPO-18 under High Hydrostatic Pressure

    R. Simancas, M. Takemura, Y. Yonezawa, S. Sukenaga, M. Ando, H. Shibata, A. Chokkalingam, K. Iyoki, T. Okubo, T. Wakihara | Nanomaterials | 2022 | volume : 12 | pages : 396

  • Broadening Synthetic Scope of SSZ-39 Zeolite: A Fast and Direct Route from Amorphous Starting Materials

    P. Hu, K. Iyoki, H. Fujinuma, J. Yu, S. Yu, C. Anand, Y. Yanaba, T. Okubo, T. Wakihara | Microporous and Mesoporous Materials | 2022 | volume : 330 | pages : 111583

  • Reduction of Crystal Size of Silicalite-1 Synthesized in Fluoride-Containing Media via Multi-Stage Heating with Intermediate Stirring

    K. Iyoki, T. Onishi, M. Ando, S. Sukenaga, H. Shibata T. Okubo, T. Wakihara | Journal of the Ceramic Society of Japan | | 2022 | volume : 31 | pages : 187-194

  • Revealing Scenarios of Interzeolite Conversion from FAU to AEI through the Variation of Starting Materials

    Z. Liu, A. Chokkalingam, S. Miyagi, M. Yoshioka, T. Ishikawa, H. Yamada, K. Ohara, N. Tsunoji, Y. Naraki, T. Sano, T. Okubo, T. Wakihara | Physical Chemistry Chemical Physics | 2022 | volume : 24 | pages : 4136-4146

  • Engineering Mesopore Formation in Hierarchical Zeolites under High Hydrostatic Pressure

    R. Sato, Z. Liu, C. Peng, C. Tan, P. Hu, J. Zhu, M. Takemura, Y. Yonezawa, H. Yamada, A. Endo, J. García-Martínez, T. Okubo, T. Wakihara | Chemistry of Materials | 2021 | volume : 33 | pages : 8440-8446

  • Tracking the crystallization behavior of high-silica FAU during AEI-type zeolite synthesis using acid treated FAU-type zeolite

    Y. Sada, A. Chokkalingam, K. Iyoki, M. Yoshioka, T. Ishikawa, Y. Naraki, Y. Yanaba, H. Yamada, K. Ohara, T. Sano, T. Okubo, Z. Liu,T. Wakihara | RSC Advances | 2021 | volume : 11 | pages : 23082-23089

  • Reaction Kinetics Regulated Formation of Short-Range Order in an Amorphous Matrix during Zeolite Crystallization

    C.-T. Chen, K. Iyoki, P. Hu, H. Yamada, K. Ohara, S. Sukenaga, M. Ando, H. Shibata, T. Okubo, T. Wakihara | Journal of the American Chemical Society | 2021 | volume : 143 | pages : 10986-10997

  • Recent progress on improvement of hydrothermal stability of zeolites

    R. Simancas, A. Chokkalingam, S. P. Elangovan, Z. Liu, T. Sano, K. Iyoki, T. Wakihara, T. Okubo | Chemical Science | 2021 | volume : 12 | pages : 7677-7695

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