Faculty Members

Professor
OHTANI Masataka

Ph.D., Osaka University

Year of birth: 1982
Gender: Male
Affiliation:

- School of Engineering Science
- School of Environmental Science and Engineering
- Chemistry, Department of Engineering, Graduate School of Enginering
- Research Unit for Advanced Characterization for Future Materials, Center for Nanotechnology, Research Institute
Personal web site: http://www.scsci.kochi-tech.ac.jp/ohtani/
researchmap： https://researchmap.jp/ohtani

Areas of specialization	Physical Chemistry Inorganic Chemistry Polymer Chemistry
Laboratory/research office	Laboratory for Functional Nanomaterials Taking advantage of intermolecular interactions and chemical bonding, we are working to create novel functional nanomaterials composed of various combinations of organic materials, inorganic materials, and macromolecules. In particular, by precisely controlling chemical reactions and equilibriums in terms of physical chemistry, we can develop a new synthetic methodology for achieving beyond the range of conventional approaches. Through our innovations, we open up a new horizon and an opportunity for nanomaterial chemistry to contribute to next-generation energy production and technology.
Current research topics	Taking advantage of intermolecular interactions and chemical bonding, we are working to create novel functional nanomaterials composed of various combinations of organic materials, inorganic materials, and macromolecules. In particular, by precisely controlling chemical reactions and equilibriums in terms of physical chemistry, we can develop a new synthetic methodology for achieving beyond the range of conventional approaches. Through our innovations, we open up a new horizon and an opportunity for nanomaterial chemistry to contribute to next-generation energy production and technology.
Educational background	2010: Doctor, Osaka University, Japan
Professional background	2023-: Professor, School of Engineering Science, Kochi University of Technology 2023: Associate Professor, School of Engineering Science, Kochi University of Technology 2019-2023: Associate Professor, School of Environmental Science and Engineering, Kochi University of Technology 2016-2019: Lecturer, School of Environmental Science and Engineering, Kochi University of Technology 2014-2016: Research Associate, School of Environmental Science and Engineering, Kochi University of Technology 2010-2014: Postdoctoral Researcher, RIKEN 2007-2010: JSPS Research Fellowship for Young Scientists (DC1)
Licenses	Hazardous Materials Engineer's License (Class A), 2018
Academic societies	The Chemical Society of Japan American Chemical Society The Society of Polymer Science The Japanese Photochemistry Association Catalysis Society of Japan Materials Research Society The Chemical Society of Kochi The Society of Chemical Engineers, Japan Chemical Frontier Workshop

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Courses

* Courses provided in English are shown with (E) mark

Undergraduate school	Physical Chemistry Functional Chemistry Catalyst Chemistry Chemical Experiments Chemical Exercise Graduation Thesis
Graduate school	Advanced Physical Chemistry Chemistry Research Proposal 2 Individual Work for Graduate Seminar 1 Seminar 2 Seminar 3 Seminar 4 Advanced Seminar 1 Advanced Seminar 2

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Research activities

Research papers	Authors: Ayano Taniguchi, Yusuke Hiraguri, Reo Minakuchi, Honoka Kajimoto, Asuka Shima, Masataka Ohtani, Kazuya Kobiro Title: Solvothermal Synthesis of Porous FeOx–CeO2−y Composite Spheres with High Mixing Homogeneity Journal: The Journal of Supercritical Fluids, Elsevier Year: 2024 Authors: Takeshi Kato, Ikuho Akiyama, Fumika Mori, Ayumu Shinohara, Yudai Ogura, Akitaka Ito, Masataka OHTANI Title: Boron-imidazolate coordination networks with 3d transition metals for enhanced CO2 adsorption capability Journal: Materials Advances, Royal Society of Chemistry Year: 2024 Authors: Shingo Mizobuchi, Masataka Ohtani, Kazuya Kobiro Title: Contribution of micropores in porous zirconia spheres to high optical transparency of dental resin composites Journal: Dental Materials Journal, The Japanese Society for Dental Materials and Devices Year: 2023 Authors: Hikaru Sakamoto, Masataka Ohtani Title: Direct observation of crystal degradation behaviour in porous crystals under low-dose electron diffraction conditions Journal: Chemical Communications, Vol. 59, pp. 5039-5042, RSC Year: 2023 Authors: Shingo Mizobuchi, Takahiro Kato, Bunichiro Yamada, Kai Kan, Masataka Ohtani, Kazuya Kobiro Title: Influence of the nanostructural characteristics of inorganic fillers on the physical properties of resin cements Journal: Dental Materials Journal, the Japanese Society for Dental Materials and Devises Year: 2023 Authors: Ze-Xing Cai, Yanjie Xia, Yoshikazu Ito, Masataka Ohtani, Hikaru Sakamoto, Akitaka Ito, Yijia Bai, Zhong-Li Wang, Yusuke Yamauchi, Takeshi Fujita Title: General Synthesis of MOF Nanotubes via Hydrogen-Bonded Organic Frameworks toward Efficient Hydrogen Evolution Electrocatalysts Journal: ACS Nano, Vol. 16, pp. 20851-20864, ACS Year: 2022 Authors: Ayano Taniguchi, Rei Miyata, Masataka Ohtani, Kazuya Kobiro Title: Insights into the Solvothermal Reaction for Synthesizing Tin(IV) Oxide Porous Spheres Journal: RSC Advances, Vol. 12, pp. 22902-22910, Royal Society of Chemistry Year: 2022 Authors: Meiliefiana, Tsuzumi Nakayashiki, Emi Yamamoto, Kahoko Hayashi, Masataka Ohtani, Kazuya Kobiro Title: One-Step Solvothermal Synthesis of Ni Nanoparticle Catalysts Embedded in ZrO2 Porous Spheres to Suppress Carbon Deposition in Low-Temperature Dry Reforming of Methane Journal: Nanoscale Research Letters, Vol. 17, p. 47, Springer Nature Year: 2022 Authors: Takaya Kaneshige, Hikaru Sakamoto, Masataka Ohtani Title: Thermal Crystal Phase Transition Zeolitic Imidazolate Frameworks Induced by Nanosizing the Crystal Journal: Chemical Communications, Vol. 58, pp. 4588-4591, Royal Society of Chemistry Year: 2022 Authors: Dung Van Hoang, Anh Tuan Thanh Pham, Truong Huu Nguyen, Hoa Thi Lai, Dai Cao Truong, Thu Bao Nguyen Le, Thuy Dieu Thi Ung, Masataka Ohtani, Vinh Cao Tran, Thang Bach Phan Title: Tailoring orientation of microstructure for improving thermopower factor in Mg-doped CuCrO2 thick films Journal: Applied Physics Letters, Vol. 120, p. 063902, AIP Publishing Year: 2022 Authors: Hikaru Sakamoto, Akitaka Ito, Masataka Ohtani Title: Unusual ligand substitution of a metal-organic framework with distorted metal–ligand coordination Journal: CrystEngComm, Royal Society of Chemistry Year: 2022 Authors: Hikaru Sakamoto, Akitaka Ito, Masataka Ohtani Title: Impact of nanosizing a host matrix based on a metal–organic framework on solid-state fluorescence emission and energy transfer Journal: Materials Advances, Royal Society of Chemistry Year: 2021 Authors: Ayano Taniguchi, Yoshitaka Kumabe, Kai Kan, Masataka Ohtani, Kazuya Kobiro Title: Ce3+-enriched spherical porous ceria with an enhanced oxygen storage capacity Journal: RSC Advances, Vol. 11, pp. 5609-5617, Royal Society of Chemistry Year: 2021 Authors: Kai Kan, Emi Yamamoto, Masataka Ohtani, Kazuya Kobiro Title: Solvothermal Synthesis of Monodisperse Porous Zirconia Spheres with Large Surface Area Journal: Eur. J. Inorg. Chem., Vol. 2020, pp. 4435-4441, Wiley-VCH Year: 2020 Authors: Ze-Xing Cai, Zhong-Li Wang, Yanjie Xia, Hyunsoo Lim, Wei Zhou, Ayano Taniguchi, Masataka Ohtani, Kazuya Kobiro, Takeshi Fujita, Yusuke Yamauchi Title: Tailored Catalytic Nanoframes from Metal–Organic Frameworks by Anisotropic Surface Modification and Etching Journal: Angew. Chem. Int. Ed., Wiley-VCH Year: 2020 Authors: Uyen Tu Thi Doan, Anh Tuan Thanh Pham, Thang Bach Phan, Sungkyun Park, Anh Tuyen Luu, Quang Hung Nguyen, Thai Son Lo, Tran Duy Tap, Masataka Ohtani, Ngoc Kim Pham Title: Abnormal volatile and normal stable bipolar resistive switching characteristics of hybrid nanocomposites: Morphology–defects–property ‘Relationship Journal: J. Alloys Compd, Vol. 857, p. 157602, Elsevier Year: 2020 Authors: Yoshitaka Kumabe, Hitomi Taga, Kai Kan, Masataka Ohtani, Kazuya Kobiro Title: Porous Niobia Spheres with Large Surface Area: Alcothermal Synthesis and Controlling of Their Composition and Phase Transition Behaviour Journal: RSC Advances, Vol. 10, pp. 14630-14636, Royal Society of Chemistry Year: 2020 Authors: Kai Kan, Daiki Morito, Yuri Matsumoto, Kanami Masuda, Masataka Ohtani, Kazuya Kobiro Title: Nanoscale Effect of Zirconia Filler Surface on Mechanical Tensile Strength of Polymer Composites Journal: Nanoscale Research Letters, Vol. 15, p. 51, Springer Nature Year: 2020 Authors: Le Ngoc Long, Pham Tan Thi, Pham Trung Kien, Pham Thanh Trung, Masataka Ohtani, Yoshitaka Kumabe, Hirofumi Tanaka, Shigenori Ueda, Hyoyoung Lee, Phan Bach Thang, Tran Van Khai Title: Controllable Synthesis of MoS2/Graphene Low-Dimensional Nanocomposites and Their Electrical Properties Journal: Appl. Surf. Sci., Vol. 504, No. 28, p. 144193, Elsevier Year: 2019 Authors: Hien Thi Thu Nguyen, Yoshitaka Kumabe, Shigenori Ueda, Kai Kan, Masataka Ohtani, Kazuya Kobiro Title: Highly Durable Ru Catalysts Supported on CeO2 Nanocomposites for CO2 Methanation Journal: Appl. Cat., A., Vol. 577, pp. 35-43, Elsevier Year: 2019 Authors: Yuri Tanaka, Hiroyuki Usui, Yasuhiro Domi, Masataka Ohtani, Kazuya Kobiro, Hiroki Sakaguchi Title: Mesoporous Spherical Aggregates Consisted of Nb-Doped Anatase TiO2 Nanoparticles for Li and Na Storage Materials Journal: ACS Applied Energy Materials, ACS Publications Year: 2018 Authors: Nguyen Thi Thu Hien, Masataka Ohtani, Kazuya Kobiro Title: One-pot synthesis of SiO2‒CeO2 nanoparticle composites with enhanced heat tolerance Journal: Microporous and Mesoporous Materials, Vol. 273, pp. 35-40, Elsevier Year: 2018 Authors: Duriyasart Farkfun, Akito Irizawa, Kahoko Hayashi, Masataka Ohtani, Kazuya Kobiro Title: Sintering‐Resistant Metal Catalysts Supported on Concave‐Convex Surface of TiO₂ Nanoparticle Assemblies Journal: ChemCatChem, Vol. 10, No. 16, pp. 3392-3396, Wiley-VCH Year: 2018 Authors: Yoshitaka Kumabe, Masataka Ohtani, Kazuya Kobiro Title: Rapid one-pot synthesis of ultrafine titania nanocrystals and their conversion into transparent mesoporous thin layer films Journal: Microporous and Mesoporous Materials, Vol. 261, pp. 207-213, Elsevier Year: 2017 Authors: Masataka Ohtani, Tomoyuki Muraoka, Yuki Okimoto, Kazuya Kobiro Title: Rapid One-Pot Solvothermal Batch Synthesis of Porous Nanocrystal Assemblies Composed of Multiple Transition-Metal Elements Journal: Inorganic Chemistry, Vol. 56, No. 19, pp. 11546-11551, American Chemical Societ Year: 2017 Authors: Duriyasart Farkfun, Masataka Ohtani, Jun-Seok Oh, Akimitsu Hatta, Kazuya Kobiro Title: A new approach to surface activation of porous nanomaterials using non-thermal helium atmospheric pressure plasma jet treatment Journal: Chem. Commun., Vol. 53, pp. 6704-6707, Royal Society of Chemistry Year: 2017 Authors: Ellawala Kankanamge Chandima Pradeep, Masataka Ohtani, Toshiyuki Kawaharamura, Kazuya Kobiro Title: Single-step Simple Solvothermal Synthetic Approach to Ultra-fine MgO Nanocrystals using High-temperature and High-pressure Acetonitrile Journal: Chem. Lett., Vol. 46, pp. 940-943, The Chemical Society of Japan Year: 2017 Authors: Hien Thi Thu Nguyen, Teppei Habu, Masataka Ohtani, Kazuya Kobiro Title: One-step Direct Synthesis of SiO2-TiO2 Composite Nanoparticle Assemblies with a Hollow Spherical Morphology Journal: Eur. J. Inorg. Chem., pp. 3017-3023, Wiley-VCH Year: 2017 Authors: Ryoichi Matsui, Noriyuki Uchida, Masataka Ohtani, Kuniyo Yamada, Arisu Shigeta, Izuru Kawamura, Takuzo Aida, Yasuhiro Ishida Title: Magnetically Alignable Bicelles With Unprecedented Stability Using Tunable Surfactants Derived From Cholic Acid Journal: ChemPhysChem, Vol. 17, No. 23, pp. 3916-3922, Wiley-VCH Year: 2016 Authors: Masataka Ohtani, Kazutaka Takase, Wang Pengyu, Kouki Higashi, Kimiyoshi Ueno, Nobuhiro Yasuda, Kunihisa Sugimoto, Mamoru Furuta, Kazuya Kobiro Title: Water-triggered Macroscopic Structural Transformation of a Metal–organic Framework Journal: CrystEngComm, Vol. 18, pp. 1866-1870, Royal Society of Chemistry Year: 2016 Authors: Duriyasart Farkfun, Hiromu Hamauzu, OHTANI Masataka, KOBIRO Kazuya Title: Three-Dimensionally Branched Titanium Dioxide with Cheek-Brush Morphology: Synthesis and its Application to Polymer Composites Journal: ChemistrySelect, Vol. 1, pp. 5121-5128 Year: 2016 Authors: Ellawala Kankanamge Chandima Pradeep, Masataka Ohtani, Kazuya Kobiro Title: A Simple Synthetic Approach to Al2O3–TiO2 and ZnO–TiO2 Mesoporous Hollow Composite Assemblies Consisting of Homogeneously Mixed Primary Particles at the Nano Level Journal: Eur. J. Inorg. Chem., pp. 5621-5627, Wiley-VCH Year: 2015 Authors: Ryoichi Matsui, Masataka Ohtani, Kuniyo Yamada, Takaaki Hikima, Masaki Takata, Takashi Nakamura, Hiroyuki Koshino, Yasuhiro Ishida, Takuzo Aida Title: Chemically Locked Bicelles with High Thermal and Kinetic Stability Journal: Angew. Chem. Int. Ed., Vol. 54, pp. 13284-13288, Wiley-VCH Year: 2015 Authors: Ellawala Kankanamge Chandima Pradeep, Teppei Habu, Hiroko Tohriyama, Masataka Ohtani, Kazuya Kobiro Title: Ultra-simple Synthetic Approach to the Fabrication of CeO2-ZrO2 Mixed Nanoparticles into Homogeneous, Domain, and Core-shell Structures in Mesoporous Spherical Morphologies using Supercritical Alcohols Journal: J. Supercrit. Fluids, Vol. 97, pp. 217-223, Elsevier Year: 2014 Authors: Masataka Ohtani, Yuki Okimoto, Yuya Ohishi, Kazuya Kobiro Title: Insight into Alcohol Reduction by Saccharides and Their Homologues in Supercritical Water via Aldehyde-mediated Radical Formation Journal: J. Supercrit. Fluids, Vol. 98, pp. 147-152, Elsevier Year: 2014 Authors: Wang Pengyu, Hiroko Tohriyama, Kazuya Yokoyama, Masataka Ohtani, Haruyasu Asahara, Tomoya Konishi, Nagatoshi Nishiwaki, Masahiko Shimoda, Yoshiyuki Yamashita, Hideki Yoshikawa, Kazuya Kobiro Title: Smart Decoration of Mesoporous TiO2 Nanospheres with Noble Metal Alloy Nanoparticles into Core–Shell, Yolk–Core–Shell, and Surface-Dispersion Morphologies Journal: Eur. J. Inorg. Chem., pp. 4254-4257, Wiley-VCH Year: 2014 Authors: Linlin Wu, Masataka Ohtani, Masaki Takata, Akinori Saeki, Shu Seki, Yasuhiro Ishida, Takuzo Aida Title: Magnetically Induced Anisotropic Orientation of Graphene Oxide Locked by in Situ Hydrogelation Journal: ACS Nano, Vol. 8, No. 5, pp. 4640-4649, ACS Year: 2014 Authors: Linlin Wu, Masataka Ohtani, Shingo Tamesue, Yasuhiro Ishida, Takuzo Aida Title: High Water Content Clay-Nanocomposite Hydrogels Incorporating Guanidinium-Pendant Methacrylamide: Tuning of Mechanical and Swelling Properties by Supramolecular Approach Journal: Journal of Polymer Science Part a-Polymer Chemistry, Vol. 52, No. 6, pp. 839-847, Wiley-VCH Year: 2014 Authors: Shingo Tamesue, Masataka Ohtani, Kuniyo Yamada, Yasuhiro Ishida, Jason M. Spruell, Nathaniel A. Lynd, Craig J. Hawker, Takuzo Aida Title: Linear versus Dendritic Molecular Binders for Hydrogel Network Formation with Clay Nanosheets: Studies with ABA Triblock Copolyethers Carrying Guanidinium Ion Pendants Journal: Journal of the American Chemical Society, Vol. 135, No. 41, pp. 15650-15655, ACS Year: 2013 Authors: Masataka Ohtani, Shunichi Fukuzumi Title: Photoelectrochemical Cell Based on Cup-Shaped Nanocarbon-Fullerene Composite Nanocluster Film: Enhancement of Photocurrent Generation by Cup-Shaped Nanocarbons as an Electron Transporter Journal: Fullerenes Nanotubes and Carbon Nanostructures, Vol. 18, No. 3, pp. 251-260 Year: 2010 Authors: Masataka Ohtani, Shunichi Fukuzumi Title: Photoelectrochemical properties of donor-acceptor nanocomposite films composed of porphyrin-functionalized cup-shaped nanocarbon materials Journal: J. Porphyrins Phthalocyanines, Vol. 14, No. 5, pp. 452-458 Year: 2010 Authors: Masataka Ohtani, Prashant V. Kamat, Shunichi Fukuzumi Title: Supramolecular donor-acceptor assemblies composed of carbon nanodiamond and porphyrin for photoinduced electron transfer and photocurrent generation Journal: J. Mater. Chem., Vol. 20, pp. 582-587, Royal Society of Chemistry Year: 2009 Authors: Masataka Ohtani, Kenji Saito, Shunichi Fukuzumi Title: Synthesis, Characterization, Redox Properties, and Photodynamics of Donor-Acceptor Nanohybrids Composed of Size-Controlled Cup-Shaped Nanocarbons and Porphyrins Journal: Chem. Eur. J., Vol. 15, No. 36, pp. 9160-9168, Wiley-VCH Year: 2009 Authors: Masataka Ohtani, Shunichi Fukuzumi Title: Solubilization and photoinduced electron transfer of single-walled carbon nanotubes wrapped with coenzyme Q10 Journal: Chem. Commun., pp. 4997-4999, Royal Society of Chemistry Year: 2009 Authors: Kenji Saito, Masataka Ohtani, Shunichi Fukuzumi Title: Nanostructural control of cup-stacked carbon nanotubes with 1-benzyl-1,4-dihydronicotinamide dimer via photoinduced electron transfer Journal: Chem. Commun., pp. 55-57, Royal Society of Chemistry Year: 2006 Authors: Kenji Saito, Masataka Ohtani, Shunichi Fukuzumi Title: Electron-transfer reduction of cup-stacked carbon nanotubes affording cup-shaped carbons with controlled diameter and size Journal: J. Am. Chem. Soc., Vol. 128, No. 44, pp. 14216-14217, ACS Publications Year: 2006
Awards	CSJ Presentation Award 2016, The Chemical Society of Japan, 2016 ISHA 2016 Best Poster Award, 5th International Solvothermal and Hydrothermal Association Conference, 2016 CSJ Presentation Award 2012, The Chemical Society of Japan, 2012
Grants-in-Aid for Scientific Research from the Japanese government	Project title: Precise polymerization controlled by electrochemical switching of surface reactive species toward a functional organic thin-film material Category: Grant-in-Aid for Young Scientists (B) Project number: 25810120 Project period: 2013-2014 Total budget amount: 4,290,000 yen Keywords: Project title: Development of Rapid One-pot Synthetic Method for Inorganic Nanosheet and Their Application Category: Grant-in-Aid for Young Scientists (B) Project number: 17K14858 Project period: 2017-2018 Total budget amount: 4,160,000 yen Keywords: Project title: Demonstration of nano-size and morphology effect on a coordination polymer nanorystal Category: Grant-in-Aid for Scientific Research (C) Project number: 19K05186 Project period: 2019-2021 Total budget amount: 4,290,000 yen Keywords: Project title: isualization of the coordination nanospace by using electron-diffraction structural analysis Category: Grant-in-Aid for Scientific Research (C) Project number: 22K04857 Project period: 2022-2024 Total budget amount: 4,160,000 yen Keywords:

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