Function creation and device development based on polar field of nanosheet hybrid

• Project/Area Number: 17H01200
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional solid state chemistry
• Research Institution: Kumamoto University
• Principal Investigator: 速水 真也 熊本大学, 大学院先端科学研究部(理), 教授 (30321912)
• Project Period (FY): 2017-04-01 – 2022-03-31
• Project Status: Granted (Fiscal Year 2020)
• Budget Amount: ¥43,940,000 (Direct Cost: ¥33,800,000、Indirect Cost: ¥10,140,000); Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2018: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000); Fiscal Year 2017: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
• Keywords: ナノシート / ハイブリッド / 極性場 / 酸化グラフェン / 磁性 / 伝導性 / 誘電性 / バイオマス / 触媒反応 / 多機能性 / 極性物性 / プロトン伝導 / 電子伝導 / 機能創製 / デバイス開発

Outline of Annual Research Achievements

これまでにGOナノシートおよびGOペーパーのプロトン伝導が、1 × 10-2 S cm-1程度のNafionに匹敵する非常に高いプロトン伝導度を示すことを世界に先駆けて発見し、またそれらのキャパシタ特性の発現も見出した。これらはいずれもGOナノシートの酸素官能基を経由するプロトン伝導によることも明らかにしている。またGOは、グラファイトを酸化して合成するため、グラフェン表面に酸素官能基が付加して負電荷・親水性のため様々なカチオン性の物質とハイブリッドを形成する。
GOハイブリッドにおいて、プロトン伝導性の向上と付加的な多機能性、例えば磁性や伝導性あるいは誘電性などの機能性を発現させた。GO-金属イオンやGO-金属錯体のハイブリッドを静電的な相互作用により容易にハイブリッドを合成し、これらのGOにおけるプロトン伝導や発光特性と金属イオンや金属錯体におけると磁性、伝導性、誘電性、発光特性などをハイブリッドさせることにより多重機能性を協奏的に発現させた。rGOは伝導性や強磁性を示すため、金属イオンや金属錯体との協奏的多重機能性を発現させた。
またGO単体の触媒反応は酸化メカニズムで起こるが、その効率や多機能性を持たせるため、GOハイブリッドにおける触媒材料の開発は非常に重要である。例えばGO-金属イオンのハイブリッドを還元するとGO-金属酸化物ナノ粒子あるいは金属ナノ粒子のハイブリッドが形成され、それらは特異的な触媒能でセルロースの分解を行い、GO単体に比べて優れた触媒能を発現する。またGO-金属錯体のハイブリッドでは触媒能の増大のみならず、POMなどを用いた場合には、様々な触媒反応も同時に行うことが可能であり、多機能性の触媒材料を開発することを目指した。
今回はGOハイブリッドにおける多重機能の発現およびバイオマス触媒反応における高効率化に成功した。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

これまでの研究結果は、GOナノシートに関して、その酸素官能基を用いたハイブリッド化に焦点を当て研究を推進している。これまでは、その界面を利用した、発光、誘電的性質、磁性、電気化学特性、光電気化学特性、光触媒についての基礎的研究にとどまっていた。特にナノシートのハイブリッド化における相互作用の見積もりなどについてはほとんど研究されていない。本研究では、ナノシートハイブリッドの特異的物性発現やバイオマス触媒反応において興味深い研究結果が得られた。
これまでの進捗状況としては、
①新規ナノシートおよびハイブリッドの合成では、磁性体ナノ粒子とのハイブリッド化のほか、新たな材料開発として液中パルスプラズマを用いた化学修飾に成功した。
②ハイブリッドにおける基礎物性のみならず、バイオマス触媒反応において高効率な触媒反応に成功した。
以上のことを考慮するとおおむね順調に進展していると考えられる。

Strategy for Future Research Activity

様々な金属イオンや金属錯体の選択が重要であり、多重機能性を目指したrGOハイブリッドの開発を行う。またrGOは還元法によりp型あるいはn型の半導体特性を示すため、p型あるいはn型の特異性さらにはpn接合による光触媒の開発などを詳細に検討する。
MO、MOHおよびMナノシートハイブリッドにおいても同様に、pn接合を目指す。例えば、結晶構造の異なるp型、n型半導体材料をもちいて結晶方位をそろえて、かつ、接合界面でアモルファス層を含まない2nm以下のヘテロpn接合を作成しようとすると、通常の半導体デバイス形成置（CVD法、ALD法、MBE法）ではその構造を作製できない。しかしながらナノシート張り合わせ技術を用いると、大気中でもそのようなデバイス構造を形成できる。我々はナノシートpn接合技術を保有しており、本研究では１nm以下といったpn接合の限界膜厚に挑戦し、その接合体の光エネルギー変換特性を様々なアプローチで評価していく予定である。このようなデバイス構造もナノシートだからこそ達成できる構造であり、もし実現できれば世界で最も薄いpn接合デバイスを創成できると期待している。
また世界で初めて、赤、緑、青に蛍光を示す厚さ0.9nm～1.4nmのMOナノシートの合成を試みている。本研究では、上記に説明したナノシートpn接合技術を用いて、発光ナノシートを発光層とした、発光デバイスも開発する。
その他、ナノシートハイブリッドにおいて極性場特有の磁性、弾性、伝導性あるいは磁気抵抗などの機能探索を行うと同時にデバイス作成も行う。

Research Products

• [Int'l Joint Research] シドニー大学/シドニー西大学(オーストラリア)
• [Int'l Joint Research] キョンポク大学(韓国)
• [Int'l Joint Research] University of Sydney/The University of Queensland(オーストラリア)
• [Int'l Joint Research] Shahjalal University(バングラデシュ)
• [Int'l Joint Research] Federal University of Agriculture/University of Ilorin(ナイジェリア)
• [Int'l Joint Research] Shahjalal University(Bangladesh)
• [Int'l Joint Research] Kyungpook National University(Korea)
• [Int'l Joint Research] The University of Sydney/The University of Queensland(Australia)
• [Int'l Joint Research] Dalian University of Technology(China)
• [Journal Article] Effects of a strong gravitational field on Mn-trimeres and magnetic properties of hexagonal YMnO3 single crystal. (2019)
  • Author(s): Tokuda, M., Nishiyama, T., Yoshiasa, A.ほか4名
  • Journal Title: Journal of Physics and Chemistry of Solids Volume: 129 Pages: 172-179
  • DOI: 10.1016/j.jpcs.2018.12.023
  • Peer Reviewed
• [Journal Article] Consecutive oxidative additions of iodine on undulating 2D coordination polymers: Formation of I-Pt-I chains and inhomogeneous layers (2019)
  • Author(s): Ryo Ohtani, Riho Yamamoto, Hiroyoshi Ohtsu, Masaki Kawano, Jenny Pirillo, Yuh Hijikata, Masaaki Sadakiyo, Leonard F. Lindoye, and Shinya Hayami
  • Journal Title: Dalton Transactions Volume: 印刷中 Pages: 7198-7202
  • DOI: 10.1039/c8dt04624g
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Synthesis, structure and magnetic properties of manganese(II) and cobalt(II) coordination polymers with bis(4-pyridyl)benzylamine (2019)
  • Author(s): Kim Su Young、Jeong Ah Rim、Komatsumaru Yuki、Hayami Shinya、Min Kil Sik
  • Journal Title: Journal of Inclusion Phenomena and Macrocyclic Chemistry Volume: 94 Pages: 167-174
  • DOI: 10.1007/s10847-019-00890-1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interaction of 2-furanylmethyl- and 2-thienylmethyl-amide derivatives of 1,3-di(carboxymethyl)calix[4]arene with metal salts (2019)
  • Author(s): Noamane Mohamed Habib、Ben Othmen Amel、Al-Ayed Abdullah Sulaiman、Kim Yang、Hayami Shinya、Hamdi Abdelwaheb
  • Journal Title: Journal of Inclusion Phenomena and Macrocyclic Chemistry Volume: 94 Pages: 249-256
  • DOI: 10.1007/s10847-019-00908-8
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Phosphorescence at Low Temperature by External Heavy‐Atom Effect in Zinc(II) Clusters (2019)
  • Author(s): Kobayashi Fumiya、Ohtani Ryo、Teraoka Saki、Yoshida Masaki、Kato Masako、Zhang Yingjie、Lindoy Leonard F.、Hayami Shinya、Nakamura Masaaki
  • Journal Title: Chemistry ? A European Journal Volume: 25 Pages: 5875-5879
  • DOI: 10.1002/chem.201900343
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Weak ferromagnetism derived from spin canting in an amido-bridged homochiral Mn(iii) 1-D coordination polymer (2019)
  • Author(s): Kusumoto Sotaro、Koga Atsushi、Kobayashi Fumiya、Ohtani Ryo、Kim Yang、Lindoy Leonard F.、Hayami Shinya、Nakamura Masaaki
  • Journal Title: Dalton Transactions Volume: 48 Pages: 8617-8622
  • DOI: 10.1039/c9dt00593e 10.1039/C9DT00593E
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A procession on photocatalyst for solar fuel production and waste treatment (2019)
  • Author(s): Rabin Nurun Nahar、Ohmagari Hitomi、Islam Md. Saidul、Karim Mohammad Razaul、Hayami Shinya
  • Journal Title: Journal of Inclusion Phenomena and Macrocyclic Chemistry Volume: 印刷中 Pages: 263-281
  • DOI: 10.1007/s10847-019-00889-8
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Water‐Induced Breaking of the Coulombic Ordering in a?Room‐Temperature Ionic Liquid Metal Complex (2019)
  • Author(s): Hiraoka Tomoaki、Ohtani Ryo、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Chemistry A European Journal Volume: 25 Pages: 7521-7525
  • DOI: 10.1002/chem.201900069
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Slow Magnetic Relaxation Triggered by a Structural Phase Transition in Long-Chain-Alkylated Cobalt(II) Single-Ion Magnets (2019)
  • Author(s): Kobayashi Fumiya、Ohtani Ryo、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Inorganic Chemistry Volume: 58 Pages: 7409-7415
  • DOI: 10.1021/acs.inorgchem.9b00543
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ferroelectric metallomesogens composed of achiral spin crossover molecules (2019)
  • Author(s): Akiyoshi Ryohei、Hirota Yuma、Kosumi Daisuke、Tsutsumi Mayu、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Chemical Science Volume: 10 Pages: 5843-5848
  • DOI: 10.1039/c9sc01229j
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Pressure Effects with Incorporated Particle Size Dependency in Graphene Oxide Layers through Observing Spin Crossover Temperature (2019)
  • Author(s): Kitayama Hikaru、Akiyoshi Ryohei、Nakamura Masaaki、Hayami Shinya
  • Journal Title: Magnetochemistry Volume: 5 Pages: 26-26
  • DOI: 10.3390/magnetochemistry5020026
  • Peer Reviewed
• [Journal Article] A mixed-spin spin-crossover thiozolylimine [Fe4L6]8+ cage (2019)
  • Author(s): Li Li、Craze Alexander R.、Mustonen Outi、Zenno Hikaru、Whittaker Jacob J.、Hayami Shinya、Lindoy Leonard F.、Marjo Christopher E.、Clegg Jack K.、Aldrich-Wright Janice R.、Li Feng
  • Journal Title: Dalton Transactions Volume: 48 Pages: 9935-9938
  • DOI: 10.1039/c9dt01947b
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Air-Stable n-Type Single-Walled Carbon Nanotubes Doped with Benzimidazole Derivatives for Thermoelectric Conversion and Their Air-Stable Mechanism (2019)
  • Author(s): Nakashima Yuki、Yamaguchi Ryohei、Toshimitsu Fumiyuki、Matsumoto Masamichi、Borah Angana、Staykov Aleksandar、Islam Md. Saidul、Hayami Shinya、Fujigaya Tsuyohiko
  • Journal Title: ACS Applied Nano Materials Volume: 2 Pages: 4703-4710
  • DOI: 10.1021/acsanm.9b01174
  • Peer Reviewed
• [Journal Article] Observation of Proton Transfer Coupled Spin Transition and Trapping of Photoinduced Metastable Proton Transfer State in an Fe(II) Complex (2019)
  • Author(s): Nakanishi Takumi、Hori Yuta、Sato Hiroyasu、Wu Shu-Qi、Okazawa Atsushi、Kojima Norimichi、Yamamoto Takashi、Einaga Yasuaki、Hayami Shinya、Horie Yusuke、Okajima Hajime、Sakamoto Akira、Shiota Yoshihito、Yoshizawa Kazunari、Sato Osamu
  • Journal Title: Journal of the American Chemical Society Volume: 141 Pages: 14384-14393
  • DOI: 10.1021/jacs.9b07204
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Homo- and Heterosolvent Modifications of Hofmann-Type Flexible Two-Dimensional Layers for Colossal Interlayer Thermal Expansions (2019)
  • Author(s): Ohtani Ryo、Yanagisawa Junichi、Matsunari Hiromu、Ohba Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Inorg. Chem. Volume: 58 Pages: 12739-12747
  • DOI: 10.1021/acs.inorgchem.9b01660
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Application of spin-crossover water soluble nanoparticles for use as MRI contrast agents (2019)
  • Author(s): Tsukiashi Asami、Min Kil Sik、Kitayama Hikaru、Terasawa Hiroaki、Yoshinaga Sosuke、Takeda Mitsuhiro、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Scientific Reports Volume: 8 Pages: 14911-14911
  • DOI: 10.1038/s41598-018-33362-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hybrids from the π-π Stacking of Graphene Oxide and Aromatic Sulfonic Compounds for Improved Proton Conductivity (2018)
  • Author(s): Shudo Yuta、Karim Mohammad Razaul、Ohtani Ryo、Nakamura Masaaki、Hayami Shinya
  • Journal Title: ChemElectroChem Volume: 5 Pages: 238-241
  • DOI: 10.1002/celc.201701026
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Effect of Layer Distance and Oxygen Content for Tuning Ion Permeation through Graphene Oxide Membrane (2018)
  • Author(s): Kazuto Hatakeyama、Kyosuke Hirose、Keisuke Awaya、Michio Koinuma、Narumi Kameda、Tetsuya Kida、Shinya Hayami、Yasumichi Matsumoto
  • Journal Title: Chem. Lett. Volume: 47 Issue: 3 Pages: 292-295
  • DOI: 10.1246/cl.171070
  • NAID: 130006434026
  • ISSN: 0366-7022, 1348-0715
  • Peer Reviewed
• [Journal Article] Proton Relaxation Time in Water-soluble Metal Complex Nanoparticles (2018)
  • Author(s): Tsukiashi Asami、Min Kil Sik、Terasawa Hiroaki、Yoshinaga Sosuke、Takeda Mitsuhiro、Ohtani Ryo、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Chem. Lett. Volume: 47 Issue: 4 Pages: 598-600
  • DOI: 10.1246/cl.180038
  • NAID: 130006638867
  • ISSN: 0366-7022, 1348-0715
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Intermolecular Interaction Tuning of Spin-Crossover Iron(III) Complexes with Aromatic Counteranions (2018)
  • Author(s): Tsukiashi Asami、Nakaya Manabu、Kobayashi Fumiya、Ohtani Ryo、Nakamura Masaaki、Harrowfield Jack M.、Kim Yang、Hayami Shinya
  • Journal Title: Inorganic Chemistry Volume: 57 Pages: 2834-2842
  • DOI: 10.1021/acs.inorgchem.7b03126
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Mesoporous silica nanocarriers encapsulated antimalarials with high therapeutic performance (2018)
  • Author(s): Amolegbe Saliu Alao、Hirano Yui、Adebayo Joseph Oluwatope、Ademowo Olusegun George、Balogun Elizabeth Abidemi、Obaleye Joshua Ayoola、Krettli Antoniana Ursine、Yu Chengzhong、Hayami Shinya
  • Journal Title: Scientific Reports Volume: 8 Pages: 3078-3078
  • DOI: 10.1038/s41598-018-21351-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Super Dielectric Materials of Two-Dimensional TiO2 or Ca2Nb3O10 Nanosheet Hybrids with Reduced Graphene Oxide (2018)
  • Author(s): Rabin Nurun Nahar、Ida Shintaro、Karim Mohammad Razaul、Islam Md. Saidul、Ohtani Ryo、Nakamura Masaaki、Koinuma Michio、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: ACS Omega Volume: 3 Pages: 2074-2083
  • DOI: 10.1021/acsomega.7b01764
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ferroelectric and luminescence properties of zinc(ii) and platinum(ii) soft complexes (2018)
  • Author(s): Akiyoshi Ryohei、Hirota Yuma、Kosumi Daisuke、Ohtani Ryo、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Dalton Transaction Volume: 47 Pages: 14288-14292
  • DOI: 10.1039/c8dt01100a
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ca2-αLaαNb3-βXβO10 Nanosheet Photocatalyst for Hydrogen Generation from Water Splitting (2018)
  • Author(s): Ohmagari Hitomi、Karim Mohammad Razaul、Shudo Yuta、Ida Shintaro、Ohtani Ryo、Hayami Shinya
  • Journal Title: MRS Advances Volume: 3 Pages: 2847-2854
  • DOI: 10.1557/adv.2018.461
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Creating capsules with cubanes (2018)
  • Author(s): Kusumoto Sotaro、Kobayashi Fumiya、Ohtani Ryo、Zhang Yingjie、Harrowfield Jack、Kim Yang、Hayami Shinya、Nakamura Masaaki
  • Journal Title: Dalton Transactions Volume: 47 Pages: 9575-9578
  • DOI: 10.1039/c8dt01911h
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Post-synthetic Modification of a Dinuclear Spin Crossover Iron(III) Complex (2018)
  • Author(s): Komatsumaru Yuki、Nakaya Manabu、Kobayashi Fumiya、Ohtani Ryo、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Zeitschrift fur anorganische und allgemeine Chemie Volume: 644 Pages: 729-734
  • DOI: 10.1002/zaac.201800087
  • Peer Reviewed
• [Journal Article] Abrupt spin transition in a modified-terpyridine cobalt(ii) complex with a highly-distorted [CoN6] core (2018)
  • Author(s): Nakaya Manabu、Ohtani Ryo、Shin Jong Won、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Dalton Transactions Volume: 47 Pages: 13809-13814
  • DOI: 10.1039/c8dt02367k
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Positive and Negative Two-Dimensional Thermal Expansion via Relaxation of Node Distortions (2018)
  • Author(s): Ohtani Ryo、Yamamoto Riho、Aoyama Takuya、Grosjean Arnaud、Nakamura Masaaki、Clegg Jack K.、Hayami Shinya
  • Journal Title: Inorganic Chemistry Volume: 57 Pages: 11588-11596
  • DOI: 10.1021/acs.inorgchem.8b01617
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Wheel-type heterometallic ferromagnetic clusters: [Ni7?xMx(HL)6(μ3-OMe)4(μ3-OH)2]Cl2 (M = Zn, Co, Mn; x = 1, 3) (2018)
  • Author(s): Kobayashi Fumiya、Ohtani Ryo、Kusumoto Sotaro、Lindoy Leonard F.、Hayami Shinya、Nakamura Masaaki
  • Journal Title: Dalton Transactions Volume: 47 Pages: 16422-16428
  • DOI: 10.1039/c8dt03275k
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Modulating the Work Function of Graphene by Pulsed Plasma Aided Controlled Chlorination (2018)
  • Author(s): Takehira Hiroshi、Karim Mohammad Razaul、Shudo Yuta、Fukuda Masahiro、Mashimo Tsutomu、Hayami Shinya
  • Journal Title: Scientific Reports Volume: 8 Pages: 17392-17392
  • DOI: 10.1038/s41598-018-35668-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Superionic conductivity in hybrid of 3-hydroxypropanesulfonic acid and graphene oxide (2017)
  • Author(s): K. Wakata, M. R. Karim, M. S. Islam, R. Ohtani, M. Nakamura, M. Koinuma, S. Hayami
  • Journal Title: Chemistry - An Asian Journal Volume: 12 Pages: 194-197
  • DOI: 10.1002/asia.201601488
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Guest-dependent spin-transition behavior of porous coordination polymers (2017)
  • Author(s): R. Ohtani, S. Hayami
  • Journal Title: Chemistry - A European Journal Volume: 23 Pages: 2236-2248
  • DOI: 10.1002/chem.201601880
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Arsine gas sensor based on gold-modified reduced graphene oxide (2017)
  • Author(s): Ryo Furue, Edwin P. Koveke, Shotaro Sugimoto, Yuta Shudo, Shinya Hayami, Shin-Ichi Ohira, Kei Toda
  • Journal Title: Sensors and Actuators B: Chemical Volume: 240 Pages: 657-663
  • DOI: 10.1016/j.snb.2016.08.131
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Dinuclear Iron(III) and Nickel(II) Complexes Containing N-(2-Pyridylmethyl)-N′-(2-hydroxyethyl)ethylenediamine: Catalytic Oxidation and Magnetic Properties (2017)
  • Author(s): Jeong Ah Rim、Shin Jong Won、Jeong Jong Hwa、Bok Kwon Hee、Kim Cheal、Jeong Donghyun、Cho Jaeheung、Hayami Shinya、Min Kil Sik
  • Journal Title: Chemistry - A European Journal Volume: 23 Pages: 3023-3033
  • DOI: 10.1002/chem.201604498
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Modulation of redox potentials utilizing the flexible coordination sphere of a penta-coordinate complex in the solid states (2017)
  • Author(s): R. Ohtani, Y. Kitamura, Y. Hijikata, M. Nakamura, L. F. Lindoy, S. Hayami
  • Journal Title: Dalton Transactions Volume: 46 Pages: 3749-3754
  • DOI: 10.1039/c7dt00233e
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Molecular Assemblies of Metal Complexes via Base Pairing of Nucleic Acids in the Crystalline State (2017)
  • Author(s): Manabu Nakaya, Ryo Ohtani, Kunihisa Sugimoto, Masaaki Nakamura, Leonard F. Lindoy, Shinya Hayami
  • Journal Title: Chemistry - A European Journal Volume: - Pages: 7232-7237
  • DOI: 10.1002/chem.201700593
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Proton conductors produced by chemical modifications of carbon allotropes, perovskites and metal organic frameworks (2017)
  • Author(s): Mohammad Razaul Karim, Kazuto Hatakeyama, Michio Koinuma, Shinya Hayami
  • Journal Title: Journal of Materials Chemistry A Volume: 5 Pages: 7243-7256
  • DOI: 10.1039/c6ta10923c
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Crystal Structures and Spin-Crossover Behavior of Iron(II) Complexes with Chiral and Racemic Ligands (2017)
  • Author(s): Y. Sekimoto, M. R. Karim, N. Saigo, R. Ohtani, M. Nakamura, S. Hayami
  • Journal Title: European Journal of Inorganic Chemistry Volume: - Pages: 1049-1053
  • DOI: 10.1002/ejic.201601232
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] pH-Dependent structural diversity of a 2-pyridinemethanol Cu complex and its relatively strong magnetic exchange coupling via hydrogen bonding (2017)
  • Author(s): Hamaguchi Tomohiko、Nagata Tomoko、Hayami Shinya、Kawata Satoshi、Ando Isao
  • Journal Title: Dalton Transactions Volume: 46 Pages: 6196-6201
  • DOI: 10.1039/c7dt00718c
  • Peer Reviewed
• [Journal Article] Supramolecular architectures self-assembled using long chain alkylated spin crossover cobalt(II) compounds (2017)
  • Author(s): Akiyoshi, R.; Kuroiwa, K.; Amolegbe, S. A.; Nakaya, M.; Ohtani, R.; Nakamura, M.; Lindoy, L. F.; Hayami, S.
  • Journal Title: Chemical Communications Volume: in press Pages: 4685-4687
  • DOI: 10.1039/c7cc01501a
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Role of hydrophilic groups in acid intercalated graphene oxide as a superionic conductor (2017)
  • Author(s): Wakata Kosuke、Islam Md. Saidul、Karim Mohammad Razaul、Hatakeyama Kazuto、Rabin Nurun Nahar、Ohtani Ryo、Nakamura Masaaki、Koinuma Michio、Hayami Shinya
  • Journal Title: RSC Advances Volume: 7 Pages: 21901-21905
  • DOI: 10.1039/c7ra01634d
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Anion-dependent interpenetration in lattices of Ag(I) complexes of a divergent quaterpyridine-donor ligand (2017)
  • Author(s): Shin Jong Won、Lee Young Hoon、Harrowfield Jack、Hayami Shinya、Kim Yang
  • Journal Title: Polyhedron Volume: 130 Pages: 94-99
  • DOI: 10.1016/j.poly.2017.04.002
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Zero in-plane thermal expansion in guest-tunable 2D coordination polymers (2017)
  • Author(s): R. Ohtani, A. Grosjean, R. Ishikawa, R. Yamamoto, M. Nakamura, J. K. Clegg, S. Hayami
  • Journal Title: Inorganic Chemistry Volume: 56 Pages: 6225-6233
  • DOI: 10.1021/acs.inorgchem.7b00282
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interlayer Void Space as the Key Semipermeable Site for Sieving Molecules and Leaking Ions in Graphene Oxide Filter (2017)
  • Author(s): Karim Mohammad Razaul、Islam Md. Saidul、Rabin Nurun Nahar、Takehira Hiroshi、Wakata Kosuke、Nakamura Masaaki、Ohtani Ryo、Toda Kei、Hayami Shinya
  • Journal Title: ChemistrySelect Volume: 2 Pages: 4248-4254
  • DOI: 10.1002/slct.201700503
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Syntheses, Structures and Magnetic Properties of Tetranuclear Cubane-type and Heptanuclear Wheel-type Nickel(II) Complexes with 3-Methoxysalicylic Acid Derivatives (2017)
  • Author(s): F. Kobayashi, R. Ohtani, S. Teraoka, W. Kosaka, H. Miyasaka, Y. Zhang, L. F. Lindoy, S. Hayami, M. Nakamura
  • Journal Title: Dalton Transactions Volume: 46 Pages: 8555-8561
  • DOI: 10.1039/c7dt01757j
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Development of an All Solid State Battery Incorporating Graphene Oxide as Proton Conductor (2017)
  • Author(s): Shudo Yuta、Islam Md. Saidul、Karim Mohammad Razaul、Rabin Nurun Nahar、Wakata Kosuke、Ohtani Ryo、Nakamura Masaaki、Lindoy Leonard F.、Hayami Shinya
  • Journal Title: Global Challenges Volume: 1 Pages: 1700054-1700054
  • DOI: 10.1002/gch2.201700054
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] New mechanistic insights into intramolecular aromatic ligand hydroxylation and benzyl alcohol oxidation initiated by the well-defined (μ-peroxo)diiron(iii) complex (2017)
  • Author(s): Sekino Mio、Furutachi Hideki、Tojo Rina、Hishi Ayumi、Kajikawa Hanako、Suzuki Takatoshi、Suzuki Kaito、Fujinami Shuhei、Akine Shigehisa、Sakata Yoko、Ohta Takehiro、Hayami Shinya、Suzuki Masatatsu
  • Journal Title: Chemical Communications Volume: 53 Pages: 8838-8841
  • DOI: 10.1039/c7cc04382a
  • Peer Reviewed
• [Journal Article] Photoreduction Dependent p- and n-Type Semiconducting Field-Effect Transistor Properties in Undoped Reduced Graphene Oxide (2017)
  • Author(s): Takehira Hiroshi、Islam Md. Saidul、Karim Mohammad Razaul、Shudo Yuta、Ohtani Ryo、Lindoy Leonard F.、Taniguchi Takaaki、Osada Minoru、Hayami Shinya
  • Journal Title: ChemistrySelect Volume: 2 Pages: 6941-6944
  • DOI: 10.1002/slct.201701509
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Tuneable pressure effects in graphene oxide layers (2017)
  • Author(s): Y. Sekimoto, R. Ohtani, M. Nakamura, L. F. Lindoy, S. Hayami
  • Journal Title: Scientific Reports Volume: 7 Pages: 12159-12159
  • DOI: 10.1038/s41598-017-12444-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Material Showing Colossal Positive and Negative Volumetric Thermal Expansion with Hysteretic Magnetic Transition (2017)
  • Author(s): Hu Ji-Xiang、Xu Yang、Meng Yin-Shan、Zhao Liang、Hayami Shinya、Sato Osamu、Liu Tao
  • Journal Title: Angewandte Chemie International Edition Volume: 56 Pages: 13052-13055
  • DOI: 10.1002/anie.201707258
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ferromagnetic dinuclear nickel(II) complexes bridged by azide ions (2017)
  • Author(s): Jeong Ah Rim、Choi Jihye、Komatsumaru Yuki、Hayami Shinya、Min Kil Sik
  • Journal Title: Inorganic Chemistry Communications Volume: 86 Pages: 66-69
  • DOI: 10.1016/j.inoche.2017.09.023
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Oxidation route dependent proton conductivities of oxidized fullerenes (2017)
  • Author(s): Rabin Nurun Nahar、Karim Mohammad Razaul、Islam Md. Saidul、Omagari Hitomi、Kameda Narumi、Shudo Yuta、Ohtani Ryo、Nakamura Masaaki、Hayami Shinya
  • Journal Title: New Journal of Chemistry Volume: 41 Pages: 14708-14712
  • DOI: 10.1039/c7nj02964k
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The impact of metal complex lipids on viscosity and curvature of hybrid liposomes (2017)
  • Author(s): R. Ohtani, T. Tokita, T. Takaya, K. Iwata, M. Kinoshita, N. Matsumori, M. Nakamura, L. F. Lindoy, S. Hayami
  • Journal Title: Chemical Communications Volume: 53 Pages: 13249-13252
  • DOI: 10.1039/c7cc07944c
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2020)
  • Author(s): Shinya Hayami
  • Organizer: 第100回日本化学会春季年会
  • Invited
• [Presentation] Graphene Oxide as a Super Material (2020)
  • Author(s): Shinya Hayami
  • Organizer: Symposium on Materials Chemistry for Sustainable Energy
  • Invited
• [Presentation] 酸化グラフェンの多機能性と応用 (2019)
  • Author(s): 速水真也
  • Organizer: グラフェン酸化グラフェン合同シンポジウム
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2019)
  • Author(s): Shinya Hayami
  • Organizer: ACCC2019
• [Presentation] Advanced molecular functional baseed on inetermolecular interaction (2019)
  • Author(s): Shinya Hayami
  • Organizer: 錯体化学会第69回討論会
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2018)
  • Author(s): Shinya Hayami
  • Organizer: MRS
  • Int'l Joint Research / Invited
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2018)
  • Author(s): Shinya Hayami
  • Organizer: International Forum on Graphene
  • Int'l Joint Research / Invited
• [Presentation] Graphene Oxide Hybrids and its Applications (2018)
  • Author(s): Shinya Hayami
  • Organizer: ICSM
  • Int'l Joint Research / Invited
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2018)
  • Author(s): Shinya Hayami
  • Organizer: ISNSC
  • Int'l Joint Research / Invited
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2018)
  • Author(s): Shinya Hayami
  • Organizer: ICCC
  • Int'l Joint Research / Invited
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2018)
  • Author(s): Shinya Hayami
  • Organizer: CMCEE
  • Int'l Joint Research / Invited
• [Presentation] Tuneable Pressure Effects in Graphene Oxide Layers (2018)
  • Author(s): Shinya Hayami
  • Organizer: ICMM
  • Int'l Joint Research
• [Presentation] Multi-Functional Metal Complex Based on Intermolecular Interaction (2018)
  • Author(s): Shinya Hayami
  • Organizer: M3E
  • Int'l Joint Research / Invited
• [Presentation] Graphene Oxide and Reduced Graphene Oxide Hybrids (2018)
  • Author(s): Shinya Hayami
  • Organizer: IUPAC NMS-XIV
  • Int'l Joint Research / Invited
• [Presentation] Graphene oxide hybrids with SCO complexes (2017)
  • Author(s): Shinya Hayami
  • Organizer: ACCC
  • Int'l Joint Research / Invited
• [Presentation] Tunable Pressure Effects in Graphene Oxide Layers (2017)
  • Author(s): Shinya Hayami
  • Organizer: ISNSC
  • Int'l Joint Research / Invited
• [Presentation] Tunable Pressure Effects in Graphene Oxide Layers (2017)
  • Author(s): Shinya Hayami
  • Organizer: US-JP Joint symposium
  • Int'l Joint Research / Invited
• [Presentation] Tunable Pressure Effects in Graphene Oxide Layers (2017)
  • Author(s): Shinya Hayami
  • Organizer: UK-JP Joint Symposium
  • Int'l Joint Research / Invited
• [Presentation] Tunable Pressure Effects in Graphene Oxide Layers (2017)
  • Author(s): Shinya Hayami
  • Organizer: CN-JP Joint Symposium
  • Int'l Joint Research / Invited
• [Presentation] Tunable Pressure Effects in Graphene Oxide Layers (2017)
  • Author(s): Shinya Hayami
  • Organizer: RPGR
  • Invited
• [Presentation] Tunable Pressure Effects in Graphene Oxide Layers (2017)
  • Author(s): 速水真也
  • Organizer: GO研究会
  • Int'l Joint Research / Invited
• [Presentation] Tunable Pressure Effects in Graphene Oxide Layers (2017)
  • Author(s): Shinya Hayami
  • Organizer: EMN
  • Int'l Joint Research / Invited
• [Book] グラフェンから広がる二次元物質の新技術と応用 (2020)
  • Author(s): 福田将大, 速水真也
  • Publisher: エヌ・ティー・エス
  • ISBN: 9784860436636
• [Book] Inorganic Nanosheets and Nanosheet-Based Materials (2017)
  • Author(s): K. Hatakeyama, S. Hayami, Y. Matsumoto
  • Total Pages: 542
  • Publisher: Springer
  • ISBN: 9784431564942
• [Remarks] 速水研究室
  • URL: http://www.sci.kumamoto-u.ac.jp/~hayami/index.html
• [Remarks] Recent research
  • URL: http://www.sci.kumamoto-u.ac.jp/~hayami/recent%20research.html