2020
233. K. Oka, S. Murao, K. Kobayashi, H. Nishide, K. Oyaizu,* “Charge- and Proton-Storage Capability of Naphthoquinone-Substituted Poly(allylamine) as Electrode-active Material for Polymer-Air Secondary Batteries”, ACS Appl. Energy Mater., 3, 12019-12024 (2020). DOI: 10.1021/acsaem.0c02178
232. L. Wylie, T. Blesch, R. Freeman, K. Hatakeyama-Sato, K. Oyaizu, M. Yoshizawa-Fujita, E. I. Izgorodina, “Reversible Reduction of the TEMPO Radical: One Step Closer to an All-organic Redox Flow Battery”, ACS Sustainable Chem. Eng., 8, 17988-17996 (2020). DOI: 10.1021/acssuschemeng.0c05687
231. J. Miyake, Y. Ogawa, T. Tanaka, J. Ahn, K. Oka, K. Oyaizu, K Miyatake, “Rechargeable Proton Exchange Membrane Fuel Cell Containing an Intrinsic Hydrogen Storage Polymer”, Communn. Chem., 3, 138 (2020). DOI: 10.1038/s42004-020-00384-z (Open Access)
230. S. Watanabe, K. Oyaizu, “Methoxy-substituted Phenylenesulfide Polymer with Excellent Dispersivity of TiO2 Nanoparticles for Optical Application”, Bull. Chem. Soc. Jpn., 93, 1287-1292 (2020). DOI: 10.1246/bcsj.2020017
229. K. Oka, Y. Kaiwa, M. Kataoka, K. Fujita, K. Oyaizu, “A Polymer Sheet-based Hydrogen Carrier”, Eur. J. Org. Chem., 5876-5879 (2020). DOI: 10.1002/ejoc.20200100
228. K. Oka, R. Löfgren, R. Emanuelsson, H. Nishide, K. Oyaizu, M. Strømme, M. Sjödin, “Conducting Redox Polymer as Organic Anode Material for Polymer-manganese Secondary Batteries”, ChemElectroChem, 7, 3336-3340 (2020). DOI: 10.1002/celc.202000711 (Open Access)
227. K. Hatakeyama-Sato, K. Oyaizu, “Integrating Multiple Materials Science Projects in a Single Neural Network”, Commun. Mater., 1, 49 (2020). DOI: 10.1038/s43246-020-00052-8 (Open Access)
a A single neural network model is trained to learn and predict diverse materials informatics projects. b Traditionally, a model can process only one database and predict one parameter. The Wikipedia logo is reprinted with the CC-BY-SA 3.0 license.
226. K. Hatakeyama-Sato, M. Umeki, T. Tezuka, K. Oyaizu, “Charge-transfer Complexes for Solid-state Li+ conduction”, ACS Appl. Electron. Mater., 2, 2211-2217 (2020). DOI: 10.1021/acsaelm.0c00393
225. Y. Wang, K. Oyaizu, H. Nishide, “Allylic Hydrocarbon Polymers Complexed with Fe(II)(salen) as a Ultrahigh Oxygen-scavenging and Active Packaging Film”, Pure Appl. Chem., 92, 871-882 (2020). DOI: 10.1515/pac-2020-0102
224. K. Oka, Y. Kaiwa, S. Furukawa, H. Nishide, K. Oyaizu, “Reversible Hydrogen Fixation and Release under Mild Conditions by Poly(vinylquinoxaline)”, ACS Appl. Polym. Mater., 2, 2756-2760 (2020). DOI: 10.1021/acsapm.0c00338
223. K. Suwa, T. Suga, K. Oyaizu, H. Segawa, H. Nishide, “Phenolic Antioxidant-incorporated Durable Perovskite Layers and Their Application for a Solar Cell”, MRS Commun., 10, 312-316 (2020). DOI: 10.1557/mrc.2020.25
222. K. Oka, C. Strietzel, R. Emanuelsson, H. Nishide, K. Oyaizu, M. Strømme, M. Sjödin, “Conducting Redox Polymer as a Robust Organic Electrode-active Material in Acidic Aqueous Electrolyte towards Polymer-air Secondary Batteries”, ChemSusChem, 13, 2280-2285 (2020). DOI: 10.1002/cssc.202000627 (Open Access)
221. K. Hatakeyama-Sato, T. Akahane, C. Go, T. Kaseyama, T. Yoshimoto, K. Oyaizu,* “Ultrafast Charge/discharge by a 99.9% Conventional Lithium Iron Phosphate Electrode Containing 0.1% Redox-active Fluoflavin Polymer”, ACS Energy Lett., 5, 1712-1717 (2020). DOI: 10.1021/acsenergylett.0c00622
220. K. Hatakeyama-Sato, T. Tezuka, R. Ichinoi, S. Matsumono, K. Sadakuni, K. Oyaizu,* “Metal-free, Solid-state, and Paper-like Rechargeable Batteries Consisting of Redox-active Polyethers”, ChemSusChem, 13, 2443-2448 (2020). DOI: 10.1002/cssc.201903175 (Open Access)
219. K. Oka, S. Furukawa, S. Murao, T. Oka, H. Nishide, K. Oyaizu, “Poly(dihydroxybenzoquinone): Its High-density and Robust Charge Storage Capability in Rechargeable Acidic Polymer-air Batteries”, Chem. Commun., 56, 4055-4058 (2020). DOI: 10.1039/D0CC00660B
218. K. Hatakeyama-Sato, R. Mizukami, T. Serikawa, K. Oyaizu,* H. Nishide,* “A Highly Flexible Yet >300 mAh cm-3 Energy Density Lithium-ion Battery Assembled with the Cathode of a Redox-active Polyether Binder”, Energy Technol., 8, 1901159 (2019). DOI: 10.1002/ente.201901159
217. K. Hatakeyama-Sato, T. Tezuka, M. Umeki, K. Oyaizu,* “AI-assisted Exploration of Superionic Glass-type Li+ Conductors with Aromatic Structures”, J. Am. Chem. Soc., 142, 3301-3305 (2020). DOI: 10.1021/jacs.9b11442
216. Y. Wang, R. Nakamura, T. Suga,* S. Li, Y. Ohki, H. Nishide, K. Oyaizu,* “Facile Synthesis of Isotactic Polyacrylonitrile via Template Polymerization in Interlayer Space for Dielectric Energy Storage”, ACS Appl. Polym. Mater., 2, 775-781 (2020). DOI: 10.1021/acsapm.9b01074
215. K. Hatakeyama-Sato, S. Kimura, S. Matsumoto, K. Oyaizu,* “Facile Synthesis of Poly(glycidyl ether)s with Ionic Pendant Groups by Thiol-ene Reactions”, Macromol. Rapid Commun., 41, 1900399 (2020). DOI: 10.1002/marc.201900399
214. Y. Wang, Y. Hasegawa, T. Serikawa, K. Oyaizu, H. Nishide, “Ultrahigh Oxygen-scavenging Norbornene Copolymers Bearing Imidazolyl Iron Complex for Fabricating Active and Sustainable Packaging Films”, Chem. Commun., 56, 964-967 (2020). DOI: 10.1039/c9cc08788e
2019
213. K. Suwa, K. Oyaizu, H. Segawa, H. Nishide, “Anti-oxidizing Radical Polymer-incorporated Perovskite Layers and Their Photovoltaic Characteristics”, ChemSusChem, 12, 5207-5212 (2019). DOI: 10.1002/cssc.201901601
212. K. Hatakeyama-Sato, T. Masui, T. Serikawa, Y. Sasaki, W. Choi, S. -G. Doo, H. Nishide,* K. Oyaizu*, “Non-conjugated Redox-active Polymer Mediators for Rapid Electrocatalytic Charging of Lithium Metal Oxides”, ACS Appl. Energy Mater., 2, 6375-6382 (2019). DOI: 10.1021/acsaem.9b01007
211. Y. Wang, M. Shoda, A. Hisama, K. Oyaizu,* H. Nishide,* “Oxygen Scavenging and Oxygen Barrier Poly(1,2-butadiene) Films Containing an Iron-complex Catalyst”, Macromol. Chem. Phys., 2019, 1900294. DOI: 10.1002/macp.201900294
210. K. Oka, C. Strietzel, R. Emanuelsson, H. Nishide, K. Oyaizu,* M. Strømme, M. Sjödin,* “Characterization of PEDOT-quinone Conducting Redox Polymers in Water-in-salt Electrolytes for Safe and High-Energy Li-Ion Batteries”, Electrochem. Commun., 105, 106489 (2019). DOI: 10.1016/j.elecom.2019.106489
209. R. Kato, K. Oka, K. Yoshimasa, M. Nakajima, H. Nishide,* K. Oyaizu,* “Reversible Hydrogen Releasing and Fixing with Poly(vinylfluorenol) through a Mild Ir-Catalyzed Dehydrogenation and Electrochemical Hydrogenation”, Macromol. Rapid Commun., 2019, 1900139. DOI: 10.1002/marc.201900139
208. K. Hatakeyama-Sato, R. Ichinoi, Y. Sasada, Y. Sasaki, K. Oyaizu,* H. Nishide,* “n-Type Redox-active Benzoylpyridinium-substituted Supramolecular Gel for an Organogel-based Rechargeable Device”, Chem. Lett., 48, 555-557 (2019). DOI: 10.1246/cl.190085
207. W. Okada, T. Suga, K. Oyaizu, H. Segawa, H. Nishide,* “Perovskite/TiO2 Interface Passivation Using Poly(vinylcarbazole) and Fullerene for the Photovoltaic Conversion Efficiency of 21%”, ACS Appl. Energy Mater., 2, 2848-2853 (2019). DOI: 10.1021/acsaem.9b00162
206. S. Perticarari, E. Grange, T. Doizy, E. Quarez, K. Oyaizu, D. Guyomard, P. Poizot,* F. Odobel,* J. Gaubicher,* “Full Organic Aqueous Battery Based on TEMPO Small Molecule with Millimeter-thick Electrodes”, Chem. Mater., 31, 1869-1880 (2019). DOI: 10.1021/acs.chemmater.8b03282
205. L. Wylie, R. Kempt, T. Heine, K. Oyaizu, A. Karton, M. Yoshizawa-Fujita, E. I. Izgorodina,* “Toward Improved Performance of All-organic Nitroxide Radical Batteries with Ionic Liquids: A Theoretical Perspective”, ACS Sustainable Chem. Eng., 7, 5367-5375 (2019). DOI: 10.1021/acssuschemeng.8b06393
204. K. Hatakeyama-Sato, H. Wakamatsu, K. Yamagishi, T. Fujie, S. Takeoka, K. Oyaizu,* H. Nishide,* “Ultrathin and Stretchable Rechargeable Devices with Organic Polymer Nanosheets Conformable to Skin Surface”, Small, 15, 1805296 (2019). DOI: 10.1002/smll.201805296 (Open Access)
203. K. Hatakeyama-Sato, T. Nagano, S. Noguchi, Y. Sugai, J. Du, H. Nishide, K. Oyaizu,* “Hydrophilic Organic Redox-active Polymer Nanoparticles for Higher Energy Density Flow Batteries”, ACS Applied Polym. Mater., 1, 188-196 (2019). DOI: 10.1021/acsapm.8b00074
202. K. Hatakeyama-Sato, T. Tezuka, Y. Nishikitani, H. Nishide, K. Oyaizu,* “Synthesis of Lithium-ion Conducting Polymers Designed by Machine Learning-based Prediction and Screening”, Chem. Lett.(Editor's Choice), 48, 130-132 (2019). DOI: 10.1246/cl.180847 (Open Access)
201. H. Maruo, Y. Sasaki, K. Harada, K. Suwa, K. Oyaizu, H. Segawa, K. Carter, H. Nishide,* “Hole-transporting Diketopyrrolopyrrole-thiophene Polymers and their Additive-free Application for a Perovskite-type Solar Cell with an Efficiency of 16.3%”, Polym. J., 51, 91-96 (2019). DOI: 10.1038/s41428-018-0116-9
2018
200. K. Oka, R. Kato, K. Oyaizu, H. Nishide,* “Poly(vinyldibenzothiophenesulfone): Its Redox Capability at Very Negative Potential Toward an All-organic Rechargeable Device with High-energy Density”, Adv. Funct. Mater., 28, 1805858 (2018). DOI: 10.1002/adfm.201805858
199. K. Suwa, S. Tanaka, K. Oyaizu, H. Nishide,* “Arylamine Polymers Prepared via Facile Paraldehyde Addition Condensation: an Effective Hole-transporting Material for Perovskite Solar Cells”, Polym. Int., 67, 670-674 (2018).DOI: 10.1002/pi.5545
198. K. Sato, H. Wakamatsu, R. Katagiri, K. Oyaizu,* H. Nishide,* “An Ultrahigh Output Rechargeable Electrode of a Hydrophilic Radical Polymer/nanocarbon Hybrid with an Exceptionally Large Current Density beyond 1 A cm−2”, Adv. Mater., 30, 1800900 (2018). DOI: 10.1002/adma.201800900
197. Y. Nishikitani,* T. Cho, S. Uchida, S. Nishimura, K. Oyaizu, H. Nishide, “Polymer-based White-light-emitting Electrochemical Cells with Very High Color-rendering Index Based on Blue-green Fluorescent Polyfluorenes and Red-phosphorescent Iridium Complexes”, ChemPlusChem., 83, 463-469 (2018). DOI: 10.1002/cplu.201800198
196. T. Kawai, S. Nakao, H. Nishide,* K. Oyaizu,* “Poly(diphenanthrenequinone-substituted norbornene) for Long Life and Efficient Lithium Battery Cathodes”, Bull. Chem. Soc. Jpn., 91, 721-727 (2018). DOI: 10.1246/bcsj.20170420
195. K. Sato, R. Ichinoi, R. Mizukami, T. Serikawa, Y. Sasaki, J. Lutkenhaus, H. Nishide,* K. Oyaizu,* “Diffusion-cooperative Model for Charge Transport by Redox-active Nonconjugated Polymers”, J. Am. Chem. Soc., 140, 1049-1056 (2018). DOI: 10.1021/jacs.7b11272
194. H. Maruo, S. Tanaka, M. Takamura, K. Oyaizu, H. Segawa, H. Nishide,* “Oxoammonium Cation of TEMPO: A Very Efficient Dopant for Hole-transporting Triaryl Amines in a Perovskite Solar Cell”, MRS Commun., 8, 122-126 (2018). DOI: 10.1557/mrc.2017.135
Redox reaction of TEMPO/TEMPO+ (a) and chemical structures of triaryl amine, spiro-OMeTAD (b) and MeO-TPD (c).
2017
193. Y. Nishikitani,* D. Takizawa, S. Uchida, Y. Lu, S. Nishimura, K. Oyaizu, H. Nishide, “Ag Nanocluster-based Color Converters for White Organic Light-Emitting Devices”, J. Appl. Phys., 122, 184302 (2017). DOI: 10.1063/1.4995671
192. Y. Nishikitani,* K. Suga, S. Uchida, S. Nishimura, K. Oyaizu, H. Nishide, “High-color-rendering-index White Polymer Light-emitting Electrochemical Cells Based on Ionic Host-guest Systems: Utilization of Blend Films of Blue-fluorescent Cationic Polyfluorenes and Red-phosphorescent Cationic Iridium Complexes”, Org. Electron., 51, 168-172 (2017). DOI: 10.1016/j.orgel.2017.09.003
191. K. Sato, T. Mizuma, H. Nishide,* K. Oyaizu,* “Command Surface of Self-organizing Structures by Radical Polymers with Cooperative Redox Reactivity”, J. Am. Chem. Soc., 139, 13600-13603 (2017). DOI: 10.1021/jacs.7b06879
190. K. Sato, T. Yamasaki, H. Nishide, K. Oyaizu,* “Grafted Radical Polymer Brush for Surface-driven Switching of Chiral Nematic Liquid Crystals”, Polym. J., 49, 691-693 (2017). DOI: 10.1038/pj.2017.43
189. Y. Sasada, R. Ichinoi, K. Oyaizu, H. Nishide,* “Supramolecular Organic Radical Gels Formed with 2,2,6,6-Tetramethylpiperidin-1-oxyl-substituted Cyclohexanediamines: A Very Efficient Charge-transporting and -Storable Soft Material”, Chem. Mater., 29, 5942-5947 (2017). DOI: 10.1021/acs.chemmater.7b01476
188. R. Kato, T. Oya, Y. Shimazaki, K. Oyaizu, H. Nishide,* “A Hydrogen-storing Quinaldine Polymer: Nickel-electrodeposition-assisted Hydrogenation and Subsequent Hydrogen Evolution”, Polym. Int., 66, 647-652 (2017). DOI: 10.1002/pi.5327
187. K. Sato, S. Uchida, S. Toriyama, S. Nishimura, K. Oyaizu, H. Nishide, Y. Nishikitani,* “Low-cost, Organic Light-emitting Electrochemical Cells with Mass-producible Nanoimprinted Substrates Made Using Roll-to-roll Methods”, Adv. Mater. Technol., 1600293 (2017). DOI: 10.1002/admt.201600293
186. K. Sato, R. Mizukami, T. Mizuma, H. Nishide,* K. Oyaizu,* “Synthesis of Dimethyl-substituted Polyviologen and Control of Charge Transport in Electrodes for High-resolution Electrochromic Displays”, Polymers, 9, 86 (2017). DOI: 10.3390/polym9030086
185. F. Aida, N. Takasu, Y. Takatori, H. Nishide,* K. Oyaizu,* “Synthesis of Highly Crystallized Poly(1,4-phenylene sulfide) via Oxygen-oxidative Polymerization of Diphenyl Disulfide”,Bull. Chem. Soc. Jpn., 90, 843-846 (2017). DOI: 10.1246/bcsj.20170055
Highly crystallized poly(1,4-phenylene sulfide) (PPS) was synthesized via oxygen oxidative-polymerization of diphenyl disulfide (Ph-SS-Ph) in the presence of diphenyl sulfide (Ph-S-Ph). With existing crystallized oligomeric PPS, the polymerization was found to be effective to increase molecular weight of PPS maintaining high crystallinity.
184. K. Sato, R. Katagiri, N. Chikushi, S. Lee, K. Oyaizu, J.-S. Lee, H. Nishide,* “Totally Organic-based Bendable Rechargeable Devices Composed of Hydrophilic Redox Polymers and Aqueous Electrolyte”, Chem. Lett., 46, 693-694 (2017). DOI: 10.1246/cl.170111
A totally organic polymer-based, submillimeter-thick, paper-like rechargeable device was fabricated using redox polymers as electrode-active materials and brine as an electrolyte. The redox polymers enabled quick charging within minutes, long life, and an operation voltage of greater than 1 V even in the bent state.
183. H. Tokue, T. Murata, H. Agatsuma, H. Nishide,* K. Oyaizu,* “Charge-discharge with Rocking-chair-type Li+Migration Characteristics in a Zwitterionic Radical Copolymer Composed of TEMPO and Trifluoromethanesulfonylimide with Carbonate Electrolytes for a High-rate Li-Ion Battery”, Macromolecules, 50, 1950-1958 (2017). DOI: 10.1021/acs.macromol.6b02404
182. H. Tokue, K. Kakitani, H. Nishide,* K. Oyaizu,* “Redox Mediation through TEMPO-substituted Polymer with Nanogap Electrodes for Electrochemical Amplification”, Chem. Lett., 46, 647-650 (2017). DOI: 10.1246/cl.170055
A thin layer of a polymer containing densely populated radicals, photocrosslinked poly[2,3-bis(2’,2’,6’,6’-tetramethylpiperidin-1’-oxyl-4’-oxycarbonyl)-5-norbornene] (PTNB), was employed to demonstrate the electrochemical amplification in the form of a polymer-sandwiched nanogap device.
2016
181. H. Tokue, K. Kakitani, H. Nishide,* K. Oyaizu,* “Electrochemical Current Rectification with Cross Reaction at a TEMPO/viologen-substituted Polymer Thin-layer Heterojunction”, RSC Adv., 6, 99195-99201 (2016). DOI: 10.1039/c6ra23124a
The electrochemical large current rectification was achieved in the bilayer system composed of the TEMPO- and viologen-containing polymer thin layers.
180. R. Kato, K. Yoshimasa, T. Egashira, T. Oya, K. Oyaizu, H. Nishide,* “A Ketone/alcohol Polymer for Cycle of Electrolytic Hydrogen-fixing with Water and -releasing under Mild Conditions”,Nature Commun., 7, 13032 (2016). DOI: 10.1038/ncomms13032 (Open Access)
(a) A sheet of the fluorenone and fluorenol hydrogel and the fluorenol sheet sealed up with a gas-barrier bag after hydrogen releasing. (b) Schematic representation of hydrogen-fixing and -releasing cycle. (c) Preparation scheme of the polymers.
179. M. Suzuka, N. Hayashi, T. Sekiguchi, K. Sumioka, M. Takata, N. Hayo, H. Ikeda, K. Oyaizu, H. Nishide,* “A Quasi-solid State DSSC with 10.1% Efficiency through Molecular Design of the Charge-Separation and -Transport”, Sci. Rep., 6, 28022 (2016). DOI: 10.1038/srep28022 (Open Access)
178. Z. Meng, K. Sato, T. Sukegawa, K. Oyaizu,* C.-L. Ho,* J. Xiang, Y.-H. Feng, Y. H. Lo,* H. Nishide,* W.-Y. Wong,* “Metallopolyyne Polymers with Ferrocenyl Pendant Ligands as Cathode-active Materials for Organic Battery Application”, J. Organomet. Chem., 812, 51-55 (2016). DOI: 10.1016/j.jorganchem.2015.11.019
177. Y. Sasada, S. J. Langford,* K. Oyaizu, H. Nishide,* “Poly(norbornyl-NDIs) as a Potential Cathode-active Material in Rechargeable Charge Storage Devices”, RSC Adv., 6, 42911-42916 (2016). DOI: 10.1039/c6ra06103f
Two pendant-type naphthalene diimide (NDI) polymers bearing a polynorbornene backbone were prepared and their electrochemical properties explored. The NDI-based polymers displayed reversible redox responses in 1 M LiClO4 γ-butyrolactone electrolyte.
176. F. Aida, Y. Takatori, D. Kiyokawa, K. Nagamatsu, K. Oyaizu,* H. Nishide,* “Enhanced Catalytic Activity of Oxovanadium Complexes in Oxidative Polymerization of Diphenyl Disulfide”, Polym. Chem., 7, 2087-2091 (2016). DOI: 10.1039/c5py01980j
Oxygen-oxidative polymerization of diphenyl disulfide gives poly(1,4-phenylene sulfide) (PPS), catalyzed by a vanadyl complex and a protic acid. N,N’-Ethylenebis(salicylideneaminato)oxovanadium(IV) (VO(salen)) which has been reported to be catalytically inactive at ambient temperature because of the insufficient reactivity of its oxidized state, an oxovanadium(V) complex, for the oxidation of the monomer turned out to exhibit an excellent catalytic activity on raising the reaction temperature above 100oC.
175. J. Xiang, K. Sato, H. Tokue, K. Oyaizu,* C.-L. Ho,* H. Nishide,* W.-Y. Wong,* M. Wei,* “Synthesis and Charge-discharge Properties of Organometallic Copolymers of Ferrocene and Triphenylamine as Cathode Active Materials for Organic-battery Applications”, Eur. J. Inorg. Chem., 2016, 1030-1035 (2016). DOI: 10.1002/ejic.201501169
Copolymers of ferrocene and triphenylamine (PVFVM1 and PVFVM1-1) show electrochemical characteristics of the ferrocene and triphenylamine pendants with multiple redox waves. PVFVM1 exhibits a discharge capacity of 102 mA h g–1 at 10 C, which corresponds to 98 % of its theoretical capacity.
174. K. Sato, T. Yamasaki, T. Mizuma, K. Oyaizu,* H. Nishide,* “Dynamic Switching of Ionic Conductivity by Cooperative Interaction of Polyviologen and Liquid Crystals for Efficient Charge Storage”, J. Mater. Chem. A, 4, 3249-3252 (2016). DOI: 10.1039/c6ta00320f
