Hisanori Ando

National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan

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Publications (54)161.49 Total impact

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    Masaru Yao · Hikaru Sano · Hisanori Ando · Tetsu Kiyobayashi
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    ABSTRACT: Is it possible to exceed the lithium redox potential in electrochemical systems? It seems impossible to exceed the lithium potential because the redox potential of the elemental lithium is the lowest among all the elements, which contributes to the high voltage characteristics of the widely used lithium ion battery. However, it should be possible when we use a molecule-based ion which is not reduced even at the lithium potential in principle. Here we propose a new model system using a molecular electrolyte salt with polymer-based active materials in order to verify whether a molecular ion species serves as a charge carrier. Although the potential of the negative-electrode is not yet lower than that of lithium at present, this study reveals that a molecular ion can work as a charge carrier in a battery and the system is certainly a molecular ion-based "rocking chair" type battery.
    Preview · Article · Jun 2015 · Scientific Reports
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    ABSTRACT: The applicability of the redox reactions of 5,8-dihydroxy-1,4-naphthoquinone (1) and its lithium salt, 5,8-dihydroxy-1,4-naphthoquinone dilithium salt (2), as positive electrode active materials for rechargeable lithium batteries was investigated. The prepared electrodes showed initial discharge capacities of 170 mAh g(1)−1 with an average voltage of 2.2 V vs. Li+/Li, and 247 mAh g(2)−1 with an average voltage of 2.1 V vs. Li+/Li for 1 and 2, respectively. The obtained discharge capacities correspond to their two-electron redox behaviors. While the electrode using 1 suffered from a poor cycle-stability, the one using 2 underwent many cycles; i.e., after a small drop in the capacity at the first cycle, the capacity of the latter electrode hardly decayed during the subsequent 100 cycles. The effects of the introduction of ionic groups on the physical properties including the cycle stability were discussed along with quantum chemistry calculation results.
    Preview · Article · Dec 2014 · Energy Procedia
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    Hisanori Ando
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    ABSTRACT: Catalytic hydrogenation of carbon dioxide was carried out over Ni-Si-O-x catalysts prepared by the sol-gel method. The M/Ni-Si-O-x (M=Na, K, Rb, Cs, Mg, Ca, Sr, Ba, and La) catalysts were prepared by the wet impregnation method and their catalytic activities were tested. Methane was exclusively produced over the Ni-Si-Ox and M/Ni-Si-O-x catalysts under the reaction conditions of 5 MPa at 473 K. The change of the catalytic activity is investigated with respect to the electronegativity of the M. The electronic interaction between nickel and the M is discussed on the basis of XPS results. (C) 2013 The Authors. Published by Elsevier B.V.
    Preview · Article · Dec 2013 · Energy Procedia
  • Source
    Masaru Yao · Hisanori Ando · Tetsu Kiyobayashi
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    ABSTRACT: The performance of 2,5-di-n-decyloxy-1,4-benzoquinone (DDBQ) as an active material for rechargeable lithium batteries was investigated. The prepared electrode in which DDBQ was incorporated showed an initial discharge capacity of 125 mAh/g(DDBQ) with an average voltage of 2.5 V vs. Li+/Li. The obtained discharge capacity corresponds to a benzoquinone-based two-electron redox behavior. In the cycle-life test, the prepared DDBQ-electrode showed a relatively good performance; it maintained about 60% of the initial capacity after 20 cycles. The observed cycle-stability was compared to those of the other dialkoxybenzoquinones bearing shorter alkoxy chains, such as the methoxy, ethoxy, and propoxy groups. The correlation between the cycle-stability and the solubility in the electrolyte solvent was discussed. (C) 2013 The Authors. Published by Elsevier B.V.
    Preview · Article · Dec 2013 · Energy Procedia
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    ABSTRACT: Poly-(l)-lactic acid (PLLA) was solvolyzed with polyethylene glycol (PEG) with different ratios of PLLA and PEG under dry conditions. The obtained materials were found to be the block copolymer of PLLA and PEG (PLLA/PEG) from NMR analysis of which the number average molecular weights ranged from 6 × 103 to 2 × 104 g mol−1. The films of stereocomplex (SC) of PLLA/PEG and poly-(d)-lactic acid (PDLA) were prepared by solvent casting method, and the thermal properties and the contact angle of the films were examined. The melting temperatures of PLLA/PEG and the corresponding SC with PDLA linearly decreased with the increase in the PEG content from 110 to 170 °C. The contact angle of PLLA/PEG became lower when the PEG content in the PLLA/PEG was higher, while their SCs with PDLA showed no clear correlation with the PEG content. Biodegradability of PLLA/PEGs and their SCs were also investigated with respect to the EG content.
    No preview · Article · May 2013 · Polymer Degradation and Stability
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    ABSTRACT: Polyamide 4 containing an azo group (azo‐PA4) was synthesized by the ring‐opening polymerization of 2‐pyrrolidone when 4,4′‐azobiscyanopentanoyl chloride was used as an initiator. It was possible to control the molecular weight (MW) of the azo‐PA4s through the concentration of the initiator to some extent, and the highest weight‐average MW obtained was 35 × 103. To assess the initiation activity of the azo‐PA4 for radical polymerization, styrene (St) was used as a vinyl monomer. The azo‐PA4 was found to initiate the radical polymerization of St to produce polymers. Analyses by FT‐IR spectroscopy, 1H‐NMR, and differential scanning calorimetry after the homopolymers [polyamide 4 (PA4) and polystyrene (PSt)] were removed by Soxhlet extraction showed that the remaining polymer was PA4‐block‐PSt. Azo‐PA4 was also found to have an initiation activity for other vinyl monomers (methyl methacrylate, vinyl acetate, etc.). © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
    No preview · Article · Nov 2012 · Journal of Applied Polymer Science
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    ABSTRACT: 4-Aminobutylic acid (GABA) is a monomer of plastic polyamide 4. Bio-based polyamide 4 can be produced by using GABA obtained from biomass. The production of L-glutamic acid (Glu) from biomass has been established. GABA is produced by decarboxylation of Glu in biological process. High-performance liquid chromatography (HPLC) with derivatization is generally used to determine the concentration of GABA and Glu in reacted solution samples for the efficient production of GABA. In this study, we have investigated the rapid determination of GABA and Glu by capillary electrophoresis-mass spectrometry (CE-MS) without derivatization. The determination was achieved with the use of a shortened capillary, a new internal standard for GABA, and optimization of sheath liquid composition. Determined concentrations of GABA and Glu by CE-MS were compared with those by pre-column derivatization HPLC with phenylisothiocyanate. The determined values by CE-MS were close to those by HPLC with pre-column derivatization. These results suggest that the determination of GABA and Glu in reacted solution is rapid and simplified by the use of CE-MS. Copyright © 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim.
    No preview · Article · Jan 2012 · Journal of Separation Science
  • Hisanori Ando · Yuichi Ichihashi · Keiko Tawa · Mutsuo Tanaka
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    ABSTRACT: An X-ray absorption fine structure (XAFS) study has been conducted to reveal the local structure and chemical state of the copper in the complex of an acetylacetonate-based ligand (L1) and copper ion in acetonitrile solution. The copper ion in the complex was found to be divalent from the Cu K-edge X-ray absorption near-edge structure (XANES) spectrum. The FEFF (ab initio multiple scattering calculations of XAFS) were performed with the model compounds, whose structures were optimized by using MOPAC program with AM1 Hamiltonian. The comparative study of the experimental XAFS spectra and theoretical calculations from FEFF gave the perspectives for clarifying the coordination structure of the complex of L1 and copper ion.
    No preview · Article · Dec 2011 · Journal of Inclusion Phenomena
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    ABSTRACT: Tetraphenylstibonium hydroxide was an effective catalyst for the reaction of trimethylsilyl azide with oxiranes to give silylated vicinal azidohydrins. This azidation reaction was chemoselective to the oxirane moieties, while aldehyde was tolerable under the reaction conditions. Tetraphenylstibonium azide arising from tetraphenylstibonium hydroxide and trimethylsilyl azide was assumed to be the azidation species.
    No preview · Article · Nov 2010 · ChemInform
  • M. TANAKA · M. FUJIWARA · H. ANDO · Y. SOUMA
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    ABSTRACT: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
    No preview · Article · Sep 2010 · ChemInform
  • M. FUJIWARA · M. TANAKA · A. BABA · H. ANDO · Y. SOUMA
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    ABSTRACT: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
    No preview · Article · Jun 2010 · ChemInform
  • [Show abstract] [Hide abstract]
    ABSTRACT: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
    No preview · Article · Jun 2010 · ChemInform
  • M. TANAKA · M. FUJIWARA · H. ANDO · Y. SOUMA
    [Show abstract] [Hide abstract]
    ABSTRACT: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
    No preview · Article · May 2010 · ChemInform
  • Hisanori ANDO · Keiko TAWA · Mutsuo TANAKA
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    ABSTRACT: A new acetylacetone-based ligand (Ligand 1) bearing pyrene unit was synthesized and the fluorescence and metal-ion recognition properties were investigated in the presence of a different metal ion in acetonitrile solution. The fluorescence emission of Ligand 1 was strongly quenched by complexation with Cu2+ while no significant change was observed in the presence of other metal ions. The metal-ion selectivity changed from Cu2+ to Ni2+ when glycine moiety (–NH–CH2–CO–) was introduced into Ligand 1 as spacer. This result implies that hydrogen-bonding induced by the glycine moiety affects the binding ability of ligands to metal ions, resulting in change of the metal-ion selectivity.
    No preview · Article · Dec 2009 · Journal of Environmental Sciences
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    ABSTRACT: Oxymethylcrowned spirobenzopyran 1 and pyrenylspirobenzopyran 2 were synthesized, and fluorescence emission of their corresponding merocyanine form was examined in the presence of metal ions. For 2, fluorescence emission derived from the pyrene moiety was completely quenched by photoinduced electron transfer (PET) of the nitrogen atom when the merocyanine form was not produced, namely, without metal ions. However, when 2 was converted to the merocyanine form by the complexation of its crown ether with a metal ion, fluorescence resonance energy transfer (FRET) from the pyrene to the merocyanine moieties took place to produce fluorescence emission. This result demonstrates that the spirobenzopyran isomerization can function as a fluorescence emission switch. Fluorescence quantum yield measurement for 1 and 2 showed that fluorescence emission depends on the binding metal ion in which the fluorescence quantum yield generally increased with the increase of metal ion radius.
    No preview · Article · Jul 2004 · Tetrahedron
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    ABSTRACT: Chromene derivatives bearing oxymethyl-12-crown-4 (1), -15-crown-5 (2), -18-crown-6 (3) ether moieties, and non-cyclic analogue (4) were synthesized, and their metal ion binding properties and photochromism were examined. NMR titration with alkali metal ions revealed that 1 formed a 1:2 complex (metal ion: ligand) with Na+, while Li+ afforded a 1:1 complex of 1. In cases of K+ and Rb+, the complexes were a mixture of 1:1 and 1:2 complexes, but the formation of 1:1 complex was observed again with Cs+. Under UV irradiation, however, the complex stoichiometry of 1 with all alkali metal ions was 1:1. As a comparison of NMR spectra between the Li+ and Na+ complexes of 1 indicated considerable upfield shift for the chromene moiety of the Na+ complex, π–π stacking of the chromene moiety seems to induce formation of the 1:2 complex. These results indicate that the chromene moiety is not only to show photochromism but also to induce aggregation to form the 1:2 complex resulted in switching of the complex stoichiometry by UV irradiation. The formation of 1:2 complex appeared only with 1 because flexibility of the crown moieties for 2 and 3 interfered the formation of 1:2 complex. Studies on photochromism in the presence of a metal ion demonstrated that the chromene derivatives bearing crown ether moieties show ion-responsive photochromism depending on the metal ion binding ability of their crown ether moieties.
    No preview · Article · Mar 2004 · Tetrahedron
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    ABSTRACT: Crowned chromenes − four novel naphthopyrans (chromenes) bearing monoaza-12-crown-4, -15-crown-5, -18-crown-6, and a noncyclic analogue at the 5-position − were synthesized, and their photochromism in acetonitrile was examined in the presence of alkali and alkaline-earth metal ions. Incorporation of crown ether units to chromene moieties facilitated to a great extent both the thermal isomerization and photoisomerization of the chromene moiety, reflecting the metal-ion-binding ability of the crown ether moiety. Comparison of the crowned chromenes with the corresponding crowned spirobenzopyrans reveals that photochromism of the crowned chromene reflects an interaction between the metal ion and the crown ether moiety that is stronger than that of the crowned spirobenzopyran, and shows only positive photochromism with significant red-shifts in the UV/Vis absorption spectra, in contrast to the crowned spirobenzopyrans reported previously. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
    No preview · Article · Jun 2003 · European Journal of Organic Chemistry
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    ABSTRACT: Novel t-butylcalix[4]arenes bearing several chromene molecules were synthesized, and their photochromism and metal-ion binding ability were examined with alkali and alkaline-earth metal ions. While the metal-ion binding ability of the t-butylcalix[4]arene moiety facilitated the photoisomerization of the chromene moiety to a great extent, the chromene moiety influenced the metal-ion binding ability of the t-butylcalix[4]arene moiety through lariat effect. Therefore, the metal-ion that induced the most facilitated photoisomerization of the chromene moiety was shifted drastically from Li+ to Ba2+ with the increase of the incorporated chromene number. Even without metal ions, the interaction among the chromene moieties derived from the cone-conformation of the t-butylcalix[4]arene moiety also facilitated the photoisomerization.
    Preview · Article · Jun 2003 · Tetrahedron
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    ABSTRACT: Spirobenzopyrans bearing monoazathiacrown ethers and noncyclic analogues were synthesized, and their ion-responsive photochromism depending on the dual metal ion interaction with the crown ether and the phenolate anion moieties was examined using alkali and alkaline-earth metal ions, Ag(+), Tl(+), Pb(2+), Hg(2+), and Zn(2+). The prepared spirobenzopyrans showed a selective binding ability to Mg(2+) and Ag(+) with negative and positive photochromism, respectively. Among the metal ions, only Ag(+) facilitated photoisomerization to the corresponding merocyanine form. Depending on the ring size of the monoazathiacrown ether moieties, soft metal ions such as Hg(2+) and Ag(+) showed significant shifts in the UV-vis absorption spectra, while hard metal ions such as Mg(2+), Zn(2+), and Pb(2+) did not afford any meaningful shift. This result reflects that the monoazathiacrown ether and phenolate anion moieties prefer soft and hard metal ions, respectively. Therefore, the Mg(2+) and Ag(+) selectivities are mainly derived from the phenolate anion and monoazathiacrown ether moieties, respectively. On the other hand, a spirobenzothiapyran bearing 3,9-dithia-6-monoazaundecane showed a remarkable selectivity to Ag(+).
    No preview · Article · May 2002 · The Journal of Organic Chemistry
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    ABSTRACT: The influence of metal ion interaction with crowned spirobenzopyrans on the photoisomerization behavior was investigated through the use of various solvents, crowned spirobenzopyrans, and metal ions. Studies on the photoisomerization behavior of crowned spirobenzopyrans in various solvents revealed that solvation of the phenolate anion moiety in the merocyanine form induced photoisomerization back to the spiropyran form, giving rise to negative photochromism. Metal ion interaction with the phenolate anion moiety similarly caused photoisomerization back to the spiropyran form, while that with the crown ether moiety just produced a polar environment and its influence on photoisomerization behavior was dependent on the affinity of the metal ion captured by the crown ether moiety for the phenolate anion. Therefore, photochromic switching of crowned spirobenzopyrans between positive and negative to control the metal ion interaction with the phenolate anion moiety through the crown ether moiety is possible. This finding suggests a molecular design method for crowned spirobenzopyrans showing desired ion-responsive photochromism.
    No preview · Article · Jan 2002 · European Journal of Organic Chemistry

Publication Stats

697 Citations
161.49 Total Impact Points

Institutions

  • 2001-2015
    • National Institute of Advanced Industrial Science and Technology
      • • Division of Environment and Energy
      • • Research Institute for Ubiquitous Energy Devices
      • • Research Center for Stem Cell Engineering
      Tsukuba, Ibaraki, Japan
  • 1997
    • Osaka University
      • Division of Applied Chemistry
      Suika, Ōsaka, Japan
  • 1996
    • Mohawk Innovative Technology, Inc.
      Albany, New York, United States
  • 1993
    • Industrial Research Institute of Ishikawa
      Ishiza, Okinawa, Japan