A03 内田 さやか
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内田 さやか |
公募 A03 |
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所 属 |
東京大学 大学院総合文化研究科 |
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役 職 |
准教授 |
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連絡先 |
csayaka@mail.ecc.u-tokyo.ac.jp |
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研究室HP |
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研究課題 |
無機イオン結晶空間内の単分子ポリマーによる指向性イオン輸送 |
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研究内容 |
有機化学と比較して、無機化学分野における異方性や指向性の導入は非常に立ち遅れているといえる。無機金属酸化物クラスターであるポリオキソメタレート（POM）は、表面電荷密度の低いソフトなアニオンであるため、プロトンなどのカチオンの伝導を効率良くアシストできることが知られる。本研究では、POMとアルカリ金属イオンを構成ブロックとする無機イオン結晶のチャネル内に、酸性あるいは塩基性官能基を有するポリマーを単分子として導入し、組成－構造―機能の相関を明確にしたうえで、ポリマーのコンフォメーション／セグメント運動を活用した高速プロトン伝導実現することを目的とする。X線／中性子線回折／散乱により、単分子ポリマーが螺旋を描くことが明らかとなった場合、微量のキラルなアミノ酸の添加による不斉増幅により右巻／左巻の制御を行う。単分子ポリマーのコンフォメーションは、プロトンやアルカリ金属イオンなどのイオン輸送の指向性、すなわち、バルク全体のイオン輸送の効率と大きく関わると考えている。 |
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| 専門分野 |
無機化学、錯体化学、固体物性化学 |
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| 研究キーワード |
ポリオキソメタレート、イオン結晶、多孔体、イオン伝導 |
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研究業績
2021
[15] Formation of Mixed-Valence Luminescent Silver Clusters via Cation-Coupled Electron-Transfer in a Redox-Active Ionic Crystal Based on a Dawson-type Polyoxometalate with Closed Pores,
Naoya Haraguchi; Tomoki Okunaga; Yuto Shimoyama; Naoki Ogiwara; Soichi Kikkawa; Seiji Yamazoe; Miki Inada; Takashi Tachikawa; Sayaka Uchida, Eur. J. Inog. Chem., , 2021
DOI: 10.1002/ejic.202100101.
Naoya Haraguchi; Tomoki Okunaga; Yuto Shimoyama; Naoki Ogiwara; Soichi Kikkawa; Seiji Yamazoe; Miki Inada; Takashi Tachikawa; Sayaka Uchida, Eur. J. Inog. Chem., , 2021
DOI: 10.1002/ejic.202100101.
[14] Structure-Function Relationships of Porous Ionic Crystals (PICs) Based on Polyoxometalate Anions and Oxo-Centered Trinuclear Metal Carboxylates as Counter Cations,
Yuto Shimoyama; Sayaka Uchida, Chem. Lett., 50, 21 – 30, 2021
DOI: 10.1246/cl.200603.
Yuto Shimoyama; Sayaka Uchida, Chem. Lett., 50, 21 – 30, 2021
DOI: 10.1246/cl.200603.
2020
[13] Amorphous High-Surface-Area Aluminum Hydroxide-Bicarbonates for Highly Efficient Removal of Methyl Orange from Water,
Yuki Kinoshita; Yuto Shimoyama; Yoichi Masui; Yoshiteru Kawahara; Kenji Arai; Teruki Motohashi; Yasuto Noda; Sayaka Uchida, Langmuir, 36, 6277 – 6285, 2020
DOI: 10.1021/acs.langmuir.0c00021.
Yuki Kinoshita; Yuto Shimoyama; Yoichi Masui; Yoshiteru Kawahara; Kenji Arai; Teruki Motohashi; Yasuto Noda; Sayaka Uchida, Langmuir, 36, 6277 – 6285, 2020
DOI: 10.1021/acs.langmuir.0c00021.
[12] Effect of Molecular Weights of Confined Single-Chain Poly(allylamine) toward Proton Conduction in Inorganic Frameworks Based on Preyssler-Type Polyoxometalate,
Tsukasa Iwano; Satoru Miyazawa; Sayaka Uchida, Inorg. Chim. Acta, 499, 119204, 2020
DOI: 10.1016/j.ica.2019.119204.
Tsukasa Iwano; Satoru Miyazawa; Sayaka Uchida, Inorg. Chim. Acta, 499, 119204, 2020
DOI: 10.1016/j.ica.2019.119204.
2019
[11] Confinement of Poly(allylamine) in Preyssler-Type Polyoxometalate and Potassium Ion Framework for Enhanced Proton Conductivity,
Tsukasa Iwano; Satoru Miyazawa; Ryota Osuga; Junko N. Kondo; Kayako Honjo; Takashi Kitao; Takashi Uemura; Sayaka Uchida, Communications Chemistry, 9, 2019
DOI: 10.1038/s42004-019-0111-x.
Tsukasa Iwano; Satoru Miyazawa; Ryota Osuga; Junko N. Kondo; Kayako Honjo; Takashi Kitao; Takashi Uemura; Sayaka Uchida, Communications Chemistry, 9, 2019
DOI: 10.1038/s42004-019-0111-x.
[10] Frontiers and Progress in Cation-Uptake and Exchange Chemistry of Polyoxometalate-Based Compounds,
Sayaka Uchida, Chem. Sci., 10, 7670 – 7679, 2019
DOI: 10.1039/C9SC02823D.
Sayaka Uchida, Chem. Sci., 10, 7670 – 7679, 2019
DOI: 10.1039/C9SC02823D.
[9] Structure-Function Relationships in Fructose Dehydration to 5-Hydroxymethylfurfural under Mild Conditions by Porous Ionic Crystals Constructed with Analogous Building Blocks,
Takumi Yamada; Keigo Kamata; Eri Hayashi ; Michikazu Hara; Sayaka Uchida, ChemCatChem, 11, 3745 – 3749, 2019
DOI: 10.1002/cctc.201900614.
Takumi Yamada; Keigo Kamata; Eri Hayashi ; Michikazu Hara; Sayaka Uchida, ChemCatChem, 11, 3745 – 3749, 2019
DOI: 10.1002/cctc.201900614.
[8] Rapid Formation of Small Mixed-Valence Luminescent Silver Clusters via Cation-Coupled Electron-Transfer in Redox-Active Porous Ionic Crystal Based on Dodecamolybdophosphate,
Sayaka Uchida; Tomoki Okunaga; Yuki Harada; Shotaro Magira; Yasuto Noda; Takashi Mizuno; Takashi Tachikawa, Nanoscale, 11, 5460 – 5466, 2019
DOI: 10.1039/C9NR00103D.
Sayaka Uchida; Tomoki Okunaga; Yuki Harada; Shotaro Magira; Yasuto Noda; Takashi Mizuno; Takashi Tachikawa, Nanoscale, 11, 5460 – 5466, 2019
DOI: 10.1039/C9NR00103D.
2018
[7] Spatial-Temporal Characteristics of Confined Polymer Motion Determine Proton Conduction of Polyoxometalate-Poly(ethylene glycol) Hybrid Nanocomposites,
Huarui Wu; Lengwan Li; Masaki Tsuboi; Yongqiang Cheng; Weiyu Wang; Eugene Mamontov; Sayaka Uchida; Zhe Wang; Panchao Yin, J. Phys. Chem. Lett., 9, 5572 – 5577, 2018
DOI: 10.1021/acs.jpclett.8b02113.
Huarui Wu; Lengwan Li; Masaki Tsuboi; Yongqiang Cheng; Weiyu Wang; Eugene Mamontov; Sayaka Uchida; Zhe Wang; Panchao Yin, J. Phys. Chem. Lett., 9, 5572 – 5577, 2018
DOI: 10.1021/acs.jpclett.8b02113.
[6] Effect of Ammonium Ion toward Proton Conduction in Porous Ionic Crystals Based on Keggin-type Silicododecatugstate,
Satoru Miyazawa; Reina Hosono; Ryota Osuga; Junko Nomura Kondo; Sayaka Uchida, Acta. Cryst. C, 74, 1289 – 1294, 2018
DOI: 10.1107/S2053229618008227.
Satoru Miyazawa; Reina Hosono; Ryota Osuga; Junko Nomura Kondo; Sayaka Uchida, Acta. Cryst. C, 74, 1289 – 1294, 2018
DOI: 10.1107/S2053229618008227.
[5] Rapid Uptake / Release of Cs+ in Isostructural Redox-Active Porous Ionic Crystals with Large Molecular Size and Easily Reducible Dawson-Type Polyoxometalates as Building Blocks,
Shota Hitose; Sayaka Uchida, Inorg. Chem., 57, 4833 – 4836, 2018
DOI: 10.1021/acs.inorgchem.8b00801.
Shota Hitose; Sayaka Uchida, Inorg. Chem., 57, 4833 – 4836, 2018
DOI: 10.1021/acs.inorgchem.8b00801.
[4] Porous Ionic Crystals Based on Polyoxometalates,
Sayaka Uchida, Structure and Bonding, 176, 65 – 87, 2018
DOI: 10.1007/430_2017_3.
Sayaka Uchida, Structure and Bonding, 176, 65 – 87, 2018
DOI: 10.1007/430_2017_3.
[3] Highly pH-Dependent Facile-Preparation of Amorphous High Surface Area Aluminum Hydroxide-Bicarbonates with [Al13O4(OH)24(H2O)12]7+,
Yuki Kinoshita; Ryota Osuga; Junko N. Kondo; Yoshiyuki Ogasawara; Sayaka Uchida, Chem. Lett., 47, 668 – 670, 2018
DOI: 10.1246/cl.180103.
Yuki Kinoshita; Ryota Osuga; Junko N. Kondo; Yoshiyuki Ogasawara; Sayaka Uchida, Chem. Lett., 47, 668 – 670, 2018
DOI: 10.1246/cl.180103.
2017
[2] High Proton Conduction in Crystalline Composites Based on Preyssler-type Polyoxometalates and Polymers under Non-humidified or Humidified Conditions,
Kazuma Niinomi; Satoru Miyazawa; Mitsuhiro Hibino; Noritaka Mizuno; Sayaka Uchida, Inorg. Chem., 56, 24, 15187 – 15193, 2017
DOI: 10.1021/acs.inorgchem.7b02524.
Kazuma Niinomi; Satoru Miyazawa; Mitsuhiro Hibino; Noritaka Mizuno; Sayaka Uchida, Inorg. Chem., 56, 24, 15187 – 15193, 2017
DOI: 10.1021/acs.inorgchem.7b02524.
[1] Proton conduction in alkali metal ion-exchanged porous ionic crystals,
Sayaka Uchida; Reina Hosono; Ryo Eguchi; Ryosuke Kawahara; Ryota Osuga; Junko Nomura Kondo; Mitsuhiro Hibino; Noritaka Mizuno, Phys. Chem. Chem. Phys., 19, 29077 – 29083, 2017
DOI: 10.1039/C7CP04619G.
Sayaka Uchida; Reina Hosono; Ryo Eguchi; Ryosuke Kawahara; Ryota Osuga; Junko Nomura Kondo; Mitsuhiro Hibino; Noritaka Mizuno, Phys. Chem. Chem. Phys., 19, 29077 – 29083, 2017
DOI: 10.1039/C7CP04619G.