World's Best Scientists 2026 revealed!
Kikuko Hayamizu

Kikuko Hayamizu

D-Index & Metrics

Chemistry

D-Index
54
Citations
15895
World Ranking
12447
National Ranking
935

Kikuko Hayamizu publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Kikuko Hayamizu sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 247 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Kikuko Hayamizu D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Kikuko Hayamizu sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 54 D-Index — 31st percentile

31% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Kikuko Hayamizu is affiliated with the University of Tsukuba in Japan. Their research primarily lies at the intersection of engineering and materials science, with a focus on electrical and electronic engineering, materials chemistry, atomic and molecular physics, optics, nuclear and high energy physics, and physical and theoretical chemistry.

The scientist's work centers on advanced battery materials and technologies, exploring advancements in battery materials, solid-state spectroscopy, and crystallography. They also engage in spectroscopy and quantum chemical studies, applications of NMR spectroscopy, electrostatics and colloid interactions, as well as thermal expansion and ionic conductivity.

Among their recent research publications are the following papers: Dynamic ionic radius of alkali metal ions in aqueous solution: a pulsed-field gradient NMR study (2021, RSC Advances), Ceramic-glass pellet thickness and Li diffusion in NASICON-type LAGP (Li1.5Al0.5Ge1.5(PO4)3) studied by pulsed field gradient NMR spectroscopy (2022, Solid State Ionics), and several collaborative works including those not led by Hayamizu.

Key recent papers include:

  • Dynamic ionic radius of alkali metal ions in aqueous solution: a pulsed-field gradient NMR study (2021, RSC Advances)
  • Structural and Li-ion diffusion properties of lithium tantalum phosphate LiTa2PO8 (2020, Solid State Ionics)
  • Ceramic-glass pellet thickness and Li diffusion in NASICON-type LAGP (Li1.5Al0.5Ge1.5(PO4)3) studied by pulsed field gradient NMR spectroscopy (2022, Solid State Ionics)
  • Analysis of Ionic Transport and Electrode Interfacial Reaction, and NMR One-Dimensional Imaging of Ether-Based Polymer Electrolytes (2021, Journal of The Electrochemical Society)
  • Elucidation of Liquid Structures and Transport Properties of Highly Concentrated LiN(SO2F)2/Ethylene Carbonate Electrolytes (2023, The Journal of Physical Chemistry C)

Frequent co-authors collaborating with Kikuko Hayamizu include Tomoyuki Haishi, Kunimitsu Kataoka, Junji Akimoto, Norikazu Ishigaki, and Daisuke Morikawa.

The main publication venues for their work are:

  • Solid State Ionics
  • RSC Advances
  • Journal of The Electrochemical Society
  • The Journal of Physical Chemistry C
  • Recent Progress in Materials

Best Publications

  • Physicochemical properties and structures of room temperature ionic liquids. 2. Variation of alkyl chain length in imidazolium cation.

    Hiroyuki Tokuda;Kikuko Hayamizu;Kunikazu Ishii;Abu Bin Hasan Susan

  • Physicochemical Properties and Structures of Room Temperature Ionic Liquids. 1. Variation of Anionic Species

    Hiroyuki Tokuda;Kunikazu Ishii;Md. Abu Bin Hasan Susan;Seiji Tsuzuki

  • How Ionic Are Room-Temperature Ionic Liquids? An Indicator of the Physicochemical Properties

    Hiroyuki Tokuda;Seiji Tsuzuki;Abu Bin Hasan Susan;Kikuko Hayamizu

  • Brønsted acid-base ionic liquids as proton-conducting nonaqueous electrolytes

    Akihiro Noda;Md. Abu Bin Hasan Susan;Kenji Kudo;Shigenori Mitsushima

  • Magnitude and Directionality of Interaction in Ion Pairs of Ionic Liquids: Relationship with Ionic Conductivity

    Seiji Tsuzuki;Hiroyuki Tokuda;Kikuko Hayamizu;Masayoshi Watanabe

  • Pulse-Gradient Spin-Echo (1)H, (7)Li, and (19)F NMR Diffusion and Ionic Conductivity Measurements of 14 Organic Electrolytes Containing LiN(SO2CF3)2.

    Kikuko Hayamizu;Yuichi Aihara;Shigemasa Arai;Cirilo Garcia Martinez

  • Ionic Conduction and Ion Diffusion in Binary Room-Temperature Ionic Liquids Composed of [emim][BF4] and LiBF4

    Kikuko Hayamizu;Yuichi Aihara;Hiroe Nakagawa;Toshiyuki Nukuda

  • Chemical shift standards in high-resolution solid-state NMR (1) 13C, 29Si, and 1H nuclei.

    Shigenobu Hayashi;Kikuko Hayamizu

  • Temperature Dependence of Ion and Water Transport in Perfluorinated Ionomer Membranes for Fuel Cells

    Morihiro Saito;Kikuko Hayamizu;Tatsuhiro Okada

  • Imidazolium-Based Room-Temperature Ionic Liquid for Lithium Secondary Batteries Effects of Lithium Salt Concentration

    Shiro Seki;Yasutaka Ohno;Yo Kobayashi;Hajime Miyashiro

  • Comprehensive Refractive Index Property for Room-Temperature Ionic Liquids

    Shiro Seki;Seiji Tsuzuki;Kikuko Hayamizu;Yasuhiro Umebayashi;Yasuhiro Umebayashi

  • Proton-Conducting Properties of a Brønsted Acid−Base Ionic Liquid and Ionic Melts Consisting of Bis(trifluoromethanesulfonyl)imide and Benzimidazole for Fuel Cell Electrolytes

    Hirofumi Nakamoto;Akihiro Noda;Kikuko Hayamizu;Satoshi Hayashi

  • Degradation of Perfluorinated Ionomer Membranes for PEM Fuel Cells during Processing with H2O2

    Jinli Qiao;Morihiro Saito;Kikuko Hayamizu;Tatsuhiro Okada

  • 1H, 7Li, and 19F nuclear magnetic resonance and ionic conductivity studies for liquid electrolytes composed of glymes and polyetheneglycol dimethyl ethers of CH3O(CH2CH2O)nCH3 (n=3–50) doped with LiN(SO2CF3)2

    Kikuko Hayamizu;Etsuo Akiba;Toshinori Bando;Yuichi Aihara

  • Origin of the low-viscosity of [emim][(FSO2)2N] ionic liquid and its lithium salt mixture: experimental and theoretical study of self-diffusion coefficients, conductivities, and intermolecular interactions.

    Seiji Tsuzuki;Kikuko Hayamizu;Shiro Seki

  • Studies on the translational and rotational motions of ionic liquids composed of N-methyl-N-propyl-pyrrolidinium (P13) cation and bis(trifluoromethanesulfonyl)amide and bis(fluorosulfonyl)amide anions and their binary systems including lithium salts.

    Kikuko Hayamizu;Seiji Tsuzuki;Shiro Seki;Kenta Fujii

  • Temperature Dependence of Self-Diffusion Coefficients of Ions and Solvents in Ethylene Carbonate, Propylene Carbonate, and Diethyl Carbonate Single Solutions and Ethylene Carbonate + Diethyl Carbonate Binary Solutions of LiPF<sub>6</sub> Studied by NMR

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  • Effects of cation and anion on physical properties of room-temperature ionic liquids

    Shiro Seki;Takeshi Kobayashi;Yo Kobayashi;Katsuhito Takei

  • Unusual Li+ Ion Solvation Structure in Bis(fluorosulfonyl)amide Based Ionic Liquid

    Kenta Fujii;Hiroshi Hamano;Hiroyuki Doi;Xuedan Song

  • Raman Spectroscopic Studies and Ab Initio Calculations on Conformational Isomerism of 1-Butyl-3-methylimidazolium Bis-(trifluoromethanesulfonyl)amide Solvated to a Lithium Ion in Ionic Liquids: Effects of the Second Solvation Sphere of the Lithium Ion

    Yasuhiro Umebayashi;Shuto Mori;Kenta Fujii;Seiji Tsuzuki

  • Liquid structure of and Li+ ion solvation in bis(trifluoromethanesulfonyl)amide based ionic liquids composed of 1-ethyl-3-methylimidazolium and N-methyl-N-propylpyrrolidinium cations.

    Yasuhiro Umebayashi;Hiroshi Hamano;Shiro Seki;Babak Minofar

Frequent Co-Authors

Osamu Yamamoto
Osamu Yamamoto Mie University
Hachiro Nakanishi
Hachiro Nakanishi Tohoku University
Shiro Seki
Shiro Seki Kogakuin University
Seiji Tsuzuki
Seiji Tsuzuki University of Tokyo
Akihisa Matsuda
Akihisa Matsuda National Institute of Advanced Industrial Science and Technology
Masayoshi Watanabe
Masayoshi Watanabe Yokohama National University
Yasuhiro Umebayashi
Yasuhiro Umebayashi Niigata University
Nobuyuki Imanishi
Nobuyuki Imanishi Mie University
Hiroyuki Takeda
Hiroyuki Takeda University of Tokyo
Yasuo Takeda
Yasuo Takeda Mie University

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