World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
49
Citations
9562
World Ranking
14738
National Ranking
1154

Kazuhide Koike 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 Kazuhide Koike 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: 95 publications — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Kazuhide Koike 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 Kazuhide Koike 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: 49 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Overview

Kazuhide Koike is affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. Their research primarily focuses on the field of Chemistry, with contributions spanning Organic Chemistry, Renewable Energy, Sustainability and the Environment, Electrochemistry, Oncology, and Inorganic Chemistry.

The main topics they investigate include:

  • Radical Photochemical Reactions
  • CO2 Reduction Techniques and Catalysts
  • Electrochemical Analysis and Applications
  • Metal complexes synthesis and properties
  • Metal-Catalyzed Oxygenation Mechanisms
  • Photochemistry and Electron Transfer Studies
  • Free Radicals and Antioxidants

Kazuhide Koike has published work in multiple scientific journals. Some of their recent papers are:

  • "Factors determining formation efficiencies of one-electron-reduced species of redox photosensitizers," 2020, The Journal of Chemical Physics
  • "Synthesis and Light-Harvesting Functions of Ring-Shaped Re(I) Trinuclear Complexes Connected with an Emissive Ru(II) Complex," 2021, JACS Au
  • "The main factor that determines the formation-efficiencies of photochemically derived one-electron-reduced species," 2025, Chemical Science
  • "Erratum to 'Rate constants and conversion ratios for aqueous-phase reactions of SO4 with CnF2n+1C(O)O (n = 4-7) at 298 K'," 2024, International Journal of Chemical Kinetics

Frequent collaborators in their research include:

  • Osamu Ishitani
  • Kyohei Ozawa
  • Yusuke Tamaki
  • Kei Kamogawa
  • Yasuomi Yamazaki

Koike's work has been published across various venues, reflecting a range of interests within chemistry:

  • The Journal of Chemical Physics
  • JACS Au
  • Chemical Science
  • International Journal of Chemical Kinetics

Best Publications

  • Development of an Efficient Photocatalytic System for CO2 Reduction Using Rhenium(I) Complexes Based on Mechanistic Studies

    Hiroyuki Takeda;Kazuhide Koike;Haruo Inoue;Osamu Ishitani

  • Decomposition of Environmentally Persistent Perfluorooctanoic Acid in Water by Photochemical Approaches

    Hisao Hori;Etsuko Hayakawa;Hisahiro Einaga;Shuzo Kutsuna

  • Activation of graphitic carbon nitride (g-C3N4) by alkaline hydrothermal treatment for photocatalytic NO oxidation in gas phase

    Taizo Sano;Sakiko Tsutsui;Kazuhide Koike;Tsutomu Hirakawa

  • Artificial Z-scheme constructed with a supramolecular metal complex and semiconductor for the photocatalytic reduction of CO2.

    Keita Sekizawa;Kazuhiko Maeda;Kazuhiko Maeda;Kazunari Domen;Kazuhide Koike

  • Architecture of Supramolecular Metal Complexes for Photocatalytic CO2 Reduction: Ruthenium−Rhenium Bi- and Tetranuclear Complexes

    Bobak Gholamkhass;Hiroaki Mametsuka;Kazuhide Koike;Toyoaki Tanabe

  • Photochemical reduction of CO₂ using TiO₂: effects of organic adsorbates on TiO₂ and deposition of Pd onto TiO₂.

    Tatsuto Yui;Akira Kan;Chieko Saitoh;Kazuhide Koike

  • Photocatalytic CO2 reduction with high turnover frequency and selectivity of formic acid formation using Ru(II) multinuclear complexes

    Yusuke Tamaki;Tatsuki Morimoto;Kazuhide Koike;Osamu Ishitani

  • Substantial improvement in the efficiency and durability of a photocatalyst for carbon dioxide reduction using a benzoimidazole derivative as an electron donor

    Yusuke Tamaki;Kazuhide Koike;Tatsuki Morimoto;Osamu Ishitani

  • Preparation of a visible light-responsive photocatalyst from a complex of Ti4+ with a nitrogen-containing ligand

    Taizo Sano;Nobuaki Negishi;Kazuhide Koike;Koji Takeuchi

  • Efficient photocatalytic CO2 reduction using [Re(bpy) (CO)3{P(OEt)3}]+

    Hisao Hori;Frank P.A. Johnson;Kazuhide Koike;Osamu Ishitani

  • Mechanism of the Photochemical Ligand Substitution Reactions of fac-[Re(bpy)(CO)3(PR3)]+ Complexes and the Properties of Their Triplet Ligand-Field Excited States

    Kazuhide Koike;Nobuaki Okoshi;Hisao Hori;Koji Takeuchi

  • Highly Efficient and Robust Photocatalytic Systems for CO2 Reduction Consisting of a Cu(I) Photosensitizer and Mn(I) Catalysts

    Hiroyuki Takeda;Hiroko Kamiyama;Kouhei Okamoto;Mina Irimajiri

  • Control of photochemical, photophysical, electrochemical, and photocatalytic properties of rhenium(I) complexes using intramolecular weak interactions between ligands.

    Hideaki Tsubaki;Akiko Sekine;Yuji Ohashi;Kazuhide Koike

  • Highly efficient supramolecular photocatalysts for CO2 reduction using visible light.

    Shunsuke Sato;Kazuhide Koike;Haruo Inoue;Osamu Ishitani

  • Photocatalytic CO2 reduction to formic acid using a Ru(II)-Re(I) supramolecular complex in an aqueous solution.

    Akinobu Nakada;Kazuhide Koike;Takuya Nakashima;Tatsuki Morimoto

  • Development of highly efficient supramolecular CO2 reduction photocatalysts with high turnover frequency and durability

    Yusuke Tamaki;Katsuhiro Watanabe;Kazuhide Koike;Haruo Inoue

  • Ring-shaped Re(I) multinuclear complexes with unique photofunctional properties.

    Tatsuki Morimoto;Chiaki Nishiura;Marina Tanaka;Jana Rohacova

  • Highly efficient, selective, and durable photocatalytic system for CO2 reduction to formic acid

    Yusuke Tamaki;Kazuhide Koike;Osamu Ishitani

  • Photophysical Behavior of a New CO2 Reduction Catalyst, Re(CO)2(bpy){P(OEt)3}2+

    Osamu Ishitani;Michael W. George;Takashi Ibusuki;Frank P. A. Johnson

  • Architecture of supramolecular metal complexes for photocatalytic CO2 reduction: III: Effects of length of alkyl chain connecting photosensitizer to catalyst

    Kazuhide Koike;Sayoko Naito;Shunsuke Sato;Yusuke Tamaki

Frequent Co-Authors

Osamu Ishitani
Osamu Ishitani Tokyo Institute of Technology
Hisahiro Einaga
Hisahiro Einaga Kyushu University
Ryuichi Arakawa
Ryuichi Arakawa Kansai University
Shinji Inagaki
Shinji Inagaki Toyota Central Research and Development Laboratories (Japan)
Kazuhiko Maeda
Kazuhiko Maeda Institute of Science Tokyo
Hiroshi Miyasaka
Hiroshi Miyasaka Osaka University
Antonín Vlček
Antonín Vlček Czech Academy of Sciences
Michael W. George
Michael W. George University of Nottingham
Kazunari Domen
Kazunari Domen University of Tokyo
Shin-ya Koshihara
Shin-ya Koshihara Tokyo Institute of Technology

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