World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 49 14738 13272 1154 1047 95 9562

Kazuhide Koike publications per year

The chart shows the history of publications by Kazuhide Koike between 1983 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kazuhide Koike published across 43 years, from 1983 to 2025, averaging 2.2 papers a year. Output peaked at 8 publications in 2015. 3 of the 96 publications appeared in the last two years.

No. of publications
2 4 6 8
Bar chart. Horizontal axis: year, 1983 to 2025. Vertical axis: number of publications, 0 to 8. Peak 8 publications in 2015. 1983: 1 publication 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 1 publication 1989: 0 publications 1990: 1 publication 1991: 0 publications 1992: 0 publications 1993: 1 publication 1994: 3 publications 1995: 1 publication 1996: 3 publications 1997: 5 publications 1998: 2 publications 1999: 1 publication 2000: 4 publications 2001: 1 publication 2002: 3 publications 2003: 4 publications 2004: 3 publications 2005: 4 publications 2006: 0 publications 2007: 5 publications 2008: 6 publications 2009: 3 publications 2010: 1 publication 2011: 3 publications 2012: 5 publications 2013: 7 publications 2014: 3 publications 2015: 8 publications 2016: 5 publications 2017: 2 publications 2018: 2 publications 2019: 3 publications 2020: 1 publication 2021: 1 publication 2022: 0 publications 2023: 0 publications 2024: 1 publication 2025: 2 publications
1983 2025

96 publications in total across all disciplines

View publications per year as a table
Kazuhide Koike: publications per year, 1983 to 2025
Year Publications
1983 1
1984 0
1985 0
1986 0
1987 0
1988 1
1989 0
1990 1
1991 0
1992 0
1993 1
1994 3
1995 1
1996 3
1997 5
1998 2
1999 1
2000 4
2001 1
2002 3
2003 4
2004 3
2005 4
2006 0
2007 5
2008 6
2009 3
2010 1
2011 3
2012 5
2013 7
2014 3
2015 8
2016 5
2017 2
2018 2
2019 3
2020 1
2021 1
2022 0
2023 0
2024 1
2025 2
Total 96
Download as CSV

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.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 81–100 publications, is where this scientist sits. 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
61–80 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.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302 95
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
Download as CSV

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.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 48–49 D-Index, is where this scientist sits. 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
40–41 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.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835 49
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
Download as CSV

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

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Chemistry in the USA opens doors to various related online degrees and diverse career pathways. For those interested in legal aspects connected to chemical industries, pursuing a paralegal associate degree can be a valuable option, offering specialized knowledge and competitive salaries.

In the pharmaceutical sector, chemistry graduates often explore roles such as pharmaceutical sales representatives. Understanding how much do drug reps make can help in evaluating this career's financial prospects and growth potential.

For those aiming to advance into healthcare, following the steps to become a pharmacist provides a clear path grounded in strong chemistry fundamentals combined with clinical training.

Additionally, careers in forensic science, such as becoming an autopsy technician, are appealing options for chemistry graduates interested in biological applications. Exploring the autopsy tech salary and job outlook can help guide these career decisions.

Best Scientists Citing Kazuhide Koike

Trending Scientists

Recently Published Articles