World's Best Scientists 2026 revealed!
Kazu Okumura

Kazu Okumura

D-Index & Metrics

Chemistry

D-Index
51
Citations
7096
World Ranking
14186
National Ranking
1100

Kazu Okumura 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 Kazu Okumura 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: 164 publications — 19th percentile

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

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

Kazu Okumura 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 Kazu Okumura 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: 51 D-Index — 23rd percentile

23% of scientists in this discipline score the same or lower.

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

Overview

Kazu Okumura is affiliated with Kogakuin University in Japan and specializes in research within materials science, chemistry, and engineering. The primary focus of their work spans materials chemistry, inorganic chemistry, and organic chemistry, with notable contributions in biomedical and mechanical engineering fields.

The scientist's research topics include:

  • Catalytic Processes in Materials Science
  • Zeolite Catalysis and Synthesis
  • Catalysis and Hydrodesulfurization Studies
  • Asymmetric Hydrogenation and Catalysis
  • Catalysis for Biomass Conversion
  • Catalysis and Oxidation Reactions
  • X-ray Diffraction in Crystallography

Frequent publication venues for Kazu Okumura include:

  • ACS Omega
  • Microporous and Mesoporous Materials
  • Molecular Catalysis
  • Journal of Catalysis
  • Applied Catalysis A General

Their recent published papers are:

  • "Comparative study of direct methylation of benzene with methane on cobalt-exchanged ZSM-5 and ZSM-11 zeolites," 2020, Applied Catalysis A General
  • "Tungsten-zirconia-supported rhenium catalyst combined with a deoxydehydration catalyst for the one-pot synthesis of 1,4-butanediol from 1,4-anhydroerythritol," 2020, Reaction Chemistry & Engineering
  • "Position and Lewis acidic property of active cobalt species on MFI zeolite for catalytic methylation of benzene with methane," 2020, Microporous and Mesoporous Materials
  • "Formation of a Pt-MgO Solid Solution: Analysis by X-ray Absorption Fine Structure Spectroscopy," 2022, ACS Omega
  • "Mg-stabilized subnanometer Rh particles in zeolite Beta as highly efficient catalysts for selective hydrogenation," 2021, Journal of Catalysis

Kazu Okumura has collaborated frequently with the following coauthors:

  • Hikaru Iiyoshi (7 publications)
  • Naonobu Katada (5 publications)
  • Anas Abdullahi (5 publications)
  • Koshiro Nakamura (3 publications)
  • Etsushi Tsuji (3 publications)

Best Publications

  • Promoting effect of Mo on the hydrogenolysis of tetrahydrofurfuryl alcohol to 1,5-pentanediol over Rh/SiO2

    Shuichi Koso;Naoyuki Ueda;Yasunori Shinmi;Kazu Okumura

  • Toluene combustion over palladium supported on various metal oxide supports

    Kazu Okumura;Takeshi Kobayashi;Hideaki Tanaka;Miki Niwa

  • Development of Ni catalysts for tar removal by steam gasification of biomass

    Takeo Kimura;Tomohisa Miyazawa;Jin Nishikawa;Shigeru Kado

  • In Situ Time‐Resolved Dynamic Surface Events on the Pt/C Cathode in a Fuel Cell under Operando Conditions

    Mizuki Tada;Shigeaki Murata;Takahiko Asakoka;Kazutaka Hiroshima

  • Comparative study of Rh–MoOx and Rh–ReOx supported on SiO2 for the hydrogenolysis of ethers and polyols

    Shuichi Koso;Hideo Watanabe;Kazu Okumura;Yoshinao Nakagawa

  • Surface modification of Ni catalysts with trace Pt for oxidative steam reforming of methane

    Baitao Li;Shigeru Kado;Yuya Mukainakano;Tomohisa Miyazawa

  • Hydrodeoxygenation of Vicinal OH Groups over Heterogeneous Rhenium Catalyst Promoted by Palladium and Ceria Support

    Nobuhiko Ota;Masazumi Tamura;Yoshinao Nakagawa;Kazu Okumura

  • X-ray Absorption Fine Structure Study of the Formation of the Highly Dispersed PdO over ZSM-5 and the Structural Change of Pd Induced by Adsorption of NO

    Kazu Okumura;Jiro Amano;and Naoko Yasunobu;Miki Niwa

  • Performance, Structure, and Mechanism of ReOx–Pd/CeO2 Catalyst for Simultaneous Removal of Vicinal OH Groups with H2

    Nobuhiko Ota;Masazumi Tamura;Yoshinao Nakagawa;Kazu Okumura

  • Support effect of zeolite on the methane combustion activity of palladium

    Kazu Okumura;Sachi Matsumoto;Noriko Nishiaki;Miki Niwa

  • Structure of ReOx Clusters Attached on the Ir Metal Surface in Ir–ReOx/SiO2 for the Hydrogenolysis Reaction

    Yasushi Amada;Hideo Watanabe;Masazumi Tamura;Yoshinao Nakagawa

  • Deoxydehydration with Molecular Hydrogen over Ceria-Supported Rhenium Catalyst with Gold Promoter

    Shuhei Tazawa;Nobuhiko Ota;Masazumi Tamura;Yoshinao Nakagawa

  • Characterization of Re–Pd/SiO2 Catalysts for Hydrogenation of Stearic Acid

    Yasuyuki Takeda;Masazumi Tamura;Yoshinao Nakagawa;Kazu Okumura

  • Catalytic performance and elution of Pd in the Heck reaction over zeolite-supported Pd cluster catalyst

    Kazu Okumura;Kumiko Nota;Keiko Yoshida;Miki Niwa

  • Surface modification of Ni catalysts with trace Pd and Rh for oxidative steam reforming of methane

    Yuya Mukainakano;Baitao Li;Shigeru Kado;Tomohisa Miyazawa

  • Hydrogenation of dicarboxylic acids to diols over Re–Pd catalysts

    Yasuyuki Takeda;Masazumi Tamura;Yoshinao Nakagawa;Kazu Okumura

  • Post-synthesized zirconium-containing Beta zeolite in Meerwein–Ponndorf–Verley reduction: Pros and cons

    Jie Wang;Kazu Okumura;Stephan Jaenicke;Gaik-Khuan Chuah

  • Selective Hydrogenolysis of Glycerol to 1,3-Propanediol over Rhenium-Oxide-Modified Iridium Nanoparticles Coating Rutile Titania Support

    Lujie Liu;Takehiro Asano;Yoshinao Nakagawa;Masazumi Tamura

  • Effect of reductants in N2O reduction over Fe-MFI catalysts

    Takeshi Nobukawa;Masanori Yoshida;Kazu Okumura;Keiichi Tomishige

  • Mechanistic Study of Hydrogen-Driven Deoxydehydration over Ceria-Supported Rhenium Catalyst Promoted by Au Nanoparticles

    Yoshinao Nakagawa;Shuhei Tazawa;Tianmiao Wang;Masazumi Tamura

  • Speciation of iodine in solid environmental samples by iodine K-edge XANES: application to soils and ferromanganese oxides.

    Sayuri Kodama;Yoshio Takahashi;Kazu Okumura;Tomoya Uruga

Frequent Co-Authors

Miki Niwa
Miki Niwa Aichi Institute of Technology
Keiichi Tomishige
Keiichi Tomishige Tohoku University
Naonobu Katada
Naonobu Katada Tottori University
Yoshinao Nakagawa
Yoshinao Nakagawa Tohoku University
Kimio Kunimori
Kimio Kunimori University of Tsukuba
Masazumi Tamura
Masazumi Tamura Osaka Metropolitan University
Yasuhiro Iwasawa
Yasuhiro Iwasawa University of Electro-Communications
Kiyotaka Asakura
Kiyotaka Asakura Hokkaido University
Atsushi Satsuma
Atsushi Satsuma Kyoto University
Gaik-Khuan Chuah
Gaik-Khuan Chuah National University of Singapore

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