World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
42
Citations
6654
World Ranking
17508
National Ranking
1386

Tsutomu Ioroi 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 Tsutomu Ioroi 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: 144 publications — 12th percentile

12% of scientists in this discipline score the same or lower.

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

Tsutomu Ioroi 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 Tsutomu Ioroi 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: 42 D-Index — 3rd percentile

3% of scientists in this discipline score the same or lower.

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

Overview

Tsutomu Ioroi is affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. Their research primarily focuses on fields such as Engineering, Energy, and Materials Science, with significant contributions to subfields including Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment, Materials Chemistry, Mechanical Engineering, and Electrochemistry.

The main topics of Ioroi's work involve:

  • Electrocatalysts for Energy Conversion
  • Fuel Cells and Related Materials
  • Catalytic Processes in Materials Science
  • Advanced Battery Technologies Research
  • Advanced Memory and Neural Computing
  • Electrochemical Analysis and Applications
  • Hybrid Renewable Energy Systems

Tsutomu Ioroi has contributed to numerous peer-reviewed papers. Their recent publications include:

  • "A Strategy for Drastic Improvement in the Durability of Pt/C and PtCo/C Alloy Catalysts for the Oxygen Reduction Reaction by Melamine Surface Modification," 2022, ACS Catalysis
  • "Experimental study platform for electrocatalysis of atomic-level controlled high-entropy alloy surfaces," 2023, Nature Communications
  • "Creation of a Highly Active Pt/Pd/C Core-Shell-Structured Catalyst by Synergistic Combination of Intrinsically High Activity and Surface Decoration with Melamine or Tetra-(tert-butyl)-tetraazaporphyrin," 2020, ACS Catalysis
  • "Bifunctional electrocatalysts of lanthanum-based perovskite oxide with Sb-doped SnO2 for oxygen reduction and evolution reactions," 2020, Journal of Power Sources
  • "Highly reversal-tolerant anodes using Ti4O7-supported platinum with a very small amount of water-splitting catalyst," 2020, Journal of Power Sources

Among frequent coauthors collaborating with Tsutomu Ioroi are:

  • Masafumi Asahi
  • Shin-ichi Yamazaki
  • Noboru Taguchi
  • T. Nagai
  • Zyun Siroma

Tsutomu Ioroi has published extensively in venues such as:

  • ECS Meeting Abstracts
  • Electrochemistry
  • SSRN Electronic Journal
  • The Cambridge Structural Database
  • ACS Catalysis

Best Publications

  • Thin film electrocatalyst layer for unitized regenerative polymer electrolyte fuel cells

    Tsutomu Ioroi;Kazuaki Yasuda;Zyun Siroma;Naoko Fujiwara

  • Platinum dissolution and deposition in the polymer electrolyte membrane of a PEM fuel cell as studied by potential cycling

    Kazuaki Yasuda;Akira Taniguchi;Tomoki Akita;Tsutomu Ioroi

  • Sub-stoichiometric titanium oxide-supported platinum electrocatalyst for polymer electrolyte fuel cells

    Tsutomu Ioroi;Zyun Siroma;Naoko Fujiwara;Shin-ichi Yamazaki

  • Stability of Corrosion-Resistant Magnéli-Phase Ti4O7-Supported PEMFC Catalysts at High Potentials

    Tsutomu Ioroi;Hiroshi Senoh;Shin-ichi Yamazaki;Zyun Siroma

  • Iridium Oxide/Platinum Electrocatalysts for Unitized Regenerative Polymer Electrolyte Fuel Cells

    Tsutomu Ioroi;Naohisa Kitazawa;Kazuaki Yasuda;Yoshifumi Yamamoto

  • Electrocatalysts for PEM Fuel Cells

    Tsutomu Ioroi;Zyun Siroma;Shin‐ichi Yamazaki;Kazuaki Yasuda

  • A fuel cell with selective electrocatalysts using hydrogen peroxide as both an electron acceptor and a fuel

    Shin-ichi Yamazaki;Zyun Siroma;Hiroshi Senoh;Tsutomu Ioroi

  • Direct ethanol fuel cells using an anion exchange membrane

    Naoko Fujiwara;Zyun Siroma;Shin-ichi Yamazaki;Tsutomu Ioroi

  • Platinum-Iridium Alloys as Oxygen Reduction Electrocatalysts for Polymer Electrolyte Fuel Cells

    Tsutomu Ioroi;Kazuaki Yasuda

  • Depression of proton conductivity in recast Nafion® film measured on flat substrate

    Zyun Siroma;Ryou Kakitsubo;Naoko Fujiwara;Tsutomu Ioroi

  • Investigation of PEM type direct hydrazine fuel cell

    Koji Yamada;Koichiro Asazawa;Kazuaki Yasuda;Tsutomu Ioroi

  • Influence of PTFE coating on gas diffusion backing for unitized regenerative polymer electrolyte fuel cells

    Tsutomu Ioroi;Takanori Oku;Kazuaki Yasuda;Naokazu Kumagai

  • AC impedance analysis of ionic and electronic conductivities in electrode mixture layers for an all-solid-state lithium-ion battery

    Zyun Siroma;Tomohiro Sato;Tomonari Takeuchi;Ryo Nagai

  • Nonenzymatic glucose fuel cells with an anion exchange membrane as an electrolyte

    Naoko Fujiwara;Shin-ichi Yamazaki;Zyun Siroma;Tsutomu Ioroi

  • Dissolution of Nafion® membrane and recast Nafion® film in mixtures of methanol and water

    Z. Siroma;N. Fujiwara;T. Ioroi;S. Yamazaki

  • Platinum and molybdenum oxide deposited carbon electrocatalyst for oxidation of hydrogen containing carbon monoxide

    Tsutomu Ioroi;Naoko Fujiwara;Zyun Siroma;Kazuaki Yasuda

  • IrO2-deposited Pt electrocatalysts for unitized regenerative polymer electrolyte fuel cells

    T. Ioroi;N. Kitazawa;K. Yasuda;Y. Yamamoto

  • Characteristics of a Platinum Black Catalyst Layer with Regard to Platinum Dissolution Phenomena in a Membrane Electrode Assembly

    Kazuaki Yasuda;Akira Taniguchi;Tomoki Akita;Tsutomu Ioroi

  • Estimation of specific interaction between several Co porphyrins and carbon black: its influence on the electrocatalytic O2 reduction by the porphyrins

    Shin-ichi Yamazaki;Yusuke Yamada;Tsutomu Ioroi;Naoko Fujiwara

  • Preparation of platinum–ruthenium onto solid polymer electrolyte membrane and the application to a DMFC anode

    Naoko Fujiwara;Kazuaki Yasuda;Tsutomu Ioroi;Zyun Siroma

  • Comparative study of carbon-supported Pt/Mo-oxide and PtRu for use as CO-tolerant anode catalysts

    Tsutomu Ioroi;Tomoki Akita;Shin-ichi Yamazaki;Zyun Siroma

Frequent Co-Authors

Zyun Siroma
Zyun Siroma National Institute of Advanced Industrial Science and Technology
Kazuaki Yasuda
Kazuaki Yasuda National Institute of Advanced Industrial Science and Technology
Yoshiharu Uchimoto
Yoshiharu Uchimoto Kyoto University
Zempachi Ogumi
Zempachi Ogumi Kyoto University
Tomoki Akita
Tomoki Akita National Institute of Advanced Industrial Science and Technology
Tetsuhiko Kobayashi
Tetsuhiko Kobayashi National Institute of Advanced Industrial Science and Technology
Hajime Arai
Hajime Arai Tokyo Institute of Technology
Hiroki Habazaki
Hiroki Habazaki Hokkaido University
Shinobu Itoh
Shinobu Itoh Osaka University
Minoru Inaba
Minoru Inaba Doshisha University

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