World's Best Scientists 2026 revealed!
Koichi Eguchi

Koichi Eguchi

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Chemistry
Japan
2026

D-Index & Metrics

Chemistry

D-Index
93
Citations
28016
World Ranking
1811
National Ranking
95

Koichi Eguchi 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 Koichi Eguchi 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: 440 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

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

Koichi Eguchi 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 Koichi Eguchi 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: 93 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Chemistry in Japan Leader Award
  • 2025 - Research.com Chemistry in Japan Leader Award
  • 2022 - Research.com Chemistry in Japan Leader Award

Overview

Koichi Eguchi is affiliated with Kyoto University in Japan and has contributed extensively to materials science, particularly in the study of fuel cells and catalysis. Their research spans several interconnected disciplines with a strong focus on advancing sustainable energy technologies.

Eguchi's main fields of study include materials science, with specific expertise in materials chemistry, renewable energy and sustainability, electrical and electronic engineering, catalysis, and molecular biology. Their work concentrates on subfields such as materials chemistry, renewable energy and sustainability, electrical and electronic engineering, catalysis, and molecular biology, reflecting a multidisciplinary approach.

Key topics that characterize Eguchi's research output are:

  • Advancements in Solid Oxide Fuel Cells
  • Electrocatalysts for Energy Conversion
  • Fuel Cells and Related Materials
  • Catalytic Processes in Materials Science
  • Ammonia Synthesis and Nitrogen Reduction
  • Hydrogen Storage and Materials
  • Polyoxometalates: Synthesis and Applications

Eguchi has a record of frequent collaboration with other researchers, including:

  • Toshiaki Matsui
  • Hiroki Muroyama
  • Shinji Naruse
  • Younghwan Im
  • Takashi Ozeki

Their publications have appeared in several prominent venues with recurring contributions to:

  • ECS Meeting Abstracts
  • International Journal of Hydrogen Energy
  • Journal of The Electrochemical Society
  • Journal of Materials Chemistry A
  • SSRN Electronic Journal

Recent papers authored or co-authored by Eguchi include:

  • Development of 1 kW-class Ammonia-fueled Solid Oxide Fuel Cell Stack, 2020, Fuel Cells
  • Ammonia decomposition over nickel catalysts supported on alkaline earth metal aluminate for H2 production, 2020, International Journal of Hydrogen Energy
  • Impact of the ammonia decomposition reaction over an anode on direct ammonia-fueled protonic ceramic fuel cells, 2020, Sustainable Energy & Fuels
  • Efficient and durable ammonia power generation by symmetric flat-tube solid oxide fuel cells, 2020, Applied Energy
  • Low-Temperature Ammonia Decomposition Catalysts for Direct Ammonia Solid Oxide Fuel Cells, 2020, Journal of The Electrochemical Society

Best Publications

  • Electrical properties of ceria-based oxides and their application to solid oxide fuel cells

    K Eguchi;T Setoguchi;T Inoue;H Arai

  • Limiting mechanisms in catalytic steam reforming of dimethyl ether

    Kajornsak Faungnawakij;Naohiro Shimoda;Nawin Viriya-empikul;Ryuji Kikuchi

  • High‐temperature thermoelectric properties of (Zn1−xAlx)O

    Michitaka Ohtaki;Toshiki Tsubota;Koichi Eguchi;Hiromichi Arai

  • Catalytic combustion of methane over various perovskite-type oxides

    H. Arai;T. Yamada;K. Eguchi;T. Seiyama

  • Electrical properties and reducibilities of ceria−rare earth oxide systems and their application to solid oxide fuel cell

    Hidenori Yahiro;Koichi Eguchi;Hiromichi Arai

  • Thermoelectric properties of Al-doped ZnO as a promising oxide material for high-temperature thermoelectric conversion

    Toshiki Tsubota;Michitaka Ohtaki;Koichi Eguchi;Hiromichi Arai

  • Quantification of SOFC anode microstructure based on dual beam FIB-SEM technique

    Hiroshi Iwai;Naoki Shikazono;Toshiaki Matsui;Hisanori Teshima

  • Oxygen ion conductivity of the ceria-samarium oxide system with fluorite structure

    Hidenori Yahiro;Yukari Eguchi;Koichi Eguchi;Hiromichi Arai

  • Electrical transport properties and high-temperature thermoelectric performance of (Ca0.9M0.1)MnO3 (M = Y, La, Ce, Sm, In, Sn, Sb, Pb, Bi)

    Michitaka Ohtaki;Hisako Koga;Tsutomu Tokunaga;Koichi Eguchi

  • Effect of additives on the surface area of oxide supports for catalytic combustion

    Masato Machida;Koichi Eguchi;Hiromichi Arai

  • Catalytic autothermal reforming of methane and propane over supported metal catalysts

    S. Ayabe;H. Omoto;T. Utaka;R. Kikuchi

  • Carbon dioxide methanation over Ni catalysts supported on various metal oxides

    Hiroki Muroyama;Yuji Tsuda;Toshiki Asakoshi;Hasan Masitah

  • Study on steam reforming of CH4 and C2 hydrocarbons and carbon deposition on Ni-YSZ cermets

    Tatsuya Takeguchi;Yukimune Kani;Tatsuya Yano;Ryuji Kikuchi

  • Impedance Analysis of Internal Resistance Affecting the Photoelectrochemical Performance of Dye-Sensitized Solar Cells

    T. Hoshikawa;M. Yamada;R. Kikuchi;K. Eguchi

  • Fuel flexibility in power generation by solid oxide fuel cells

    K Eguchi;H Kojo;T Takeguchi;R Kikuchi

  • Catalytic properties of BaMAl11O19-α (M = Cr, Mn, Fe, Co, and Ni) for high-temperature catalytic combustion

    Masato Machida;Koichi Eguchi;Hiromichi Arai

  • Protonic conduction of CsH2PO4 and its composite with silica in dry and humid atmospheres

    Junichiro Otomo;Naohisa Minagawa;Ching-ju Wen;Koichi Eguchi

  • Effects of Anode Material and Fuel on Anodic Reaction of Solid Oxide Fuel Cells

    Toshihiko Setoguchi;Kotaro Okamoto;Koichi Eguchi;Hiromichi Arai

  • Water gas shift reaction for the reformed fuels over Cu/MnO catalysts prepared via spinel-type oxide

    Yohei Tanaka;Toshimasa Utaka;Ryuji Kikuchi;Tatsuya Takeguchi

  • Performance Deterioration of Ni-YSZ Anode Induced by Electrochemically Generated Steam in Solid Oxide Fuel Cells

    Toshiaki Matsui;Ryo Kishida;Jin-Young Kim;Hiroki Muroyama

Frequent Co-Authors

Toshiaki Matsui
Toshiaki Matsui Kyoto University
Ryuji Kikuchi
Ryuji Kikuchi University of Tokyo
Hiromichi Arai
Hiromichi Arai Kyushu University
Masato Machida
Masato Machida Kumamoto University
Kajornsak Faungnawakij
Kajornsak Faungnawakij National Science and Technology Development Agency
Kazunari Sasaki
Kazunari Sasaki Kyushu University
Tatsumi Ishihara
Tatsumi Ishihara Kyushu University
Noboru Yamazoe
Noboru Yamazoe Kyushu University
Harumi Yokokawa
Harumi Yokokawa University of Tokyo
Katsuhiko Yamaji
Katsuhiko Yamaji National Institute of Advanced Industrial Science and Technology

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