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Koichi Eguchi

Koichi Eguchi

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Chemistry
Japan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 93 1811 1612 95 91 440 28016

Koichi Eguchi publications per year

The chart shows the history of publications by Koichi Eguchi between 1980 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Koichi Eguchi published across 45 years, from 1980 to 2024, averaging 10.6 papers a year. Output peaked at 22 publications in 1988. 15 of the 477 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1980 to 2024. Vertical axis: number of publications, 0 to 22. Peak 22 publications in 1988. 1980: 1 publication 1981: 1 publication 1982: 1 publication 1983: 1 publication 1984: 0 publications 1985: 1 publication 1986: 9 publications 1987: 7 publications 1988: 22 publications 1989: 9 publications 1990: 15 publications 1991: 8 publications 1992: 10 publications 1993: 13 publications 1994: 4 publications 1995: 7 publications 1996: 16 publications 1997: 14 publications 1998: 16 publications 1999: 6 publications 2000: 7 publications 2001: 8 publications 2002: 11 publications 2003: 22 publications 2004: 7 publications 2005: 16 publications 2006: 17 publications 2007: 15 publications 2008: 16 publications 2009: 20 publications 2010: 19 publications 2011: 21 publications 2012: 17 publications 2013: 10 publications 2014: 7 publications 2015: 20 publications 2016: 19 publications 2017: 13 publications 2018: 5 publications 2019: 7 publications 2020: 12 publications 2021: 8 publications 2022: 4 publications 2023: 10 publications 2024: 5 publications
1980 2024

477 publications in total across all disciplines

View publications per year as a table
Koichi Eguchi: publications per year, 1980 to 2024
Year Publications
1980 1
1981 1
1982 1
1983 1
1984 0
1985 1
1986 9
1987 7
1988 22
1989 9
1990 15
1991 8
1992 10
1993 13
1994 4
1995 7
1996 16
1997 14
1998 16
1999 6
2000 7
2001 8
2002 11
2003 22
2004 7
2005 16
2006 17
2007 15
2008 16
2009 20
2010 19
2011 21
2012 17
2013 10
2014 7
2015 20
2016 19
2017 13
2018 5
2019 7
2020 12
2021 8
2022 4
2023 10
2024 5
Total 477
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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.

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, 421–440 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: 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.

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
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
421–440 327 440
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
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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.

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, 92–93 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: 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.

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
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 93
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
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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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