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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 54 12473 11224 937 857 145 13293

Ryuhei Nakamura publications per year

The chart shows the history of publications by Ryuhei Nakamura between 2000 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ryuhei Nakamura published across 27 years, from 2000 to 2026, averaging 7.9 papers a year. Output peaked at 23 publications in 2024. 22 of the 212 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 2000 to 2026. Vertical axis: number of publications, 0 to 23. Peak 23 publications in 2024. 2000: 1 publication 2001: 1 publication 2002: 3 publications 2003: 1 publication 2004: 4 publications 2005: 8 publications 2006: 2 publications 2007: 3 publications 2008: 6 publications 2009: 7 publications 2010: 8 publications 2011: 4 publications 2012: 10 publications 2013: 9 publications 2014: 9 publications 2015: 8 publications 2016: 7 publications 2017: 9 publications 2018: 13 publications 2019: 8 publications 2020: 11 publications 2021: 8 publications 2022: 10 publications 2023: 17 publications 2024: 23 publications 2025: 19 publications 2026: 3 publications
2000 2026

212 publications in total across all disciplines

View publications per year as a table
Ryuhei Nakamura: publications per year, 2000 to 2026
Year Publications
2000 1
2001 1
2002 3
2003 1
2004 4
2005 8
2006 2
2007 3
2008 6
2009 7
2010 8
2011 4
2012 10
2013 9
2014 9
2015 8
2016 7
2017 9
2018 13
2019 8
2020 11
2021 8
2022 10
2023 17
2024 23
2025 19
2026 3
Total 212
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Ryuhei Nakamura 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 Ryuhei Nakamura 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, 141–160 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: 145 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.

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 1,218 145
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
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Ryuhei Nakamura 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 Ryuhei Nakamura 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, 54–55 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: 54 D-Index — 31st percentile

31% 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 54
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
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Overview

Ryuhei Nakamura is affiliated with the Tokyo Institute of Technology in Japan and conducts research primarily in the field of energy, with a specialization in renewable energy, sustainability, and materials chemistry.

Their recent publications cover several aspects of energy conversion and electrochemical processes. Key papers include:

  • Enhancing the stability of cobalt spinel oxide towards sustainable oxygen evolution in acid, 2022, Nature Catalysis
  • Atomically dispersed hexavalent iridium oxide from MnO 2 reduction for oxygen evolution catalysis, 2024, Science
  • Acid-stable manganese oxides for proton exchange membrane water electrolysis, 2024, Nature Catalysis
  • CO 2 reduction driven by a pH gradient, 2020, Proceedings of the National Academy of Sciences
  • Enzyme Mimetic Active Intermediates for Nitrate Reduction in Neutral Aqueous Media, 2020, Angewandte Chemie International Edition

The scientist frequently collaborates with several coauthors, including:

  • Hideshi Ooka
  • Ailong Li
  • Shuang Kong
  • Daisuke Hashizume
  • Kiyohiro Adachi

Publication venues where Ryuhei Nakamura has contributed multiple works include:

  • ACS Sustainable Chemistry & Engineering
  • ECS Meeting Abstracts
  • The Cambridge Structural Database
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Nature Catalysis

Their research spans various subfields of study, such as:

  • Renewable Energy, Sustainability and the Environment
  • Materials Chemistry
  • Electrical and Electronic Engineering
  • Molecular Biology
  • Environmental Chemistry

Main topics addressed in their work cover:

  • Electrocatalysts for Energy Conversion
  • Fuel Cells and Related Materials
  • Chemistry and Chemical Engineering
  • CO2 Reduction Techniques and Catalysts
  • Advanced battery technologies research
  • Electrochemical Analysis and Applications
  • Hybrid Renewable Energy Systems

Best Publications

  • Nitrogen-doped carbon nanomaterials as non-metal electrocatalysts for water oxidation.

    Yong Zhao;Ryuhei Nakamura;Kazuhide Kamiya;Shuji Nakanishi

  • Mechanism for Visible Light Responses in Anodic Photocurrents at N-Doped TiO2 Film Electrodes

    Ryuhei Nakamura;Tomoaki Tanaka;Yoshihiro Nakato

  • Mechanisms of pH-dependent activity for water oxidation to molecular oxygen by MnO2 electrocatalysts.

    Toshihiro Takashima;Kazuhito Hashimoto;Ryuhei Nakamura

  • Visible-light sensitization of TiO2 photocatalysts by wet-method N doping

    Shinri Sato;Ryuhei Nakamura;Shinji Abe

  • Primary intermediates of oxygen photoevolution reaction on TiO2 (Rutile) particles, revealed by in situ FTIR absorption and photoluminescence measurements.

    Ryuhei Nakamura;Yoshihiro Nakato

  • Rate enhancement of bacterial extracellular electron transport involves bound flavin semiquinones

    Akihiro Okamoto;Kazuhito Hashimoto;Kenneth H. Nealson;Kenneth H. Nealson;Ryuhei Nakamura

  • Inhibition of Charge Disproportionation of MnO2 Electrocatalysts for Efficient Water Oxidation under Neutral Conditions

    Toshihiro Takashima;Kazuhito Hashimoto;Ryuhei Nakamura

  • In situ FTIR studies of primary intermediates of photocatalytic reactions on nanocrystalline TiO2 films in contact with aqueous solutions.

    Ryuhei Nakamura;Akihito Imanishi;Kei Murakoshi;Yoshihiro Nakato

  • Stable Potential Windows for Long-Term Electrocatalysis by Manganese Oxides Under Acidic Conditions.

    Ailong Li;Ailong Li;Hideshi Ooka;Nadège Bonnet;Toru Hayashi

  • Mechanism of Water Photooxidation Reaction at Atomically Flat TiO2 (Rutile) (110) and (100) Surfaces: Dependence on Solution pH

    Akihito Imanishi;Tomoaki Okamura;Naomichi Ohashi;Ryuhei Nakamura

  • Self-Constructed Electrically Conductive Bacterial Networks

    Ryuhei Nakamura;Fumiyoshi Kai;Akihiro Okamoto;Greg J. Newton

  • Uptake of self-secreted flavins as bound cofactors for extracellular electron transfer in Geobacter species

    Akihiro Okamoto;Koichiro Saito;Kengo Inoue;Kenneth H. Nealson

  • Molecular Mechanisms of Photoinduced Oxygen Evolution, PL Emission, and Surface Roughening at Atomically Smooth (110) and (100) n-TiO2 (Rutile) Surfaces in Aqueous Acidic Solutions

    Ryuhei Nakamura;Tomoaki Okamura;Naomichi Ohashi;and Akihito Imanishi

  • Thermoelectricity Generation and Electron–Magnon Scattering in a Natural Chalcopyrite Mineral from a Deep‐Sea Hydrothermal Vent

    Ran Ang;Ran Ang;Atta Ullah Khan;Naohito Tsujii;Ken Takai

  • Respiratory interactions of soil bacteria with (semi)conductive iron-oxide minerals.

    Souichiro Kato;Ryuhei Nakamura;Fumiyoshi Kai;Kazuya Watanabe

  • Design of all-inorganic molecular-based photocatalysts sensitive to visible light: Ti(IV)-O-Ce(III) bimetallic assemblies on mesoporous silica.

    Ryuhei Nakamura;Akihiro Okamoto;Hitoshi Osawa;Hiroshi Irie

  • Regulating proton-coupled electron transfer for efficient water splitting by manganese oxides at neutral pH.

    Akira Yamaguchi;Riko Inuzuka;Toshihiro Takashima;Toru Hayashi

  • Cell-secreted Flavins Bound to Membrane Cytochromes Dictate Electron Transfer Reactions to Surfaces with Diverse Charge and pH

    Akihiro Okamoto;Shafeer Kalathil;Xiao Deng;Kazuhito Hashimoto

  • Three-dimensional conductive nanowire networks for maximizing anode performance in microbial fuel cells.

    Yong Zhao;Kazuya Watanabe;Ryuhei Nakamura;Shigeki Mori

  • Mechanistic Investigation of Water Oxidation Catalyzed by Uniform, Assembled MnO Nanoparticles

    Kyoungsuk Jin;Hongmin Seo;Toru Hayashi;Mani Balamurugan

Frequent Co-Authors

Kazuhito Hashimoto
Kazuhito Hashimoto National Institute for Materials Science
Yoshihiro Nakato
Yoshihiro Nakato Osaka University
Masahiro Yamamoto
Masahiro Yamamoto University of Tokyo
Ken Takai
Ken Takai Japan Agency for Marine-Earth Science and Technology
Kenneth H. Nealson
Kenneth H. Nealson University of Southern California
Kazuya Watanabe
Kazuya Watanabe Tokyo University of Pharmacy and Life Sciences
Katsuhiko Suzuki
Katsuhiko Suzuki Japan Agency for Marine-Earth Science and Technology
David T. Allen
David T. Allen The University of Texas at Austin
Lin Zhuang
Lin Zhuang Wuhan University
Bing-Joe Hwang
Bing-Joe Hwang National Taiwan University of Science and Technology

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