World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 69 4593 4443 213 209 396 18931
Chemistry 69 6130 5561 385 361 387 18777

Naoki Toshima publications per year

The chart shows the history of publications by Naoki Toshima between 1963 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Naoki Toshima published across 63 years, from 1963 to 2025, averaging 6.7 papers a year. Output peaked at 20 publications in 2002. 3 of the 421 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1963 to 2025. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2002. 1963: 1 publication 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 5 publications 1968: 0 publications 1969: 2 publications 1970: 2 publications 1971: 3 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 2 publications 1976: 2 publications 1977: 2 publications 1978: 4 publications 1979: 3 publications 1980: 0 publications 1981: 3 publications 1982: 0 publications 1983: 1 publication 1984: 2 publications 1985: 6 publications 1986: 4 publications 1987: 2 publications 1988: 5 publications 1989: 13 publications 1990: 14 publications 1991: 7 publications 1992: 9 publications 1993: 10 publications 1994: 18 publications 1995: 11 publications 1996: 14 publications 1997: 6 publications 1998: 6 publications 1999: 8 publications 2000: 14 publications 2001: 12 publications 2002: 20 publications 2003: 10 publications 2004: 16 publications 2005: 12 publications 2006: 14 publications 2007: 18 publications 2008: 10 publications 2009: 13 publications 2010: 7 publications 2011: 12 publications 2012: 14 publications 2013: 15 publications 2014: 12 publications 2015: 8 publications 2016: 9 publications 2017: 9 publications 2018: 4 publications 2019: 5 publications 2020: 7 publications 2021: 5 publications 2022: 4 publications 2023: 3 publications 2024: 2 publications 2025: 1 publication
1963 2025

421 publications in total across all disciplines

View publications per year as a table
Naoki Toshima: publications per year, 1963 to 2025
Year Publications
1963 1
1964 0
1965 0
1966 0
1967 5
1968 0
1969 2
1970 2
1971 3
1972 0
1973 0
1974 0
1975 2
1976 2
1977 2
1978 4
1979 3
1980 0
1981 3
1982 0
1983 1
1984 2
1985 6
1986 4
1987 2
1988 5
1989 13
1990 14
1991 7
1992 9
1993 10
1994 18
1995 11
1996 14
1997 6
1998 6
1999 8
2000 14
2001 12
2002 20
2003 10
2004 16
2005 12
2006 14
2007 18
2008 10
2009 13
2010 7
2011 12
2012 14
2013 15
2014 12
2015 8
2016 9
2017 9
2018 4
2019 5
2020 7
2021 5
2022 4
2023 3
2024 2
2025 1
Total 421
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Naoki Toshima publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Naoki Toshima sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 57 bars. Horizontal axis: publications, 50–69 to 1,163+. Vertical axis: number of scientists, 0 to 891. Most scientists, 891, have 190–209 publications. The last bar groups every scientist with 1,163 publications or more. The highlighted bar, 390–409 publications, is where this scientist sits. 50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50–69 publications 1,163+

This scientist: 396 publications — 77th percentile

77% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

View publications distribution as a table
Number of Materials Science scientists by publication count, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
Publications Scientists This scientist
50–69 28
70–89 152
90–109 356
110–129 487
130–149 723
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537
330–349 477
350–369 440
370–389 356
390–409 321 396
410–429 256
430–449 246
450–469 216
470–489 212
490–509 174
510–529 194
530–549 162
550–569 131
570–589 111
590–609 103
610–629 99
630–649 77
650–669 92
670–689 56
690–709 53
710–729 53
730–749 38
750–769 52
770–789 43
790–809 38
810–829 34
830–849 25
850–869 18
870–889 20
890–909 24
910–929 27
930–949 20
950–969 17
970–989 10
990–1,009 16
1,010–1,029 13
1,030–1,049 12
1,050–1,069 9
1,070–1,089 8
1,090–1,109 7
1,110–1,129 9
1,130–1,149 2
1,150–1,162 5
1,163+ 100
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Naoki Toshima D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where Naoki Toshima sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 64 bars. Horizontal axis: D-Index, 40–41 to 165+. Vertical axis: number of scientists, 0 to 667. Most scientists, 667, have 52–53 D-Index. The last bar groups every scientist with 165 D-Index or more. The highlighted bar, 68–69 D-Index, is where this scientist sits. 40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40–41 D-Index 165+

This scientist: 69 D-Index — 65th percentile

65% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

View D-Index distribution as a table
Number of Materials Science scientists by D-index, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
D-Index Scientists This scientist
40–41 211
42–43 450
44–45 612
46–47 612
48–49 598
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490
68–69 469 69
70–71 378
72–73 421
74–75 359
76–77 323
78–79 299
80–81 230
82–83 210
84–85 195
86–87 203
88–89 175
90–91 175
92–93 142
94–95 121
96–97 117
98–99 107
100–101 88
102–103 85
104–105 68
106–107 62
108–109 57
110–111 45
112–113 49
114–115 50
116–117 34
118–119 38
120–121 37
122–123 29
124–125 28
126–127 24
128–129 33
130–131 28
132–133 21
134–135 20
136–137 23
138–139 17
140–141 12
142–143 17
144–145 21
146–147 13
148–149 11
150–151 14
152–153 13
154–155 9
156–157 10
158–159 7
160–161 4
162–163 4
164 3
165+ 98
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Overview

Naoki Toshima is affiliated with Tokyo University of Science in Japan. Their research primarily spans the fields of Materials Science and Engineering, with a significant focus on Materials Chemistry, Polymers and Plastics, Electrical and Electronic Engineering, Organic Chemistry, and Inorganic Chemistry.

The scientist's work concentrates on advanced topics within the materials science domain, including:

  • Advanced Thermoelectric Materials and Devices
  • Conducting polymers and applications
  • Carbon Nanotubes in Composites
  • Organic Electronics and Photovoltaics
  • Thermal properties of materials
  • Nanomaterials for catalytic reactions
  • Thermal Radiation and Cooling Technologies

Naoki Toshima has contributed to a number of research articles published in various scientific journals. Among recent papers are:

  • "Surfactant-Wrapped n-Type Organic Thermoelectric Carbon Nanotubes for Long-Term Air Stability and Power Characteristics," 2022, ACS Applied Electronic Materials
  • "Green Route for Fabrication of Water-Treatable Thermoelectric Generators," 2022, Energy Material Advances
  • "Colloidal Co single-atom catalyst: a facile synthesis strategy and high catalytic activity for hydrogen generation," 2020, Green Chemistry
  • "Water-resistant organic thermoelectric generator with >10 μW output," 2022, Carbon Energy
  • "Enhancement of p-type thermoelectric power factor by low-temperature calcination in carbon nanotube thermoelectric films containing cyclodextrin polymer and Pd," 2021, Applied Physics Letters

The scientist frequently publishes in venues such as:

  • Materials Advances
  • RSC Applied Interfaces
  • ACS Applied Electronic Materials
  • Energy Material Advances
  • Carbon Energy

Naoki Toshima often collaborates with other researchers, with the most frequent co-authors being:

  • Yukihide Shiraishi
  • Shinichi Hata
  • Yukou Du
  • Soichiro Yasuda
  • Toru Murayama

The researcher's publication record indicates considerable involvement in interdisciplinary studies that bridge chemistry, physics, and engineering to explore properties and practical applications of thermoelectric and nanomaterial systems. Their work on organic thermoelectric devices and catalysts contributes to advances in sustainable energy materials and nanotechnology.

Best Publications

  • Bimetallic nanoparticles—novel materials for chemical and physical applications

    Naoki Toshima;Tetsu Yonezawa

  • Catalytically highly active top gold atom on palladium nanocluster

    Haijun Zhang;Tatsuya Watanabe;Mitsutaka Okumura;Masatake Haruta

  • Preparation of Colloidal Transition Metals in Polymers by Reduction with Alcohols or Ethers

    Hidefumi Hirai;Yukimichi Nakao;Naoki Toshima

  • Structural analysis of polymer-protected palladium/platinum bimetallic clusters as dispersed catalysts by using extended x-ray absorption fine structure spectroscopy

    Naoki Toshima;Masafumi Harada;Tetsu Yonezawa;Kakuta Kushihashi

  • Platinum nanoparticle is a useful scavenger of superoxide anion and hydrogen peroxide

    Masashi Kajita;Keisuke Hikosaka;Mayumi Iitsuka;Atsuhiro Kanayama

  • Polymer-protected palladium–platinum bimetallic clusters: preparation, catalytic properties and structural considerations

    Naoki Toshima;Tetsu Yonezawa;Kakuta Kushihashi

  • Preparation of Pd−Pt Bimetallic Colloids with Controllable Core/Shell Structures

    Yuan Wang† and;Naoki Toshima

  • Polymer-Protected Ni/Pd Bimetallic Nano-Clusters: Preparation, Characterization and Catalysis for Hydrogenation of Nitrobenzene

    Ping Lu;Toshiharu Teranishi;Kiyotaka Asakura;Mikio Miyake

  • Preparation and Catalysis of Novel Colloidal Dispersions of Copper/Noble Metal Bimetallic Clusters

    Naoki Toshima;Yuan Wang

  • Frequency modulation response of a liquid-crystal electro-optic device doped with nanoparticles

    Yukihide Shiraishi;Naoki Toshima;Kenji Maeda;Hiroaki Yoshikawa

  • Catalytic activity and structural analysis of polymer-protected gold/palladium bimetallic clusters prepared by the successive reduction of hydrogen tetrachloroaurate(III) and palladium dichloride

    Masafumi Harada;Kiyotaka Asakura;Naoki Toshima

  • Metal nanoclusters in catalysis and materials science : The issue of size control {1st ed.}

    Benedetto. Corain;Günter Schmid;Naoki. Toshima

  • Facile fabrication of Ag-Pd bimetallic nanoparticles in ultrathin TiO(2)-gel films: nanoparticle morphology and catalytic activity.

    Junhui He;Izumi Ichinose;Toyoki Kunitake;Aiko Nakao

  • Direct synthesis of conducting polymers from simple monomers

    Naoki Toshima;Susumu Hara

  • Colloidal silver catalysts for oxidation of ethylene

    Yukihide Shiraishi;Naoki Toshima

  • Oxidation of ethylene catalyzed by colloidal dispersions of poly(sodium acrylate)-protected silver nanoclusters

    Yukihide Shiraishi;Naoki Toshima

  • Thermoelectric figure-of-merit of iodine-doped copolymer of phenylenevinylene with dialkoxyphenylenevinylene

    Yuji Hiroshige;Makoto Ookawa;Naoki Toshima

  • Thermal transporting properties of electrically conductive polyaniline films as organic thermoelectric materials

    Hu Yan;Norina Sada;Naoki Toshima

  • Various ligand-stabilized metal nanoclusters as homogeneous and heterogeneous catalysts in the liquid phase

    Naoki Toshima;Yukihide Shiraishi;Toshiharu Teranishi;Mikio Miyake

  • Recent progress of organic and hybrid thermoelectric materials

    Naoki Toshima

  • Mechanistic consideration of formation of polymer-protected nanoscopic bimetallic clusters

    Tetsu Yonezawa;Naoki Toshima

Frequent Co-Authors

Yukihide Shiraishi
Yukihide Shiraishi Sanyo-Onoda City University
Shunsuke Kobayashi
Shunsuke Kobayashi Sanyo-Onoda City University
Tetsu Yonezawa
Tetsu Yonezawa Hokkaido University
Toshiharu Teranishi
Toshiharu Teranishi Kyoto University
Hiroyuki Asanuma
Hiroyuki Asanuma Nagoya University
Kiyotaka Asakura
Kiyotaka Asakura Hokkaido University
Mitsutaka Okumura
Mitsutaka Okumura Osaka University
Makoto Komiyama
Makoto Komiyama University of Tokyo
Yukou Du
Yukou Du Soochow University
Masatake Haruta
Masatake Haruta Tokyo Metropolitan University

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