World's Best Scientists 2026 revealed!
Nobuyoshi Nakagawa

Nobuyoshi Nakagawa

D-Index & Metrics

Engineering and Technology

D-Index
33
Citations
3527
World Ranking
9474
National Ranking
214

Nobuyoshi Nakagawa publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Nobuyoshi Nakagawa sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 174 publications — 37th percentile

37% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Nobuyoshi Nakagawa D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Nobuyoshi Nakagawa sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 33 D-Index — 5th percentile

5% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Nobuyoshi Nakagawa is affiliated with Gunma University in Japan and has contributed extensively to research in engineering, materials science, and energy. Their primary fields of study include Engineering with 17 publications, Materials Science with 11 publications, and Energy with 10 publications. Subfields of study cover Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment, Electronic, Optical and Magnetic Materials, Materials Chemistry, and Catalysis.

The scientist's main research topics are electrocatalysts for energy conversion, fuel cells and related materials, advanced battery technologies research, supercapacitor materials and fabrication, catalysis and oxidation reactions, and catalytic processes in materials science. These topics indicate a broad focus on energy-related materials and technologies, particularly within sustainable and advanced electrochemical systems.

Nakagawa's recent papers demonstrate active engagement with several aspects of energy and materials engineering. These include:

  • Significance of diffusion layers on the performance of liquid and vapor feed passive direct methanol fuel cells (2020, Energy)
  • Hollow Multishell-Structured TiO2/MAPbI3 Composite Improves Charge Utilization for Visible-Light Photocatalytic Hydrogen Evolution (2022, Inorganic Chemistry)
  • Activity Enhancement of a Carbon Electrode Material for Vanadium Redox Flow Battery by Electron-Beam Irradiation (2021, JOURNAL OF CHEMICAL ENGINEERING OF JAPAN)
  • Enhancement of the Electrode Activity of the Vanadium Redox Flow Battery by Higher Crystallinity of Carbon Matrix Using Seamless and Consecutive-porous Carbon Materials (2022, Journal of The Electrochemical Society)
  • Study of deep oxidation and sulfonation of graphene oxide as low-temperature fuel cell electrolyte (2020, International Journal of Hydrogen Energy)

Frequent coauthors collaborating with Nakagawa include Hirokazu Ishitobi, Honoka Doki, Soshi Shiraishi, Hidehiko Tsukada, and He Gao. Among these, Hirokazu Ishitobi stands out as a recurrent collaborator, having coauthored multiple publications.

The venues where Nakagawa has frequently published include International Journal of Hydrogen Energy, Advanced Engineering Forum, Carbon Resources Conversion, ECS Meeting Abstracts, and Energy. These publication venues reflect Nakagawa's focus on energy systems, materials engineering, and electrochemical research.

Best Publications

  • Performance of an internal direct-oxidation carbon fuel cell and its evaluation by graphic exergy analysis

    Nobuyoshi Nakagawa;Masaru Ishida

  • DMFC employing a porous plate for an efficient operation at high methanol concentrations

    Mohammad Ali Abdelkareem;Nobuyoshi Nakagawa

  • Performance of a direct methanol fuel cell operated at atmospheric pressure

    Nobuyoshi Nakagawa;Yikun Xiu

  • Characterization of gas fluidization regimes using pressure fluctuations

    D. Bai;E. Shibuya;N. Nakagawa;K. Kato

  • Catalytic activity of Ni–YSZ–CeO2 anode for the steam reforming of methane in a direct internal-reforming solid oxide fuel cell

    Nobuyoshi Nakagawa;Hitoei Sagara;Kunio Kato

  • Catalytic activity of baker's yeast in a mediatorless microbial fuel cell

    Enas Taha Sayed;Takuya Tsujiguchi;Nobuyoshi Nakagawa

  • Factors affecting methanol transport in a passive DMFC employing a porous carbon plate

    Mohammad Ali Abdelkareem;Nobuto Morohashi;Nobuyoshi Nakagawa

  • Ultrahigh methanol electro-oxidation activity of PtRu nanoparticles prepared on TiO2-embedded carbon nanofiber support

    Yudai Ito;Taizo Takeuchi;Takuya Tsujiguchi;Mohammad Ali Abdelkareem

  • Control of methanol transport and separation in a DMFC with a porous support

    Nobuyoshi Nakagawa;Mohammad Ali Abdelkareem;Kazuya Sekimoto

  • Flow structure in a fast fluidized bed

    D. Bai;E. Shibuya;Y. Masuda;N. Nakagawa

  • Product distribution and the reaction kinetics at the anode of direct ethanol fuel cell with Pt/C, PtRu/C and PtRuRh/C

    Nobuyoshi Nakagawa;Yuki Kaneda;Masatsugu Wagatsuma;Takuya Tsujiguchi

  • Distinction between upward and downward flows in circulating fluidized beds

    D. Bai;E. Shibuya;Y. Masuda;K. Nishio

  • Disorder−Order Transition in Mesoscopic Silica Thin Films

    Nan Yao;Anthony Y. Ku;Nobuyoshi Nakagawa;Tu Lee

  • Carbon–CeO2 composite nanofibers as a promising support for a PtRu anode catalyst in a direct methanol fuel cell

    Chen Feng;Taizo Takeuchi;Mohammad Ali Abdelkareem;Takuya Tsujiguchi

  • Effect of oxygen and methanol supply modes on the performance of a DMFC employing a porous plate

    Mohammad Ali Abdelkareem;Nobuyoshi Nakagawa

  • Development of a passive direct methanol fuel cell stack for high methanol concentration

    Takuya Tsujiguchi;Mohammad Ali Abdelkareem;Takuya Kudo;Nobuyoshi Nakagawa

  • Electrode performance of a thin-film YSZ cell set on a porous ceramic substrate by rf sputtering technique

    N. Nakagawa;H. Yoshioka;C. Kuroda;M. Ishida

  • Evaluation of the Effective Reaction Zone at Ni ( NiO ) / Zirconia Anode by Using an Electrode with a Novel Structure

    Nobuyoshi Nakagawa;Hiroyuki Sakurai;Kenichiro Kondo;Takehide Morimoto

  • Yeast Extract as an Effective and Safe Mediator for the Baker’s-Yeast-Based Microbial Fuel Cell

    Enas Taha Sayed;Nasser A. M. Barakat;Nasser A. M. Barakat;Mohammad Ali Abdelkareem;H. Fouad;H. Fouad

  • Significance of diffusion layers on the performance of liquid and vapor feed passive direct methanol fuel cells

    Mohammad Ali Abdelkareem;Mohammad Ali Abdelkareem;Enas Taha Sayed;Nobuyoshi Nakagawa

  • Exergy analysis of a pervaporation system and its combination with a distillation column based on an energy utilization diagram

    Masaru Ishida;Nobuyoshi Nakagawa

  • Continuous Drying of a Fine Particles-Water Slurry in a Powder-Particle Fluidized Bed

    Nobuyoshi Nakagawa;Kazumichi Ohsawa;Takayuki Takarada;Kunio Kato

Frequent Co-Authors

Mohammad Ali Abdelkareem
Mohammad Ali Abdelkareem University of Sharjah
Takayuki Takarada
Takayuki Takarada Gunma University
Nasser A.M. Barakat
Nasser A.M. Barakat Minia University
Enas Taha Sayed
Enas Taha Sayed Minia University
Ilhan A. Aksay
Ilhan A. Aksay Princeton University
Nan Yao
Nan Yao Princeton University
Itaru Honma
Itaru Honma Tohoku University
Ahmed A. Elzatahry
Ahmed A. Elzatahry University of Houston
Sol M. Gruner
Sol M. Gruner Cornell University
Kiyoshi Kanamura
Kiyoshi Kanamura Tokyo Metropolitan University

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