World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
63
Citations
20920
World Ranking
8270
National Ranking
70

Niels J. Bjerrum 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 Niels J. Bjerrum 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: 420 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

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

Niels J. Bjerrum 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 Niels J. Bjerrum 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: 63 D-Index — 54th percentile

54% 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

  • 1952 - Member of the National Academy of Sciences

Overview

Niels J. Bjerrum is affiliated with the Technical University of Denmark in Denmark. The primary area of research falls within engineering, with a notable focus on electrical and electronic engineering, materials chemistry, fluid flow and transfer processes, mechanical engineering, and renewable energy, sustainability, and the environment.

Their work covers several key topics, including:

  • Advanced Battery Materials and Technologies
  • Solid-state spectroscopy and crystallography
  • Molten salt chemistry and electrochemical processes
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Fuel Cells and Related Materials
  • Advanced materials and composites

The major publication venues where Bjerrum has contributed include:

  • Journal of The Electrochemical Society
  • Ionics
  • SSRN Electronic Journal
  • International Journal of Hydrogen Energy
  • Journal of Power Sources

Some recent papers authored or co-authored by Bjerrum are:

  • "Efficient water splitting electrolysis on a platinum-free tungsten carbide electrocatalyst in molten CsH2PO4 at 350-390 °C" (2020), published in International Journal of Hydrogen Energy
  • "CsH2PO4 as Electrolyte for the Formation of CH4 by Electrochemical Reduction of CO2" (2020), published in Journal of The Electrochemical Society
  • "Pressurized solid phosphate electrolyzer for medium temperature water splitting" (2022), published in Ionics
  • "Vapor pressure and specific electrical conductivity in the H2O-LiH2PO4-LiPO3 system-a novel electrolyte for water electrolysis at elevated temperature" (2021), published in Ionics
  • "Methanol Synthesis from CO2 and H2O Using a Solid Phosphate Electrolyzer at 240 °C and 28 Bar" (2023), published in Journal of The Electrochemical Society

Frequent collaborators include:

  • Erik R. Christensen
  • Rolf W. Berg
  • Klaus Köhler
  • Franz Bannert
  • Aleksey Nikiforov

Among their accolades, Bjerrum was recognized as a Member of the National Academy of Sciences in 1952.

Best Publications

  • Approaches and Recent Development of Polymer Electrolyte Membranes for Fuel Cells Operating above 100 °C

    Qingfeng Li;Ronghuan He;Jens Oluf Jensen;Niels J. Bjerrum

  • High temperature proton exchange membranes based on polybenzimidazoles for fuel cells

    Qingfeng Li;Jens Oluf Jensen;Robert F. Savinell;Niels J. Bjerrum

  • Hollow Spheres of Iron Carbide Nanoparticles Encased in Graphitic Layers as Oxygen Reduction Catalysts

    Yang Hu;Yang Hu;Jens Oluf Jensen;Wei Zhang;Lars Nilausen Cleemann

  • Aluminum as anode for energy storage and conversion: a review

    Qingfeng Li;Niels J Bjerrum

  • The CO Poisoning Effect in PEMFCs Operational at Temperatures up to 200°C

    Qingfeng Li;Ronghuan He;Ji-An Gao;Jens Oluf Jensen

  • PBI‐Based Polymer Membranes for High Temperature Fuel Cells – Preparation, Characterization and Fuel Cell Demonstration

    Q. Li;R. He;J.O. Jensen;N.J. Bjerrum

  • Infrared spectra of amorphous and crystalline calcium carbonate

    Flemming A. Andersen;Ljerka Brecevic;Georg Beuter;Daniela Belli Dell'amico

  • Proton conductivity of phosphoric acid doped polybenzimidazole and its composites with inorganic proton conductors

    Ronghuan He;Qingfeng Li;Gang Xiao;Niels J. Bjerrum

  • Structure and Properties of Ice.

    Niels Bjerrum

  • Phosphoric acid doped polybenzimidazole membranes: Physiochemical characterization and fuel cell applications

    Li Qingfeng;Hans Aage Hjuler;Niels Bjerrum

  • Water uptake and acid doping of polybenzimidazoles as electrolyte membranes for fuel cells

    Qingfeng Li;Ronghuan He;Rolf W. Berg;Hans A. Hjuler

  • Physicochemical properties of phosphoric acid doped polybenzimidazole membranes for fuel cells

    Ronghuan He;Qingfeng Li;Anders Bach;Jens Oluf Jensen

  • Miscibility Behavior of Polybenzimidazole/Sulfonated Polysulfone Blends for Use in Fuel Cell Applications

    V. Deimede;G. A. Voyiatzis;J. K. Kallitsis;L. Qingfeng

  • Cross-Linked Polybenzimidazole Membranes for Fuel Cells

    Qingfeng Li;Chao Pan;Jens Oluf Jensen;Pernille Precht Noyé

  • Transition metal carbides (WC, Mo2C, TaC, NbC) as potential electrocatalysts for the hydrogen evolution reaction (HER) at medium temperatures

    Simon Meyer;Aleksey V. Nikiforov;Irina M. Petrushina;Klaus Köhler

  • Properties, degradation and high temperature fuel cell test of different types of PBI and PBI blend membranes

    Qingfeng Li;Hans Christian Rudbeck;Andreas Chromik;Jens Oluf Jensen

  • Integration of high temperature PEM fuel cells with a methanol reformer

    Chao Pan;Ronghuan He;Qingfeng Li;Jens Oluf Jensen

  • Polymer electrolyte membrane fuel cells

    Niels Janniksen Bjerrum;Hans Aage Hjuler;Quingfeng Li

  • Crosslinked Hexafluoropropylidene Polybenzimidazole Membranes with Chloromethyl Polysulfone for Fuel Cell Applications

    Jingshuai Yang;Qingfeng Li;Lars Nilausen Cleemann;Jens Oluf Jensen

  • Thermal curing of PBI membranes for high temperature PEM fuel cells

    David Aili;Lars N. Cleemann;Qingfeng Li;Jens Oluf Jensen

Frequent Co-Authors

Qingfeng Li
Qingfeng Li Technical University of Denmark
Jens Oluf Jensen
Jens Oluf Jensen Technical University of Denmark
Rasmus Fehrmann
Rasmus Fehrmann Technical University of Denmark
George Papatheodorou
George Papatheodorou University of Patras
Wei Xing
Wei Xing Chinese Academy of Sciences
Bernt Krebs
Bernt Krebs University of Münster
Jochen Kerres
Jochen Kerres Helmholtz Institute Erlangen-Nürnberg
Niels Bay
Niels Bay Technical University of Denmark
Fausto Calderazzo
Fausto Calderazzo University of Pisa
Bin Zhu
Bin Zhu Southeast University

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