World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
111
Citations
50741
World Ranking
762
National Ranking
39

James H. Clark 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 James H. Clark 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: 727 publications — 96th percentile

96% of scientists in this discipline score the same or lower.

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

James H. Clark 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 James H. Clark 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: 111 D-Index — 96th percentile

96% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

James H. Clark is affiliated with the University of York in the United Kingdom. They are an active researcher in engineering, with a focus on biomedical engineering, organic chemistry, materials chemistry, mechanical engineering, and environmental chemistry as subfields of study.

Their research covers several main topics, including:

  • Catalysis for Biomass Conversion
  • Lignin and Wood Chemistry
  • Chemistry and Chemical Engineering
  • Catalysis and Hydrodesulfurization Studies
  • Biofuel production and bioconversion
  • Thermochemical Biomass Conversion Processes
  • Nanomaterials for catalytic reactions

James H. Clark has contributed numerous papers to several frequent publication venues. These include:

  • Green Chemistry (25 publications)
  • ACS Sustainable Chemistry & Engineering (9 publications)
  • Journal of Cleaner Production (6 publications)
  • ChemSusChem (5 publications)
  • Journal of Hazardous Materials (5 publications)

Their recent papers reflect diverse topics within sustainable chemistry and catalysis:

  • "Biorenewable hydrogen production through biomass gasification: A review and future prospects," 2020, Environmental Research
  • "Recent Advances in the Catalytic Depolymerization of Lignin towards Phenolic Chemicals: A Review," 2020, ChemSusChem
  • "Rethinking chemistry for a circular economy," 2020, Science
  • "Rapid and efficient adsorption of methylene blue dye from aqueous solution by hierarchically porous, activated starbons®: Mechanism and porosity dependence," 2022, Journal of Hazardous Materials
  • "Green chemicals from used cooking oils: Trends, challenges, and opportunities," 2020, Current Opinion in Green and Sustainable Chemistry

James H. Clark has worked with multiple frequent co-authors, including:

  • Jiajun Fan (45 collaborations)
  • Shicheng Zhang (30 collaborations)
  • Gang Luo (19 collaborations)
  • Vitaliy L. Budarin (18 collaborations)
  • Daniel C.W. Tsang (17 collaborations)

Best Publications

  • Supported metal nanoparticles on porous materials. Methods and applications.

    Robin J. White;Rafael Luque;Vitaliy L. Budarin;James H. Clark

  • Tools and techniques for solvent selection: green solvent selection guides

    Fergal P. Byrne;Saimeng Jin;Giulia Paggiola;Tabitha H. M. Petchey

  • Sustainable carbon materials

    Maria-Magdalena Titirici;Robin J. White;Nicolas Brun;Vitaliy L. Budarin

  • Food waste as a valuable resource for the production of chemicals, materials and fuels. Current situation and global perspective

    Carol Sze Ki Lin;Lucie A. Pfaltzgraff;Lorenzo Herrero-Davila;Egid B. Mubofu

  • Green chemistry: challenges and opportunities

    James H. Clark

  • Solid Acids for Green Chemistry

    James H. Clark

  • Biofuels: a technological perspective

    Rafael Luque;Rafael Luque;Lorenzo Herrero-Davila;Juan M. Campelo;James H. Clark

  • Fluoride ion as a base in organic synthesis

    James H. Clark

  • Recent developments on the epoxidation of alkenes using hydrogen peroxide as an oxidant

    G. Grigoropoulou;J. H. Clark;J. A. Elings

  • Biorenewable hydrogen production through biomass gasification: A review and future prospects

    Leichang Cao;Iris K.M. Yu;Xinni Xiong;Daniel C.W. Tsang

  • Food waste biomass: a resource for high-value chemicals

    Lucie A. Pfaltzgraff;Mario De bruyn;Emma C. Cooper;Vitaly Budarin

  • Tuneable porous carbonaceous materials from renewable resources

    Robin J. White;Vitaly Budarin;Rafael Luque;Rafael Luque;James H. Clark

  • Towards a holistic approach to metrics for the 21st century pharmaceutical industry

    C. Robert McElroy;Andri Constantinou;Leonie C. Jones;Louise Summerton

  • Introduction to chemicals from biomass

    James H. Clark;Fabien E. I. Deswarte

  • Dihydrolevoglucosenone (Cyrene) as a bio-based alternative for dipolar aprotic solvents.

    James Sherwood;Mario De bruyn;Andri Constantinou;Laurianne Moity

  • The production of furfural directly from hemicellulose in lignocellulosic biomass : A review

    Yiping Luo;Yiping Luo;Zheng Li;Xiaoling Li;Xiaofeng Liu

  • Catalysis of liquid phase organic reactions using chemically modified mesoporous inorganic solids

    James H. Clark;Duncan J. Macquarrie

  • Generation, capture, and utilization of industrial carbon dioxide

    Andrew J. Hunt;Emily H. K. Sin;Ray Marriott;James H. Clark

  • Green chemistry and the biorefinery: a partnership for a sustainable future

    James H. Clark;Vitaly Budarin;Fabien E. I. Deswarte;Jeffrey J. E. Hardy

  • Green synthesis of gamma-valerolactone (GVL) through hydrogenation of biomass-derived levulinic acid using non-noble metal catalysts : A critical review

    Shanta Dutta;Iris K.M. Yu;Iris K.M. Yu;Daniel C.W. Tsang;Yun Hau Ng

  • Solid acids and their use as environmentally friendly catalysts in organic synthesis

    Karen Wilson;James H. Clark

Frequent Co-Authors

Duncan J. Macquarrie
Duncan J. Macquarrie University of York
Andrew J. Hunt
Andrew J. Hunt Khon Kaen University
Rafael Luque
Rafael Luque King Saud University
Karen Wilson
Karen Wilson Griffith University
Dave J. Adams
Dave J. Adams University of Glasgow
Changwei Hu
Changwei Hu Sichuan University
Babak Karimi
Babak Karimi Institute for Advanced Studies in Basic Sciences
Shicheng Zhang
Shicheng Zhang Fudan University
Daniel C.W. Tsang
Daniel C.W. Tsang Hong Kong University of Science and Technology
Keith Scott
Keith Scott Newcastle University

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