World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
76
Citations
21470
World Ranking
4226
National Ranking
1337

John R. Bargar 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 John R. Bargar 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: 322 publications — 68th percentile

68% of scientists in this discipline score the same or lower.

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

John R. Bargar 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 John R. Bargar 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: 76 D-Index — 77th percentile

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

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

Overview

John R. Bargar is affiliated with the SLAC National Accelerator Laboratory in the United States. Their research spans multiple fields, primarily focusing on Earth and Planetary Sciences, Environmental Science, and Physics and Astronomy. Within these broader fields, their work notably covers subfields such as Geophysics, Environmental Chemistry, Astronomy and Astrophysics, Oceanography, and Aerospace Engineering.

The scientist's research topics include Methane Hydrates and Related Phenomena, Seismic Waves and Analysis, Ionosphere and Magnetosphere Dynamics, Geophysics and Gravity Measurements, Earthquake Detection and Analysis, GNSS Positioning and Interference, and Hydraulic Fracturing and Reservoir Analysis.

John R. Bargar has published extensively, with frequent contributions to the following venues:

  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
  • Environmental Science & Technology
  • Goldschmidt Abstracts
  • Zenodo (CERN European Organization for Nuclear Research)
  • Goldschmidt2022 abstracts

Recent papers authored or co-authored by John R. Bargar include:

  • A Critical Review of the Physicochemical Impacts of Water Chemistry on Shale in Hydraulic Fracturing Systems, 2021, Environmental Science & Technology
  • Chemical and Reactive Transport Processes Associated with Hydraulic Fracturing of Unconventional Oil/Gas Shales, 2022, Chemical Reviews
  • Redox Heterogeneities Promote Thioarsenate Formation and Release into Groundwater from Low Arsenic Sediments, 2020, Environmental Science & Technology
  • Diverse ecophysiological adaptations of subsurface Thaumarchaeota in floodplain sediments revealed through genome-resolved metagenomics, 2021, The ISME Journal
  • Reactive Transport Modeling of Shale-Fluid Interactions after Imbibition of Fracturing Fluids, 2020, Energy & Fuels

Collaboration is a consistent aspect of John R. Bargar's work. Frequent co-authors include:

  • Jason Toyoda
  • Rosalie Chu
  • William Kew
  • Nikola Tolić
  • Montana Smith

Best Publications

  • Identification of Highly Active Fe Sites in (Ni,Fe)OOH for Electrocatalytic Water Splitting

    Daniel Friebel;Mary W. Louie;Mary W. Louie;Michal Bajdich;Kai E. Sanwald;Kai E. Sanwald

  • Biogenic manganese oxides: Properties and mechanisms of formation

    Bradley M. Tebo;John R. Bargar;Brian G. Clement;Gregory J. Dick

  • Characterization of the manganese oxide produced by Pseudomonas putida strain MnB1

    Mario Villalobos;Brandy Toner;John Bargar;Garrison Sposito

  • Surface complexation of Pb(II) at oxide-water interfaces: I. XAFS and bond-valence determination of mononuclear and polynuclear Pb(II) sorption products on aluminum oxides

    J.R. Bargar;G.E. Brown;G.A. Parks

  • Characterization of U(VI)-carbonato ternary complexes on hematite: EXAFS and electrophoretic mobility measurements

    John R Bargar;John R Bargar;Rebecca Reitmeyer;John J Lenhart;James A Davis

  • Environmental speciation of actinides.

    Kate Maher;John R. Bargar;Gordon E. Brown

  • Evidence for the presence of Mn(III) intermediates in the bacterial oxidation of Mn(II)

    Samuel M. Webb;Gregory J. Dick;John R. Bargar;Bradley M. Tebo

  • Structural characterization of biogenic Mn oxides produced in seawater by the marine bacillus sp. strain SG-1

    Sam M. Webb;B. M. Tebo;J. R. Bargar

  • Surface complexation of Pb(II) at oxide-water interfaces: II. XAFS and bond-valence determination of mononuclear Pb(II) sorption products and surface functional groups on iron oxides

    J.R. Bargar;G.E. Brown;G.A. Parks

  • Spectroscopic Confirmation of Uranium(VI)−Carbonato Adsorption Complexes on Hematite

    John R. Bargar;Rebecca Reitmeyer;James A. Davis

  • Thermodynamically controlled preservation of organic carbon in floodplains

    Kristin Boye;Kristin Boye;Vincent Noël;Malak M. Tfaily;Sharon E. Bone

  • Biotic and abiotic products of Mn(II) oxidation by spores of the marine bacillus sp. strain SG-1

    John R. Bargar;Bradley M. Tebo;Uwe Bergmann;Samuel M. Webb

  • Mechanisms of Pb(II) sorption on a biogenic manganese oxide.

    Mario Villalobos;John Bargar;Garrison Sposito

  • Non-uraninite products of microbial U(VI) reduction.

    Rizlan Bernier-Latmani;Harish Veeramani;Elena Dalla Vecchia;Pilar Junier

  • Bacteriogenic manganese oxides.

    Thomas G. Spiro;John R. Bargar;Garrison Sposito;Bradley M. Tebo

  • Surface Precipitation of Co(II)(aq) on Al2O3

    Steven N. Towle;John R. Bargar;Gordon E. Brown;George A. Parks

  • Adsorption of Uranium(VI) to Manganese Oxides: X-ray Absorption Spectroscopy and Surface Complexation Modeling

    Zimeng Wang;Sung Woo Lee;Jeffrey G. Catalano;Juan S. Lezama-Pacheco

  • Uranium redox transition pathways in acetate-amended sediments

    John R. Bargar;Kenneth H. Williams;Kate M. Campbell;Philip E. Long

  • ATR-FTIR spectroscopic characterization of coexisting carbonate surface complexes on hematite

    John R. Bargar;James D. Kubicki;Rebecca Reitmeyer;James A. Davis

  • In Situ Characterization of Mn(II) Oxidation by Spores of the Marine Bacillus sp. strain SG-1

    J.R Bargar;B.M Tebo;J.E Villinski

Frequent Co-Authors

Gordon E. Brown
Gordon E. Brown Stanford University
Daniel E. Giammar
Daniel E. Giammar Washington University in St. Louis
Kenneth H. Williams
Kenneth H. Williams Lawrence Berkeley National Laboratory
James A. Davis
James A. Davis Lawrence Berkeley National Laboratory
Scott Fendorf
Scott Fendorf Stanford University
Samuel M. Webb
Samuel M. Webb SLAC National Accelerator Laboratory
Bradley M. Tebo
Bradley M. Tebo Oregon Health & Science University
Philip E. Long
Philip E. Long Lawrence Berkeley National Laboratory
Garrison Sposito
Garrison Sposito University of California, Berkeley
Kate Maher
Kate Maher Stanford University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students pursuing Chemistry in the USA, several related online degrees can open diverse career pathways. One growing field is forensic psychology, where specialized knowledge in chemistry and biology often plays a vital role. Prospective students can explore forensic psychology master's programs online to combine science with criminal behavior analysis.

Career options extend beyond psychology into forensic science itself, where professionals apply chemical expertise to crime scene investigations. Understanding the forensic scientist salary trends can help students gauge the financial prospects of this rewarding field.

Costs and accessibility are important considerations for many students. Online degrees like criminal justice programs offer flexible and often more affordable alternatives. Insights into criminal justice degree cost help future students plan their education budgets effectively.

For those starting their journey, an accredited online criminal justice associate degree provides a solid foundation. It prepares students for entry-level roles and paves the way for advanced studies or specialized careers intersecting with chemistry and law enforcement.

Best Scientists Citing John R. Bargar

Trending Scientists