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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 76 4302 3906 1353 1133 266 18467

James E. Penner-Hahn publications per year

The chart shows the history of publications by James E. Penner-Hahn between 1983 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. James E. Penner-Hahn published across 44 years, from 1983 to 2026, averaging 6.4 papers a year. Output peaked at 15 publications in 1989. 6 of the 281 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1983 to 2026. Vertical axis: number of publications, 0 to 15. Peak 15 publications in 1989. 1983: 1 publication 1984: 5 publications 1985: 3 publications 1986: 10 publications 1987: 4 publications 1988: 3 publications 1989: 15 publications 1990: 7 publications 1991: 4 publications 1992: 5 publications 1993: 14 publications 1994: 9 publications 1995: 12 publications 1996: 12 publications 1997: 10 publications 1998: 12 publications 1999: 7 publications 2000: 10 publications 2001: 7 publications 2002: 5 publications 2003: 10 publications 2004: 7 publications 2005: 7 publications 2006: 3 publications 2007: 8 publications 2008: 5 publications 2009: 4 publications 2010: 8 publications 2011: 3 publications 2012: 4 publications 2013: 7 publications 2014: 9 publications 2015: 4 publications 2016: 3 publications 2017: 1 publication 2018: 11 publications 2019: 6 publications 2020: 8 publications 2021: 3 publications 2022: 4 publications 2023: 1 publication 2024: 4 publications 2025: 4 publications 2026: 2 publications
1983 2026

281 publications in total across all disciplines

View publications per year as a table
James E. Penner-Hahn: publications per year, 1983 to 2026
Year Publications
1983 1
1984 5
1985 3
1986 10
1987 4
1988 3
1989 15
1990 7
1991 4
1992 5
1993 14
1994 9
1995 12
1996 12
1997 10
1998 12
1999 7
2000 10
2001 7
2002 5
2003 10
2004 7
2005 7
2006 3
2007 8
2008 5
2009 4
2010 8
2011 3
2012 4
2013 7
2014 9
2015 4
2016 3
2017 1
2018 11
2019 6
2020 8
2021 3
2022 4
2023 1
2024 4
2025 4
2026 2
Total 281
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James E. Penner-Hahn 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 E. Penner-Hahn sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 261–280 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 266 publications — 54th percentile

54% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979 266
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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James E. Penner-Hahn 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 E. Penner-Hahn sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 76–77 D-Index, is where this scientist sits. 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
40–41 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.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437 76
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Research.com Recognitions

  • 2004 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1991 - Fellow of Alfred P. Sloan Foundation

Overview

James E. Penner-Hahn is affiliated with the University of Michigan-Ann Arbor in the United States. Their research spans the field of Biochemistry, Genetics and Molecular Biology with a focus on Molecular Biology, as well as areas intersecting Renewable Energy, Sustainability and the Environment, and Materials Chemistry.

Their recent scholarly output demonstrates engagement with topics such as Porphyrin Metabolism and Disorders, Folate and B Vitamins Research, Porphyrin and Phthalocyanine Chemistry, Metalloenzymes and Iron-Sulfur Proteins, Enzyme Function and Inhibition, Metal-Catalyzed Oxygenation Mechanisms, and Advanced Biosensing and Bioanalysis Techniques.

Notable recent publications include:

  • Determining the coordination environment and electronic structure of polymer-encapsulated cobalt phthalocyanine under electrocatalytic CO2 reduction conditions using in situ X-Ray absorption spectroscopy, 2020, Dalton Transactions
  • Probing a Silent Metal: A Combined X-ray Absorption and Emission Spectroscopic Study of Biologically Relevant Zinc Complexes, 2020, Inorganic Chemistry
  • An Interprotein Co-S Coordination Complex in the B12-Trafficking Pathway, 2020, Journal of the American Chemical Society
  • The Photoactive Excited State of the B12-Based Photoreceptor CarH, 2020, The Journal of Physical Chemistry B
  • Traversing the Red-Green-Blue Color Spectrum in Rationally Designed Cupredoxins, 2020, Journal of the American Chemical Society

The scientist has frequently published in venues such as the Journal of the American Chemical Society, The Journal of Physical Chemistry B, Inorganic Chemistry, Dalton Transactions, and Chemistry - A European Journal.

Collaborations have often involved several co-authors with whom there is a track record of multiple joint publications. These include Aniruddha Deb, Roseanne J. Sension, Vincent L. Pecoraro, Taylor P. McClain, and Ryan M. Lamb.

Awards recognizing their contributions include being named a Fellow of the American Association for the Advancement of Science (AAAS) in 2004 and Fellow of the Alfred P. Sloan Foundation in 1991.

Best Publications

  • X-ray absorption edge determination of the oxidation state and coordination number of copper: application to the type 3 site in Rhus vernicifera laccase and its reaction with oxygen

    Lung Shan Kau;Darlene J. Spira-Solomon;James E. Penner-Hahn;Keith O. Hodgson

  • Metal ion chaperone function of the soluble Cu(I) receptor Atx1.

    R. A. Pufahl;C. P. Singer;K. L. Peariso;S. J. Lin

  • Effect of Dopants on Zirconia Stabilization—An X‐ray Absorption Study: I, Trivalent Dopants

    Ping Li;I‐Wei ‐W Chen;James E. Penner‐Hahn

  • Structural, spectroscopic, and reactivity models for the manganese catalases.

    Amy J. Wu;James E. Penner-Hahn;Vincent L. Pecoraro

  • Oxidation state of gold and arsenic in gold-bearing arsenian pyrite

    Grigore Simon;Hui Huang;James E. Penner-Hahn;Stephen E. Kesler

  • X-ray-absorption studies of zirconia polymorphs. I. Characteristic local structures.

    Ping Li;I-Wei Chen;James E. Penner-Hahn

  • X-ray absorption spectroscopic studies of the blue copper site: Metal and ligand K-edge studies to probe the origin of the EPR hyperfine splitting in plastocyanin

    Susan E. Shadle;James E. Penner-Hahn;Harvey J. Schugar;Britt Hedman

  • Structural characterization of horseradish peroxidase using EXAFS spectroscopy: evidence for Fe=O ligation in compounds I and II

    James E. Penner-Hahn;Kim. Smith Eble;Thomas J. McMurry;Mark. Renner

  • X-ray-absorption studies of zirconia polymorphs. II. Effect of Y2O3 dopant on ZrO2 structure.

    Ping Li;I-Wei Chen;James E. Penner-Hahn

  • EXAFS and Near Edge Structure III

    Keith O. Hodgson;Britt Hedman;James E. Penner-Hahn

  • X-ray absorption spectroscopy in coordination chemistry

    James E. Penner-Hahn;James E. Penner-Hahn

  • Sulfur speciation in heavy petroleums: Information from X-ray absorption near-edge structure

    Geoffrey S. Waldo;Robert M.K. Carlson;J.Michael Moldowan;Kenneth E. Peters

  • Reexamination of lead(II) coordination preferences in sulfur-rich sites: implications for a critical mechanism of lead poisoning.

    John S. Magyar;O Tsu-Chien Weng;Charlotte M. Stern;David F. Dye

  • Cu(I) Recognition Via Cation-Pi and Methionine Interactions in Cusf.

    Yi Xue;Anna V Davis;Gurusamy Balakrishnan;Jay P Stasser

  • Structural characterization and thermal stability of MoS2 intercalation compounds

    Keenan E. Dungey;M. David Curtis;James E. Penner-Hahn

  • A short Fe-Fe distance in peroxodiferric ferritin: control of Fe substrate versus cofactor decay?

    Jungwon Hwang;Carsten Krebs;Boi Hanh Huynh;Dale E. Edmondson

  • Structural characterization of the manganese sites in the photosynthetic oxygen-evolving complex using x-ray absorption spectroscopy

    James E. Penner-Hahn;Richard M. Fronko;Vincent L. Pecoraro;Charles F. Yocum

  • Effect of Dopants on Zirconia Stabilization—An X‐ray Absorption Study: III, Charge‐Compensating Dopants

    Ping Li;I‐Wei ‐W Chen;James E. Penner‐Hahn

  • The physical and chemical action of fire suppressants

    Ronald S. Sheinson;James E. Penner-Hahn;Doren Indritz

  • Synthesis, characterization, and in vitro testing of superparamagnetic iron oxide nanoparticles targeted using folic acid-conjugated dendrimers

    Kevin J. Landmark;Stassi DiMaggio;Jesse Ward;Christopher Kelly

Frequent Co-Authors

Vincent L. Pecoraro
Vincent L. Pecoraro University of Michigan–Ann Arbor
Keith O. Hodgson
Keith O. Hodgson Stanford University
Charles F. Yocum
Charles F. Yocum University of Michigan–Ann Arbor
Thomas V. O'Halloran
Thomas V. O'Halloran Northwestern University
Edward I. Solomon
Edward I. Solomon Stanford University
Britt Hedman
Britt Hedman SLAC National Accelerator Laboratory
Carol A. Fierke
Carol A. Fierke Texas A&M University
I-Wei Chen
I-Wei Chen University of Pennsylvania
John H. Dawson
John H. Dawson University of South Carolina
Rowena G. Matthews
Rowena G. Matthews University of Michigan–Ann Arbor

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