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Aaron M. Appel

D-Index & Metrics

Chemistry

D-Index
41
Citations
8799
World Ranking
17673
National Ranking
4314

Aaron M. Appel 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 Aaron M. Appel 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: 110 publications — 4th percentile

4% of scientists in this discipline score the same or lower.

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

Aaron M. Appel 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 Aaron M. Appel 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: 41 D-Index — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Overview

Aaron M. Appel is a researcher affiliated with the Pacific Northwest National Laboratory in the United States. Their work primarily spans the field of Materials Science, with a focus on Materials Chemistry and related subfields including Renewable Energy, Sustainability and the Environment, Inorganic Chemistry, Catalysis, and Organic Chemistry.

Their research covers several key scientific topics such as:

  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • CO2 Reduction Techniques and Catalysts
  • Asymmetric Hydrogenation and Catalysis
  • Electrocatalysts for Energy Conversion
  • Carbon dioxide utilization in catalysis
  • Ammonia Synthesis and Nitrogen Reduction

Aaron M. Appel has contributed to multiple research articles with notable recent publications including:

  • "Maximum and Comparative Efficiency Calculations for Integrated Capture and Electrochemical Conversion of CO 2" (2024), published in ACS Energy Letters
  • "Molecular Catalysts with Diphosphine Ligands Containing Pendant Amines" (2022), published in Chemical Reviews
  • "Determining overpotentials for the oxidation of alcohols by molecular electrocatalysts in non-aqueous solvents" (2022), published in Energy & Environmental Science
  • "Electrocatalytic Oxidation of Alcohol with Cobalt Triphosphine Complexes" (2021), published in ACS Catalysis
  • "Oxidation of Ammonia with Molecular Complexes" (2020), published in Journal of the American Chemical Society

Frequent collaborators in Aaron M. Appel's research include Eric S. Wiedner, Andrew Z. Preston, Monte L. Helm, R. Morris Bullock, and Amy L. Speelman.

Their publications regularly appear in venues such as:

  • The Cambridge Structural Database
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
  • ACS Catalysis
  • The Journal of Physical Chemistry A
  • Organometallics

Best Publications

  • Frontiers, Opportunities, and Challenges in Biochemical and Chemical Catalysis of CO2 Fixation

    Aaron M. Appel;John E. Bercaw;Andrew B. Bocarsly;Holger Dobbek

  • Thermodynamic Hydricity of Transition Metal Hydrides

    Eric S. Wiedner;Matthew B. Chambers;Catherine L. Pitman;R. Morris Bullock

  • Determining the Overpotential for a Molecular Electrocatalyst

    Aaron M. Appel;Monte L. Helm

  • A cobalt-based catalyst for the hydrogenation of CO2 under ambient conditions.

    Matthew S. Jeletic;Michael T. Mock;Aaron M. Appel;John C. Linehan

  • [Ni(PPh2NC6H4X2)2]2+ Complexes as Electrocatalysts for H2 Production: Effect of Substituents, Acids, and Water on Catalytic Rates

    Uriah J. Kilgore;John A. S. Roberts;Douglas H. Pool;Aaron M. Appel

  • Production of hydrogen by electrocatalysis: making the H–H bond by combining protons and hydrides

    R. Morris Bullock;Aaron M. Appel;Monte L. Helm

  • Standard Reduction Potentials for Oxygen and Carbon Dioxide Couples in Acetonitrile and N,N-Dimethylformamide.

    Michael L. Pegis;John A. S. Roberts;Derek J. Wasylenko;Elizabeth A. Mader

  • Molybdenum-sulfur dimers as electrocatalysts for the production of hydrogen at low overpotentials.

    Aaron M. Appel;Daniel L. DuBois;M. Rakowski DuBois

  • Surface Immobilization of Molecular Electrocatalysts for Energy Conversion.

    R. Morris Bullock;Atanu K. Das;Aaron M. Appel

  • A Bimetallic Nickel–Gallium Complex Catalyzes CO2 Hydrogenation via the Intermediacy of an Anionic d10 Nickel Hydride

    Ryan C. Cammarota;Matthew V. Vollmer;Jing Xie;Jingyun Ye

  • [Cu(I)(bpp)]BF4: the first extended coordination network prepared solvothermally in an ionic liquid solvent.

    Kun Jin;Xiaoying Huang;Long Pang;Jing Li

  • A Molecular Copper Catalyst for Hydrogenation of CO2 to Formate

    Christopher M. Zall;John C. Linehan;Aaron M. Appel

  • Thermodynamic Properties of the Ni−H Bond in Complexes of the Type [HNi(P2RN2R‘)2](BF4) and Evaluation of Factors That Control Catalytic Activity for Hydrogen Oxidation/Production

    Kendra Fraze;Aaron D. Wilson;Aaron M. Appel;M. Rakowski DuBois, ,†,‡ and

  • Molecular Catalysts with Diphosphine Ligands Containing Pendant Amines.

    Unknown

  • Evaluating the Thermodynamics of Electrocatalytic N2 Reduction in Acetonitrile

    Brian M. Lindley;Aaron M. Appel;Karsten Krogh-Jespersen;James M. Mayer

  • Oxidation of Ammonia with Molecular Complexes

    Peter L. Dunn;Brian J. Cook;Samantha I. Johnson;Aaron M. Appel

  • Proton Delivery and Removal in [Ni(PR2NR'2)2]2+ Hydrogen Production and Oxidation Catalysts

    Molly Ohagan;Ming Hsun Ho;Jenny Y. Yang;Aaron M. Appel

  • Electrocatalytic Oxidation of Formate by [Ni(PR2NR′2)2(CH3CN)]2+ Complexes

    Brandon R. Galan;Julia Schöffel;John C. Linehan;Candace Seu

  • Triphosphine-Ligated Copper Hydrides for CO2 Hydrogenation: Structure, Reactivity, and Thermodynamic Studies

    Christopher M. Zall;John C. Linehan;Aaron M. Appel

  • [Ni(PPh2NBn2)2(CH3CN)]2+ as an Electrocatalyst for H2 Production: Dependence on Acid Strength and Isomer Distribution

    Aaron M. Appel;Douglas H. Pool;Molly O’Hagan;Wendy J. Shaw

  • A Cobalt Hydride Catalyst for the Hydrogenation of CO2: Pathways for Catalysis and Deactivation

    Matthew S. Jeletic;Monte L. Helm;Elliott B. Hulley;Michael T. Mock

  • Thermochemical and mechanistic studies of electrocatalytic hydrogen production by cobalt complexes containing pendant amines.

    Eric S. Wiedner;Aaron M. Appel;Daniel L. DuBois;R. Morris Bullock

Frequent Co-Authors

R. Morris Bullock
R. Morris Bullock Pacific Northwest National Laboratory
Daniel L. DuBois
Daniel L. DuBois Pacific Northwest National Laboratory
John C. Linehan
John C. Linehan Pacific Northwest National Laboratory
Wendy J. Shaw
Wendy J. Shaw Pacific Northwest National Laboratory
John Roberts
John Roberts Rice University
Simone Raugei
Simone Raugei Pacific Northwest National Laboratory
Alexander J. M. Miller
Alexander J. M. Miller University of North Carolina at Chapel Hill
James M. Mayer
James M. Mayer Yale University
David A. Dixon
David A. Dixon University of Alabama
Michel Dupuis
Michel Dupuis University at Buffalo, State University of New York

External Links

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Related Online Degrees & Career Pathways

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Best Scientists Citing Aaron M. Appel

R. Morris Bullock

R. Morris Bullock

Pacific Northwest National Laboratory

Publications: 69

Christopher J. Chang

Christopher J. Chang

Princeton University

Publications: 47

Daniel L. DuBois

Daniel L. DuBois

Pacific Northwest National Laboratory

Publications: 42

Simone Raugei

Simone Raugei

Pacific Northwest National Laboratory

Publications: 34

Clifford P. Kubiak

Clifford P. Kubiak

University of California, San Diego

Publications: 33

Wendy J. Shaw

Wendy J. Shaw

Pacific Northwest National Laboratory

Publications: 32

Jeffrey R. Long

Jeffrey R. Long

Lawrence Berkeley National Laboratory

Publications: 31

Shunichi Fukuzumi

Shunichi Fukuzumi

Osaka University

Publications: 30

Vincent Artero

Vincent Artero

Grenoble Alpes University

Publications: 29

Licheng Sun

Licheng Sun

Royal Institute of Technology

Publications: 26

Etsuko Fujita

Etsuko Fujita

Brookhaven National Laboratory

Publications: 25

Yuichiro Himeda

Yuichiro Himeda

National Institute of Advanced Industrial Science and Technology

Publications: 24

Martin Head-Gordon

Martin Head-Gordon

University of California, Berkeley

Publications: 23

Paul J. A. Kenis

Paul J. A. Kenis

University of Illinois at Urbana-Champaign

Publications: 22

James M. Mayer

James M. Mayer

Yale University

Publications: 22

Alexander J. M. Miller

Alexander J. M. Miller

University of North Carolina at Chapel Hill

Publications: 21

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