World's Best Scientists 2026 revealed!
Costas G. Vayenas

Costas G. Vayenas

D-Index & Metrics

Chemistry

D-Index
57
Citations
10177
World Ranking
11234
National Ranking
43

Costas G. Vayenas 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 Costas G. Vayenas 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: 225 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Costas G. Vayenas 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 Costas G. Vayenas 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: 57 D-Index — 39th percentile

39% 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

  • 2017 - Member of the National Academy of Engineering For fundamental studies on electrochemical modification of catalytic activity leading to the industrial design and use of new promoted catalysts.

Overview

Costas G. Vayenas is affiliated with the University of Patras in Greece. Their research primarily spans the field of Physics and Astronomy, with a significant focus on Nuclear and High Energy Physics, Renewable Energy, Sustainability and the Environment, Materials Chemistry, Astronomy and Astrophysics, and Catalysis.

Their work covers a range of main topics, including:

  • Neutrino Physics Research
  • Particle Physics Theoretical and Experimental Studies
  • Astrophysics and Cosmic Phenomena
  • CO2 Reduction Techniques and Catalysts
  • Dark Matter and Cosmic Phenomena
  • Electrocatalysts for Energy Conversion
  • Catalysts for Methane Reforming

Vayenas has contributed to various scientific publications, including frequent articles in these venues:

  • Open Access Government
  • Applied Catalysis B: Environmental
  • ACS Catalysis
  • Particle Physics at the Year of 150th Anniversary of the Mendeleev's Periodic Table of Chemical Elements
  • Chemical Engineering Journal

Recent papers include:

  • Electrochemical promotion of Ru nanoparticles deposited on a proton conductor electrolyte during CO2 hydrogenation, 2020, Applied Catalysis B: Environmental
  • Tuning the RWGS Reaction via EPOC and In Situ Electro-oxidation of Cobalt Nanoparticles, 2020, ACS Catalysis
  • Electrochemical promotion of CO2 hydrogenation in a monolithic electrochemically promoted reactor (MEPR), 2020, Applied Catalysis B: Environmental
  • Kinetic study of CO2 hydrogenation on Ru/ YSZ catalyst using a monolithic electropromoted reactor (MEPR), 2021, Chemical Engineering Journal
  • A low temperature SOFC as a self-promoted reactor for CO2 catalytic hydrogenation, 2022, Applied Catalysis B: Environmental

Collaborations have been an important aspect of their research, with frequent co-authors including:

  • Dionysios G. Tsousis
  • Dimitrios Grigoriou
  • Alexandros Katsaounis
  • Eftychia Martino
  • Dimitrios Zagoraios

Vayenas was recognized as a Member of the National Academy of Engineering in 2017, cited for fundamental studies on electrochemical modification of catalytic activity that contributed to the industrial design and use of new promoted catalysts.

Best Publications

  • Dependence of catalytic rates on catalyst work function

    C. G. Vayenas;S. Bebelis;S. Ladas

  • Non-faradaic electrochemical modification of catalytic activity: A status report

    C.G. Vayenas;S. Bebelis;I.V. Yentekakis;H.-G. Lintz

  • Non-faradaic electrochemical modification of catalytic activity

    C. G. Vayenas;S. Bebelis;S. Neophytides

  • Ionically conducting ceramics as active catalyst supports.

    Unknown

  • Origin of non-faradaic electrochemical modification of catalytic activity

    S. Ladas;S. Kennou;S. Bebelis;C. G. Vayenas

  • Modern Aspects Of Electrochemistry

    Unknown

  • Methane to ethylene with 85 percent yield in a gas recycle electrocatalytic reactor-separator.

    Y. Jiang;I. V. Yentekakis;C. G. Vayenas

  • Electrochemical Promotion and Metal–Support Interactions

    J Nicole;D Tsiplakides;C Pliangos;X.E Verykios

  • Electrochemical enhancement of a catalytic reaction in aqueous solution

    S.G. Neophytides;D. Tsiplakides;P. Stonehart;M.M. Jaksic

  • In situ controlled promotion of catalyst surfaces via NEMCA: The effect of Na on the Pt-catalyzed CO oxidation

    I.V. Yentekakis;G. Moggridge;C.G. Vayenas;R.M. Lambert

  • The effect of membrane thickness on the conductivity of Nafion

    M.N. Tsampas;A. Pikos;S. Brosda;A. Katsaounis

  • Rules of chemical promotion

    S. Brosda;C.G. Vayenas;J. Wei

  • Electrode Work Function and Absolute Potential Scale in Solid-State Electrochemistry

    Dimitrios Tsiplakides;C.G. Vayenas

  • Non-faradaic electrochemical modification of catalytic activity 4. The use of $beta;$Prime;-Al2O3 as the solid electrolyte

    C.G. Vayenas;S. Bebelis;M. Despotopoulou

  • Rules and Mathematical Modeling of Electrochemical and Chemical Promotion

    Unknown

  • Work function measurements on catalyst films subject to in situ electrochemical promotion

    S. Ladas;S. Bebelis;C.G. Vayenas

  • The Electrochemical Activation of Catalytic Reactions

    Constantinos G. Vayenas;Milan M. Jaksic;Symeon I. Bebelis;Stylianos G. Neophytides

  • Electrochemical modification of CH3OH oxidation selectivity and activity on a Pt single-pellet catalytic reactor

    C. A. Cavalca;G. Larsen;C. G. Vayenas;G. L. Haller

  • The double-layer approach to promotion, electrocatalysis, electrochemical promotion, and metal–support interactions

    Unknown

  • Chemical Cogeneration in Solid Electrolyte Cells The Oxidation of to

    I. V. Yentekakis;C. G. Vayenas

  • Non-Faradaic Electrochemical Modification of Catalytic Activity: VIII. Rh-Catalyzed C2H4 Oxidation

    C. Pliangos;I.V. Yentekakis;X.E. Verykios;C.G. Vayenas

  • Non-Faradaic Electrochemical Modification of Catalytic Activity 9. Ethylene Oxidation on Pt Deposited on TiO2

    C. Pliangos;I.V. Yentekakis;S. Ladas;C.G. Vayenas

  • Comparative isotope-aided investigation of electrochemical promotion and metal–support interactions 1. 18O2 TPD of electropromoted Pt films deposited on YSZ and of dispersed Pt/YSZ catalysts

    A. Katsaounis;Z. Nikopoulou;X.E. Verykios;C.G. Vayenas

  • Non-Faradaic Electrochemical Modification of Catalytic Activity: VII. The Case of Methane Oxidation on Platinum

    P. Tsiakaras;C.G. Vayenas

  • Support-induced promotional effects on the activity of automotive exhaust catalysts1. The case of oxidation of light hydrocarbons (C2H4)

    C. Pliangos;I.V. Yentekakis;V.G. Papadakis;C.G. Vayenas

Frequent Co-Authors

Xenophon E. Verykios
Xenophon E. Verykios University of Patras
Panagiotis Tsiakaras
Panagiotis Tsiakaras University Of Thessaly
Elena A. Baranova
Elena A. Baranova University of Ottawa
Piyasan Praserthdam
Piyasan Praserthdam Chulalongkorn University
Suttichai Assabumrungrat
Suttichai Assabumrungrat Chulalongkorn University
Stylianos G. Neophytides
Stylianos G. Neophytides Foundation for Research and Technology Hellas
José Luis Valverde
José Luis Valverde University of Castilla-La Mancha
Richard M. Lambert
Richard M. Lambert University of Cambridge
George Papatheodorou
George Papatheodorou University of Patras
Frank Tietz
Frank Tietz Forschungszentrum Jülich

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