World's Best Scientists 2026 revealed!
Thongthai Witoon

Thongthai Witoon

D-Index & Metrics

Chemistry

D-Index
45
Citations
5619
World Ranking
16614
National Ranking
29

Thongthai Witoon 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 Thongthai Witoon 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: 131 publications — 8th percentile

8% of scientists in this discipline score the same or lower.

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

Thongthai Witoon 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 Thongthai Witoon 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: 45 D-Index — 10th percentile

10% of scientists in this discipline score the same or lower.

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

Overview

Thongthai Witoon is affiliated with Kasetsart University in Thailand and has established a significant presence in the fields of Materials Science, Chemical Engineering, and Engineering. The primary focus of their research covers various subfields, including Materials Chemistry, Catalysis, Biomedical Engineering, Mechanical Engineering, and Inorganic Chemistry.

Their work extensively addresses topics related to Catalytic Processes in Materials Science, Catalysts for Methane Reforming, Catalysis and Oxidation Reactions, Catalysis and Hydrodesulfurization Studies, Catalysis for Biomass Conversion, Carbon Dioxide Utilization in Catalysis, and Zeolite Catalysis and Synthesis.

Thongthai Witoon's publication record features several recent scientific papers, including:

  • Advances in catalytic production of value-added biochemicals and biofuels via furfural platform derived lignocellulosic biomass (2021, Biomass and Bioenergy)
  • Role of Calcination Temperatures of ZrO2 Support on Methanol Synthesis from CO2 Hydrogenation at High Reaction Temperatures over ZnOx/ZrO2 Catalysts (2020, Industrial & Engineering Chemistry Research)
  • Effect of reaction conditions on the lifetime of SAPO-34 catalysts in methanol to olefins process - A review (2020, Fuel)
  • Tuning interaction of surface-adsorbed species over Fe/K-Al2O3 modified with transition metals (Cu, Mn, V, Zn or Co) on light olefins production from CO2 hydrogenation (2020, Fuel)
  • Tuning Interactions of Surface-adsorbed Species over Fe−Co/K−Al2O3 Catalyst by Different K Contents: Selective CO2 Hydrogenation to Light Olefins (2020, ChemCatChem)

Frequent coauthors with whom they have collaborated include:

  • Metta Chareonpanich
  • Chin Kui Cheng
  • Thanapha Numpilai
  • Anusorn Seubsai
  • Chularat Wattanakit

Their research outputs have been published mainly in several venues, notably:

  • Topics in Catalysis (8 publications)
  • Chemosphere (6 publications)
  • International Journal of Hydrogen Energy (5 publications)
  • Fuel (4 publications)
  • Process Safety and Environmental Protection (4 publications)

Best Publications

  • CO2 hydrogenation to methanol over Cu/ZrO2 catalysts: Effects of zirconia phases

    Thongthai Witoon;Jiraporn Chalorngtham;Porntipar Dumrongbunditkul;Metta Chareonpanich

  • Characterization of calcium oxide derived from waste eggshell and its application as CO2 sorbent

    Thongthai Witoon

  • CO2 hydrogenation to methanol over CuO–ZnO–ZrO2–SiO2 catalysts: Effects of SiO2 contents

    Thanaree Phongamwong;Usanee Chantaprasertporn;Thongthai Witoon;Thanapa Numpilai

  • Enhanced activity, selectivity and stability of a CuO-ZnO-ZrO2 catalyst by adding graphene oxide for CO2 hydrogenation to methanol

    Thongthai Witoon;Thanapa Numpilai;Thanaree Phongamwong;Waleeporn Donphai

  • Tuning of catalytic CO2 hydrogenation by changing composition of CuO–ZnO–ZrO2 catalysts

    Thongthai Witoon;Nantana Kachaban;Waleeporn Donphai;Pinit Kidkhunthod

  • Structure–activity relationships of Fe-Co/K-Al2O3 catalysts calcined at different temperatures for CO2 hydrogenation to light olefins

    Thanapa Numpilai;Thongthai Witoon;Narong Chanlek;Wanwisa Limphirat

  • Advances in catalytic production of value-added biochemicals and biofuels via furfural platform derived lignocellulosic biomass

    Pongtanawat Khemthong;Chakrit Yimsukanan;Thanitporn Narkkun;Atthapon Srifa

  • Synthesis of bimodal porous silica from rice husk ash via sol–gel process using chitosan as template

    T. Witoon;M. Chareonpanich;J. Limtrakul

  • Biodiesel production from transesterification of palm oil with methanol over CaO supported on bimodal meso-macroporous silica catalyst

    Thongthai Witoon;Sittisut Bumrungsalee;Peerawut Vathavanichkul;Supaphorn Palitsakun

  • Development of synthetic CaO sorbents via CTAB-assisted sol–gel method for CO2 capture at high temperature

    Akarat Akgsornpeak;Thongthai Witoon;Thumrongrut Mungcharoen;Jumras Limtrakul;Jumras Limtrakul

  • Role of Calcination Temperatures of ZrO2 Support on Methanol Synthesis from CO2 Hydrogenation at High Reaction Temperatures over ZnOx/ZrO2 Catalysts

    Chunyanuch Temvuttirojn;Yingyot Poo-arporn;Narong Chanlek;Chin Kui Cheng

  • Optimization of synthesis condition for CO2 hydrogenation to light olefins over In2O3 admixed with SAPO-34

    Thanapa Numpilai;Chularat Wattanakit;Metta Chareonpanich;Jumras Limtrakul

  • Direct synthesis of dimethyl ether from CO2 hydrogenation over Cu–ZnO–ZrO2/SO42−–ZrO2 hybrid catalysts: effects of sulfur-to-zirconia ratios

    Thongthai Witoon;Tinnavat Permsirivanich;Nawapon Kanjanasoontorn;Chalairat Akkaraphataworn

  • Tuning interaction of surface-adsorbed species over Fe/K-Al2O3 modified with transition metals (Cu, Mn, V, Zn or Co) on light olefins production from CO2 hydrogenation

    Nawapat Chaipraditgul;Thanapha Numpilai;Chin Kui Cheng;Nuchanart Siri-Nguan

  • Pore size effects on physicochemical properties of Fe-Co/K-Al2O3 catalysts and their catalytic activity in CO2 hydrogenation to light olefins

    Thanapha Numpilai;Narong Chanlek;Yingyot Poo-Arporn;Suttipong Wannapaiboon

  • Tuning Interactions of Surface-adsorbed Species over Fe-Co/K-Al 2 O 3 Catalyst by Different K Contents: Selective CO 2 Hydrogenation to Light Olefins

    Thanapha Numpilai;Narong Chanlek;Yingyot Poo-Arporn;Chin Kui Cheng

  • Effect of reaction conditions on the lifetime of SAPO-34 catalysts in methanol to olefins process – A review

    Muhammad Sheraz Ahmad;Chin Kui Cheng;Prakash Bhuyar;A.E Atabani

  • CO2 hydrogenation to methanol over Cu/ZnO nanocatalysts prepared via a chitosan-assisted co-precipitation method

    Thongthai Witoon;Tinnavat Permsirivanich;Waleeporn Donphai;Attasak Jaree

  • Rice husk waste into various template-engineered mesoporous silica materials for different applications: A comprehensive review on recent developments.

    Unknown

  • Modeling the effect of process parameters on the photocatalytic degradation of organic pollutants using artificial neural networks

    Bamidele Victor Ayodele;May Ali Alsaffar;Siti Indati Mustapa;Chin Kui Cheng

  • Effect of acidity on the formation of silica–chitosan hybrid materials and thermal conductive property

    Thongthai Witoon;Metta Chareonpanich;Jumras Limtrakul

  • Recent advances in light olefins production from catalytic hydrogenation of carbon dioxide

    Thanapha Numpilai;Chin Kui Cheng;Jumras Limtrakul;Thongthai Witoon

Frequent Co-Authors

Jumras Limtrakul
Jumras Limtrakul Vidyasirimedhi Institute of Science and Technology
Chin Kui Cheng
Chin Kui Cheng Khalifa University
Kajornsak Faungnawakij
Kajornsak Faungnawakij National Science and Technology Development Agency
Narong Chanlek
Narong Chanlek Synchrotron Light Research Institute
Jun-Wei Lim
Jun-Wei Lim Universiti Teknologi Petronas
Dai-Viet N. Vo
Dai-Viet N. Vo Universiti Malaysia Pahang
Joon Ching Juan
Joon Ching Juan University of Malaya
Arivalagan Pugazhendhi
Arivalagan Pugazhendhi Cape Breton University
A.E. Atabani
A.E. Atabani Yuan Ze University

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