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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 61 9413 8525 49 44 119 11010

Simo O. Pehkonen publications per year

The chart shows the history of publications by Simo O. Pehkonen between 1992 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Simo O. Pehkonen published across 34 years, from 1992 to 2025, averaging 3.6 papers a year. Output peaked at 12 publications in 2007. 1 of the 122 publications appeared in the last two years.

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

122 publications in total across all disciplines

View publications per year as a table
Simo O. Pehkonen: publications per year, 1992 to 2025
Year Publications
1992 1
1993 2
1994 3
1995 4
1996 0
1997 1
1998 6
1999 3
2000 3
2001 0
2002 4
2003 2
2004 9
2005 7
2006 6
2007 12
2008 7
2009 4
2010 2
2011 3
2012 5
2013 5
2014 4
2015 3
2016 6
2017 4
2018 10
2019 2
2020 3
2021 0
2022 0
2023 0
2024 0
2025 1
Total 122
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Simo O. Pehkonen publications per year - data summary

  • Simo O. Pehkonen, a Chemistry scholar from University of Eastern Finland, has 122 publications recorded across 34 years, from 1992 to 2025.
  • The oldest publication on record dates to 1992 and the most recent to 2025.
  • The most productive year is 2007, with 12 publications.
  • The least productive years with any output are 1992, 1997 and 2025, with 1 publication each.
  • 6 of the 34 years in the span carry no publications at all (1996, 2001, 2021, 2022 and others).
  • The rate of publication averages 3.6 papers per year over the whole span, or 4.4 per year counting only the 28 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 1 publication, <1% of the career total.
  • Split into equal eras - 1992-2003: 29 publications (2.4 per year); 2004-2015: 67 publications (5.6 per year); 2016-2025: 26 publications (2.6 per year).
  • Comparing the opening and closing eras, the overall trend of publication is broadly steady.

Simo O. Pehkonen 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 Simo O. Pehkonen 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, 101–120 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: 119 publications — 5th percentile

5% 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
101–120 623 119
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
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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Simo O. Pehkonen publication distribution in Chemistry in 2026 - data summary

  • The chart plots the publication count of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 63 ranges running from 61–80 to 1,295+ publications.
  • Simo O. Pehkonen, a Chemistry scholar from University of Eastern Finland, records 119 publications - the 5th percentile of the discipline.
  • 5% of ranked Chemistry scientists score the same or lower than Simo O. Pehkonen, and about 95% score higher.
  • The median of the discipline falls in the 241–260 publications range, and Simo O. Pehkonen ranks below the median.
  • The most crowded range is 161–180 publications, holding 1,350 scientists (8% of the field).
  • 77% of the field sits in the lowest quarter of the value range (up to 361–380 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 1,295 publications or more, 100 scientists in all (<1% of the field).

Simo O. Pehkonen 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 Simo O. Pehkonen 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, 60–61 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: 61 D-Index — 49th percentile

49% 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 61
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
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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Simo O. Pehkonen D-index placement in Chemistry in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 61 ranges running from 40–41 to 159+ D-Index.
  • Simo O. Pehkonen, a Chemistry scholar from University of Eastern Finland, records 61 D-Index - the 49th percentile of the discipline.
  • 49% of ranked Chemistry scientists score the same or lower than Simo O. Pehkonen, and about 51% score higher.
  • The median of the discipline falls in the 62–63 D-Index range, and Simo O. Pehkonen ranks below the median.
  • The most crowded range is 56–57 D-Index, holding 1,051 scientists (6% of the field).
  • 70% of the field sits in the lowest quarter of the value range (up to 70–71 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 159 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Simo O. Pehkonen is affiliated with the University of Eastern Finland in Finland. Their research activity spans multiple interconnected fields within Agricultural and Biological Sciences. The scientist's work focuses on topics such as arsenic contamination and mitigation, advanced photocatalysis techniques, carbon and quantum dots applications, and various botanical and ecological studies including lichen, fungal, and bryophyte ecology.

Their recent publications include detailed investigations in materials chemistry and environmental monitoring. One of their papers from 2020 is titled A magnetic γ-Fe2O3@PANI@TiO2 core-shell nanocomposite for arsenic removal via a coupled visible-light-induced photocatalytic oxidation-adsorption process, published in Nanoscale Advances. Another 2020 work, Information gain in environmental monitoring through bioindi-cation and biomonitoring methods ("B & B technologies") and phytoremediation processes - with special reference to the Biological System of Chemical Elements (BSCE) under specific consideration, appeared in Bioactive Compounds in Health and Disease - Online ISSN 2574-0334 Print ISSN 2769-2426.

The scientist collaborates frequently with other researchers including Yuan Wang, Ping Zhang, Tian C. Zhang, Gang Xiang, and Xin-Long Wang. These collaborations reflect an interdisciplinary approach combining chemistry, environmental science, and biological studies.

Simo O. Pehkonen's publication record shows contributions primarily in the following venues:

  • Nanoscale Advances
  • Bioactive Compounds in Health and Disease - Online ISSN 2574-0334 Print ISSN 2769-2426

The major fields and subfields of study associated with their work are:

  • Agricultural and Biological Sciences
  • Ecology, Evolution, Behavior and Systematics
  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Materials Chemistry
  • Plant Science

Key research topics examined by Simo O. Pehkonen include:

  • Arsenic contamination and mitigation
  • Advanced Photocatalysis Techniques
  • Carbon and Quantum Dots Applications
  • Lichen and fungal ecology
  • Botany and Plant Ecology Studies
  • Bryophyte Studies and Records

Best Publications

  • The chemistry of atmospheric mercury: a review

    Che-Jen Lin;Simo O. Pehkonen

  • Photocatalytic oxidation of arsenic(III): evidence of hydroxyl radicals.

    Paritam K. Dutta;S. O. Pehkonen;Virender K. Sharma;Ajay K. Ray

  • Peracids in water treatment : a critical review

    Tero Luukkonen;Simo O. Pehkonen

  • Removal of Aqueous Cr(VI) by a Combination of Photocatalytic Reduction and Coprecipitation

    Xiaoling Wang;S. O. Pehkonen;Ajay K. Ray

  • Microbiologically influenced corrosion of 304 stainless steel by aerobic Pseudomonas NCIMB 2021 bacteria: AFM and XPS study

    S.J. Yuan;S.O. Pehkonen

  • The influence of sulphate-reducing bacteria biofilm on the corrosion of stainless steel AISI 316

    Xiaoxia Sheng;Yen-Peng Ting;Simo Olavi Pehkonen

  • The Degradation of Organophosphorus Pesticides in Natural Waters: A Critical Review

    Simo O. Pehkonen;Qi Zhang

  • Scientific uncertainties in atmospheric mercury models I: Model science evaluation

    Che-Jen Lin;Pruek Pongprueksa;Steve E. Lindberg;Steve E. Lindberg;Simo O. Pehkonen

  • Surface characterization and corrosion behavior of 70/30 Cu-Ni alloy in pristine and sulfide-containing simulated seawater

    S.J. Yuan;S.O. Pehkonen

  • Lysozyme-coupled poly(poly(ethylene glycol) methacrylate)-stainless steel hybrids and their antifouling and antibacterial surfaces.

    Shaojun Yuan;Dong Wan;Bin Liang;S. O. Pehkonen

  • Superhydrophobic CuO nanoneedle-covered copper surfaces for anticorrosion

    Feng Xiao;Shaojun Yuan;Bin Liang;Guanqiu Li

  • Photoreduction of iron oxyhydroxides in the presence of important atmospheric organic compounds

    Simo O. Pehkonen;Ron Siefert;Yigal Erel;Sam Webb

  • Surface chemistry and corrosion behaviour of 304 stainless steel in simulated seawater containing inorganic sulphide and sulphate-reducing bacteria

    Shaojun Yuan;Bin Liang;Yu Zhao;S.O. Pehkonen

  • Superhydrophobic fluoropolymer-modified copper surface via surface graft polymerisation for corrosion protection

    Shaojun Yuan;S.O. Pehkonen;Bin Liang;Y.P. Ting

  • The influence of ionic strength, nutrients and pH on bacterial adhesion to metals

    Xiaoxia Sheng;Yen Peng Ting;Simo Olavi Pehkonen

  • Photocatalytic inactivation of Gram-positive and Gram-negative bacteria using fluorescent light

    Amrita Pal;Simo O. Pehkonen;Liya E. Yu;Madhumita B. Ray

  • Redox chemistry of iron in fog and stratus clouds

    Yigal Erel;Simo O. Pehkonen;Michael R. Hoffmann

  • Green synthesis of nanoparticles for the remediation of contaminated waters and soils: Constituents, synthesizing methods, and influencing factors

    Yinan Wang;David O'Connor;Zhengtao Shen;Irene M.C. Lo

  • Photocatalytic reduction of Hg(II) on two commercial TiO2 catalysts

    Xiaoling Wang;S.O. Pehkonen;Ajay K. Ray

  • The influence of the marine aerobic Pseudomonas strain on the corrosion of 70/30 Cu-Ni alloy

    S.J. Yuan;Amy M.F. Choong;S.O. Pehkonen

  • Advanced Oxidation Processes

    M. B. Ray;J. Paul Chen;Lawrence K. Wang;Simo Olavi Pehkonen

Frequent Co-Authors

Shaojun Yuan
Shaojun Yuan Sichuan University
Bin Liang
Bin Liang Sichuan University
Yen-Peng Ting
Yen-Peng Ting National University of Singapore
Che-Jen Lin
Che-Jen Lin Lamar University
Madhumita B. Ray
Madhumita B. Ray University of Western Ontario
En-Tang Kang
En-Tang Kang National University of Singapore
Michael R. Hoffmann
Michael R. Hoffmann California Institute of Technology
Koon Gee Neoh
Koon Gee Neoh National University of Singapore
Steve E. Lindberg
Steve E. Lindberg Oak Ridge National Laboratory
Yigal Erel
Yigal Erel Hebrew University of Jerusalem

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