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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 53 13052 11742 3443 2814 336 10354

Hilkka I. Kenttämaa publications per year

The chart shows the history of publications by Hilkka I. Kenttämaa between 1980 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hilkka I. Kenttämaa published across 47 years, from 1980 to 2026, averaging 7.7 papers a year. Output peaked at 20 publications in 2019. 14 of the 362 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1980 to 2026. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2019. 1980: 1 publication 1981: 0 publications 1982: 0 publications 1983: 4 publications 1984: 0 publications 1985: 4 publications 1986: 1 publication 1987: 1 publication 1988: 5 publications 1989: 3 publications 1990: 3 publications 1991: 3 publications 1992: 11 publications 1993: 7 publications 1994: 6 publications 1995: 5 publications 1996: 10 publications 1997: 5 publications 1998: 4 publications 1999: 9 publications 2000: 6 publications 2001: 7 publications 2002: 8 publications 2003: 6 publications 2004: 8 publications 2005: 10 publications 2006: 5 publications 2007: 9 publications 2008: 9 publications 2009: 7 publications 2010: 8 publications 2011: 9 publications 2012: 18 publications 2013: 14 publications 2014: 8 publications 2015: 12 publications 2016: 13 publications 2017: 11 publications 2018: 9 publications 2019: 20 publications 2020: 16 publications 2021: 16 publications 2022: 14 publications 2023: 15 publications 2024: 8 publications 2025: 12 publications 2026: 2 publications
1980 2026

362 publications in total across all disciplines

View publications per year as a table
Hilkka I. Kenttämaa: publications per year, 1980 to 2026
Year Publications
1980 1
1981 0
1982 0
1983 4
1984 0
1985 4
1986 1
1987 1
1988 5
1989 3
1990 3
1991 3
1992 11
1993 7
1994 6
1995 5
1996 10
1997 5
1998 4
1999 9
2000 6
2001 7
2002 8
2003 6
2004 8
2005 10
2006 5
2007 9
2008 9
2009 7
2010 8
2011 9
2012 18
2013 14
2014 8
2015 12
2016 13
2017 11
2018 9
2019 20
2020 16
2021 16
2022 14
2023 15
2024 8
2025 12
2026 2
Total 362
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Hilkka I. Kenttämaa 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 Hilkka I. Kenttämaa 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, 321–340 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: 336 publications — 70th percentile

70% 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
281–300 939
301–320 764
321–340 643 336
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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Hilkka I. Kenttämaa 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 Hilkka I. Kenttämaa 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, 52–53 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: 53 D-Index — 28th percentile

28% 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 53
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
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

  • 2016 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Hilkka I. Kenttämaa is affiliated with Purdue University West Lafayette in the United States. Their research primarily spans the fields of Chemistry and Engineering, with a significant focus on several specialized subfields including Spectroscopy, Organic Chemistry, Biomedical Engineering, Materials Chemistry, and Analytical Chemistry.

The scientist's scholarly output includes numerous publications in frequently targeted venues such as Analytical Chemistry, the Journal of the American Society for Mass Spectrometry, Energy & Fuels, The Journal of Organic Chemistry, and SSRN Electronic Journal. These publications reflect an active engagement with the scientific community in both fundamental and applied chemical research.

Key areas of study for Kenttämaa include Mass Spectrometry Techniques and Applications, Analytical Chemistry and Chromatography, Petroleum Processing and Analysis, Advanced Chemical Physics Studies, Lignin and Wood Chemistry, Heat Transfer and Supercritical Fluids, and Chemical Reactions and Mechanisms. These topics illustrate a broad yet focused research agenda that intersects analytical methodologies with applied chemical and engineering challenges.

Among recent papers authored or co-authored by Kenttämaa are the following:

  • Recent Developments in Machine Learning for Mass Spectrometry, 2024, ACS Measurement Science Au
  • A comprehensive review on co-pyrolysis of lignocellulosic biomass and polystyrene, 2024, Renewable and Sustainable Energy Reviews
  • Direct functionalization of C−H bonds by electrophilic anions, 2020, Proceedings of the National Academy of Sciences
  • Compositional analysis of organosolv poplar lignin by using high-performance liquid chromatography/high-resolution multi-stage tandem mass spectrometry, 2021, Green Chemistry
  • Fragmentation of Saturated Hydrocarbons upon Atmospheric Pressure Chemical Ionization Is Caused by Proton-Transfer Reactions, 2020, Analytical Chemistry

Frequent collaborators contributing to Kenttämaa's research include Kawthar Z. Alzarieni, Erlu Feng, Xin Ma, John J. Nash, and Gözdem Kılaz. These co-authorships indicate ongoing professional relationships and collaborative projects within the scientific community.

Honors received by the scientist include the Fellow of the American Association for the Advancement of Science (AAAS) awarded in 2016. This recognition aligns with Kenttämaa's professional standing within their field.

Best Publications

  • A synergistic biorefinery based on catalytic conversion of lignin prior to cellulose starting from lignocellulosic biomass

    Trenton Parsell;Sara Yohe;John Degenstein;Tiffany Jarrell

  • Ion-molecule reactions of distonic radical cations

    Krista M. Stirk;L. K. Marjatta Kiminkinen;Hilkka I. Kenttamaa

  • Cleavage and hydrodeoxygenation (HDO) of C–O bonds relevant to lignin conversion using Pd/Zn synergistic catalysis

    Trenton H. Parsell;Benjamin C. Owen;Ian Klein;Tiffany M. Jarrell

  • Internal energy distributions of isolated ions after activation by various methods

    Vicki H. Wysocki;Hilkka I. Kenttämaa;R.Graham Cooks

  • Total Utilization of Miscanthus Biomass, Lignin and Carbohydrates, Using Earth Abundant Nickel Catalyst

    Hao Luo;Ian M. Klein;Yuan Jiang;Hanyu Zhu

  • Internal energy distributions acquired through collisional activation at low and high energies

    Hilkka I. Kenttämaa;R.Graham Cooks

  • Mechanistic investigation of the Zn/Pd/C catalyzed cleavage and hydrodeoxygenation of lignin

    Ian Klein;Christopher Marcum;Hilkka Kenttämaa;Mahdi M. Abu-Omar

  • Analysis of Asphaltenes and Asphaltene Model Compounds by Laser-Induced Acoustic Desorption/Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

    David S. Pinkston;Penggao Duan;Vanessa A. Gallardo;Steven C. Habicht

  • High-Performance Liquid Chromatography/High-Resolution Multiple Stage Tandem Mass Spectrometry Using Negative-Ion-Mode Hydroxide-Doped Electrospray Ionization for the Characterization of Lignin Degradation Products

    Benjamin C. Owen;Laura J. Haupert;Tiffany M. Jarrell;Christopher L. Marcum

  • Molecular Structures of Asphaltenes Based on the Dissociation Reactions of Their Ions in Mass Spectrometry

    David Borton;David S. Pinkston;Matthew R. Hurt;Xiaoli Tan

  • The identification of distonic radical cations on the basis of a reaction with dimethyl disulfide

    Krista M. Stirk;Joseph C. Orlowski;Diane T. Leeck;H. I. Kenttamaa

  • Energy deposition in [Fe(CO)5]+˙ upon collision with a metal surface

    Michael J. DeKrey;Hilkka I. Kenttämaa;Vicki H. Wysocki;R. G. Cooks

  • Maleic acid and aluminum chloride catalyzed conversion of glucose to 5-(hydroxymethyl) furfural and levulinic acid in aqueous media

    Ximing Zhang;Priya Murria;Yuan Jiang;Weihua Xiao;Weihua Xiao

  • An Experimental and Computational Study of the Gas-Phase Structures of Five-Carbon Monosaccharides

    Leonard P. Guler;Ying-Qing Yu;Hilkka I. Kenttämaa

  • Characterization of organosolv switchgrass lignin by using high performance liquid chromatography/high resolution tandem mass spectrometry using hydroxide-doped negative-ion mode electrospray ionization

    Tiffany M. Jarrell;Christopher L. Marcum;Huaming Sheng;Benjamin C. Owen

  • Excitation and dissociation of isolated ions derived from polycyclic aromatic hydrocarbons

    Steven J. Pachuta;Hilkka I. Kenttamaa;Thomas M. Sack;Ronald L. Cerny

  • Charged Phenyl Radicals

    Kami K. Thoen;Rebecca L. Smith;Jaakko J. Nousiainen;and Eric D. Nelson

  • Tautomer characterization by energy resolved mass spectrometry. Dimethyl phosphite and dimethyl phosphonate ions

    Hilkka I. Kenttamaa;R. Graham Cooks

  • Long‐lived distonic radical cations

    Hilkka I. Kenttämaa

  • Recent Advances in Petroleum Analysis by Mass Spectrometry.

    Edouard Niyonsaba;Jeremy M. Manheim;Ravikiran Yerabolu;Hilkka I. Kenttämaa

  • Laser-Induced Acoustic Desorption/Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Petroleum Distillate Analysis

    Kenroy E. Crawford;J. Larry Campbell;Marc N. Fiddler;Penggao Duan

Frequent Co-Authors

Mahdi M. Abu-Omar
Mahdi M. Abu-Omar University of California, Santa Barbara
R. Graham Cooks
R. Graham Cooks Purdue University West Lafayette
Rakesh Agrawal
Rakesh Agrawal Purdue University West Lafayette
Christopher J. Petzold
Christopher J. Petzold Lawrence Berkeley National Laboratory
Fabio H. Ribeiro
Fabio H. Ribeiro Purdue University West Lafayette
W. Nicholas Delgass
W. Nicholas Delgass Purdue University West Lafayette
Vicki H. Wysocki
Vicki H. Wysocki The Ohio State University
Robert R. Squires
Robert R. Squires Purdue University West Lafayette
Christopher J. Cramer
Christopher J. Cramer UL Research Institutes
Nicholas C. Carpita
Nicholas C. Carpita Purdue University West Lafayette

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