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Claus J. Nielsen

Claus J. Nielsen

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 54 12446 11201 33 26 597 16151

Claus J. Nielsen publications per year

The chart shows the history of publications by Claus J. Nielsen between 1972 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Claus J. Nielsen published across 55 years, from 1972 to 2026, averaging 12.1 papers a year. Output peaked at 78 publications in 1978. 3 of the 665 publications appeared in the last two years.

No. of publications
25 50 75
Bar chart. Horizontal axis: year, 1972 to 2026. Vertical axis: number of publications, 0 to 78. Peak 78 publications in 1978. 1972: 1 publication 1973: 0 publications 1974: 1 publication 1975: 4 publications 1976: 1 publication 1977: 2 publications 1978: 78 publications 1979: 2 publications 1980: 7 publications 1981: 4 publications 1982: 51 publications 1983: 4 publications 1984: 2 publications 1985: 2 publications 1986: 27 publications 1987: 12 publications 1988: 58 publications 1989: 7 publications 1990: 8 publications 1991: 8 publications 1992: 20 publications 1993: 18 publications 1994: 16 publications 1995: 25 publications 1996: 9 publications 1997: 17 publications 1998: 19 publications 1999: 19 publications 2000: 15 publications 2001: 17 publications 2002: 14 publications 2003: 20 publications 2004: 21 publications 2005: 26 publications 2006: 11 publications 2007: 15 publications 2008: 12 publications 2009: 6 publications 2010: 11 publications 2011: 7 publications 2012: 8 publications 2013: 9 publications 2014: 7 publications 2015: 7 publications 2016: 6 publications 2017: 6 publications 2018: 3 publications 2019: 3 publications 2020: 4 publications 2021: 3 publications 2022: 5 publications 2023: 2 publications 2024: 2 publications 2025: 2 publications 2026: 1 publication
1972 2026

665 publications in total across all disciplines

View publications per year as a table
Claus J. Nielsen: publications per year, 1972 to 2026
Year Publications
1972 1
1973 0
1974 1
1975 4
1976 1
1977 2
1978 78
1979 2
1980 7
1981 4
1982 51
1983 4
1984 2
1985 2
1986 27
1987 12
1988 58
1989 7
1990 8
1991 8
1992 20
1993 18
1994 16
1995 25
1996 9
1997 17
1998 19
1999 19
2000 15
2001 17
2002 14
2003 20
2004 21
2005 26
2006 11
2007 15
2008 12
2009 6
2010 11
2011 7
2012 8
2013 9
2014 7
2015 7
2016 6
2017 6
2018 3
2019 3
2020 4
2021 3
2022 5
2023 2
2024 2
2025 2
2026 1
Total 665
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Claus J. Nielsen 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 Claus J. Nielsen 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, 581–600 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: 597 publications — 93rd percentile

93% 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
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
581–600 132 597
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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Claus J. Nielsen 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 Claus J. Nielsen 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, 54–55 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: 54 D-Index — 31st percentile

31% 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 54
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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Overview

Claus J. Nielsen is affiliated with the University of Oslo in Norway and conducts research primarily within Earth and Planetary Sciences. Their scholarly contributions focus on Atmospheric Science, with additional work in Spectroscopy, Mechanical Engineering, Materials Chemistry, and Global and Planetary Change.

The main topics addressed in Nielsen's research include:

  • Atmospheric chemistry and aerosols
  • Atmospheric Ozone and Climate
  • Spectroscopy and Laser Applications
  • Catalytic Processes in Materials Science
  • Atmospheric and Environmental Gas Dynamics
  • Carbon Dioxide Capture Technologies
  • Refrigeration and Air Conditioning Technologies

Their research output is published in various scientific venues, most frequently appearing in:

  • The Journal of Physical Chemistry A
  • Reviews of Geophysics
  • International Journal of Greenhouse Gas Control
  • Atmospheric Chemistry and Physics
  • ACS Earth and Space Chemistry

Among recent publications, notable papers include:

  • Updated Global Warming Potentials and Radiative Efficiencies of Halocarbons and Other Weak Atmospheric Absorbers (2020, Reviews of Geophysics)
  • Performance of an amine-based CO2 capture pilot plant at the Fortum Oslo Varme Waste to Energy plant in Oslo, Norway (2021, International Journal of Greenhouse Gas Control)
  • Measurement report: Emission factors of NH 3 and NH x for wildfires and agricultural fires in the United States (2023, Atmospheric Chemistry and Physics)
  • Experimental and Theoretical Study of the OH-Initiated Degradation of Piperazine under Simulated Atmospheric Conditions (2020, The Journal of Physical Chemistry A)
  • Atmospheric Chemistry of N-Methylmethanimine (CH3NCH2): A Theoretical and Experimental Study (2022, The Journal of Physical Chemistry A)

Nielsen frequently coauthors research with several scientists, including:

  • Tomáš Mikoviny
  • Armin Wisthaler
  • Liang Zhu
  • Simen Antonsen
  • Yngve Stenstrøm

Best Publications

  • Organic aerosol and global climate modelling: a review

    M. Kanakidou;J. H. Seinfeld;S. N. Pandis;I. Barnes

  • Global warming potentials and radiative efficiencies of halocarbons and related compounds: a comprehensive review

    Ø. Hodnebrog;M. Etminan;J. S. Fuglestvedt;G. Marston

  • The 2015 edition of the GEISA spectroscopic database

    N. Jacquinet-Husson;Raymond Armante;N.A. Scott;A. Chédin

  • Atmospheric chemistry and environmental impact of the use of amines in carbon capture and storage (CCS)

    Claus J. Nielsen;Hartmut Herrmann;Christian Weller

  • Molecular structure and internal motion of formamide from microwave spectrum

    Eizi Hirota;Ryoka Sugisaki;Claus Jørgen Nielsen;Georg Ole Sørensen

  • Synthesis of Triazenopyrazole Derivativesas Potential Inhibitors of HIV-1

    Janus S. Larsen;Magdy A. Zahran;Erik B. Pedersen;Claus Nielsen

  • Spectroscopic Study of Aqueous H2SO4 at Different Temperatures and Compositions: Variations in Dissociation and Optical Properties

    Cathrine E. Lund Myhre;Daniel H. Christensen;Flemming M. Nicolaisen;Claus J. Nielsen

  • ON THE COORDINATION AROUND MERCURY(II), CADMIUM(II) AND ZINC(II) IN DIMETHYL SULFOXIDE AND AQUEOUS SOLUTIONS. AN X-RAY DIFFRACTION, RAMAN AND INFRARED INVESTIGATION

    Magnus Sandström;Ingmar Persson;Sten Ahrland;J. C. Sekutowski

  • Updated global warming potentials and radiative efficiencies of halocarbons and other weak atmospheric absorbers

    Øivind Hodnebrog;Borgar Aamaas;Jan S. Fuglestvedt;G. Marston

  • Correlation between carbohydrate structures on the envelope glycoprotein gp120 of HIV-1 and HIV-2 and syncytium inhibition with lectins.

    Hansen Je;Nielsen Cm;Nielsen C;Heegaard P

  • Spectra and structure of silicon‐containing compounds. XXXVI—Raman and infrared spectra, conformational stability, ab initio calculations and vibrational assignment of ethyldibromosilane

    Gamil A. Guirgis;Peter Klaboe;Shiyu Shen;David L. Powell

  • Kinetic study of gas‐phase reactions of pinonaldehyde and structurally related compounds

    M. Glasius;A. Calogirou;N. R. Jensen;J. Hjorth

  • Optical properties in the UV and visible spectral region of organic acids relevant to tropospheric aerosols

    C. E. Lund Myhre;C. J. Nielsen

  • The Preparation, Separation, and Characterization of the lel3- and ob3-Isomers of Tris(trans-1,2-cyclohexanediamine)iridium(III) Complexes.

    F. Galsbøl;C. J. Nielsen;R. Suchi;O. Vikane

  • Atmospheric Chemistry of (CF3)2CF–C≡N: A Replacement Compound for the Most Potent Industrial Greenhouse Gas, SF6

    Mads P. Sulbaek Andersen;Mads P. Sulbaek Andersen;Mildrid Kyte;Simone Thirstrup Andersen;Claus J. Nielsen

  • Kinetic study of OH and NO3 radical reactions with 14 aliphatic aldehydes

    Barbara D'Anna;Øyvind Andresen;Ziv Gefen;Claus J. Nielsen

  • Atmospheric degradation and global warming potentials of three perfluoroalkenes

    G. Acerboni;J.A. Beukes;N.R. Jensen;J. Hjorth

  • Experimental and theoretical studies of gas phase NO3 and OH radical reactions with formaldehyde, acetaldehyde and their isotopomers

    Barbara D'Anna;Vebjørn Bakken;Jon Are Beukes;Claus J. Nielsen

  • Deuteration of Crystalline Hydroxides. Hydrogen Bonds of gamma-AlOO(H,D) and gamma-FeOO(H,D).

    A. Nørlund Christensen;M. S. Lehmann;P. Convert;Lothar Beyer

  • Atmospheric Chemistry of Hydrofluoroethers: Reaction of a Series of Hydrofluoroethers with OH Radicals and Cl Atoms, Atmospheric Lifetimes, and Global Warming Potentials

    Nathan Oyaro;Stig R Sellevåg;Claus J Nielsen

  • Density and Surface Tension of Aqueous H2SO4 at Low Temperature

    Cathrine E. L. Myhre;Claus J. Nielsen;Ole W. Saastad

Frequent Co-Authors

Erik B. Pedersen
Erik B. Pedersen University of Southern Denmark
Armin Wisthaler
Armin Wisthaler University of Oslo
Barbara D'Anna
Barbara D'Anna Aix-Marseille University
James E. Boggs
James E. Boggs The University of Texas at Austin
Mika Salminen
Mika Salminen Finnish Institute for Health and Welfare
Jan Gerstoft
Jan Gerstoft Rigshospitalet
Tomas Mikoviny
Tomas Mikoviny University of Oslo
J. R. Durig
J. R. Durig University of Missouri–Kansas City
Anne-Mieke Vandamme
Anne-Mieke Vandamme Rega Institute for Medical Research
Claudia Balotta
Claudia Balotta University of Milan

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