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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 75 4481 4071 115 111 263 18677

J. Theo Kloprogge publications per year

The chart shows the history of publications by J. Theo Kloprogge between 1990 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. J. Theo Kloprogge published across 36 years, from 1990 to 2025, averaging 8.1 papers a year. Output peaked at 35 publications in 1999. 2 of the 292 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1990 to 2025. Vertical axis: number of publications, 0 to 35. Peak 35 publications in 1999. 1990: 1 publication 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 1 publication 1995: 2 publications 1996: 2 publications 1997: 0 publications 1998: 11 publications 1999: 35 publications 2000: 31 publications 2001: 30 publications 2002: 35 publications 2003: 22 publications 2004: 16 publications 2005: 23 publications 2006: 21 publications 2007: 4 publications 2008: 1 publication 2009: 1 publication 2010: 0 publications 2011: 0 publications 2012: 0 publications 2013: 0 publications 2014: 0 publications 2015: 4 publications 2016: 2 publications 2017: 9 publications 2018: 7 publications 2019: 1 publication 2020: 7 publications 2021: 11 publications 2022: 2 publications 2023: 11 publications 2024: 0 publications 2025: 2 publications
1990 2025

292 publications in total across all disciplines

View publications per year as a table
J. Theo Kloprogge: publications per year, 1990 to 2025
Year Publications
1990 1
1991 0
1992 0
1993 0
1994 1
1995 2
1996 2
1997 0
1998 11
1999 35
2000 31
2001 30
2002 35
2003 22
2004 16
2005 23
2006 21
2007 4
2008 1
2009 1
2010 0
2011 0
2012 0
2013 0
2014 0
2015 4
2016 2
2017 9
2018 7
2019 1
2020 7
2021 11
2022 2
2023 11
2024 0
2025 2
Total 292
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J. Theo Kloprogge 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 J. Theo Kloprogge 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, 261–280 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: 263 publications — 53rd percentile

53% 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
261–280 979 263
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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J. Theo Kloprogge 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 J. Theo Kloprogge 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, 74–75 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: 75 D-Index — 76th percentile

76% 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
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501 75
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

J. Theo Kloprogge is affiliated with the University of Queensland in Australia and has a research focus primarily within the fields of Materials Science, Chemistry, and Earth and Planetary Sciences. Their work spans various subfields including Materials Chemistry, Biomaterials, Inorganic Chemistry, Geochemistry and Petrology, and Electronic, Optical and Magnetic Materials.

The research topics covered by Kloprogge include:

  • Clay minerals and soil interactions
  • Mineralogy and Gemology Studies
  • Mesoporous Materials and Catalysis
  • Crystal Structures and Properties
  • Layered Double Hydroxides Synthesis and Applications
  • Origins and Evolution of Life
  • Polyoxometalates: Synthesis and Applications

Kloprogge has published in a range of scientific journals, with frequent publication venues including:

  • Preprints.org
  • Life
  • Materials
  • Applied Sciences
  • Minerals

Recent papers by Kloprogge include:

  • "Clays and the Origin of Life: The Experiments", 2022, Life
  • "X-ray Photoelectron Spectroscopic Study of Some Organic and Inorganic Modified Clay Minerals", 2021, Materials
  • "Spectroscopic Studies of Synthetic and Natural Saponites: A Review", 2021, Minerals
  • "X-Ray Photoelectron Spectroscopy (XPS) Study of Layered Double Hydroxides with Different Exchangeable Anions", 2025, Applied Sciences

Collaborations have been an element of Kloprogge's research, with frequent co-authors including Concepcion P. Ponce, Barry Wood, Tom A. Loomis, Danilo Ortillo, and Hyman Hartman. These partnerships reflect ongoing work in their research areas, often contributing to shared topics and publications.

Best Publications

  • Porous Materials for Oil Spill Cleanup: A Review of Synthesis and Absorbing Properties

    M.O. Adebajo;R.L. Frost;J.T. Kloprogge;O. Carmody

  • Infrared and Raman study of interlayer anions CO32–, NO3–, SO42– and ClO4– in Mg/Al-hydrotalcite

    J. Theo Kloprogge;David Wharton;Leisel Hickey;Ray L. Frost

  • XPS study of the major minerals in bauxite: gibbsite, bayerite and (pseudo-)boehmite.

    J. Theo Kloprogge;Loc V. Duong;Barry J. Wood;Ray L. Frost

  • Fourier Transform Infrared and Raman Spectroscopic Study of the Local Structure of Mg-, Ni-, and Co-Hydrotalcites

    J.Theo Kloprogge;Ray L. Frost

  • FT‐Raman and FT‐IR spectroscopic study of synthetic Mg/Zn/Al‐hydrotalcites

    J. Theo Kloprogge;Leisel Hickey;Ray L. Frost

  • Synthesis of smectite clay minerals; a critical review

    J. Theo Kloprogge;Sridhar Komarneni;James E. Amonette

  • Changes in the morphology of organoclays with HDTMA+ surfactant loading

    Hongping He;Hongping He;Ray L. Frost;Thor Bostrom;Peng Yuan

  • THERMAL DECOMPOSITION OF BAUXITE MINERALS: INFRARED EMISSION SPECTROSCOPY OF GIBBSITE, BOEHMITE AND DIASPORE

    Jacob Kloprogge;Huada Ruan;Raymond Frost

  • Infrared emission spectroscopic study of brucite

    Ray L Frost;J.Theo Kloprogge

  • Near-infrared and mid-infrared spectroscopic study of sepiolites and palygorskites

    Ray L. Frost;Oliver B. Locos;Huada Ruan;J.Theo Kloprogge

  • Comparison of Raman spectra in characterizing gibbsite, bayerite, diaspore and boehmite

    Huada Ruan;Raymond Frost;Jacob Kloprogge

  • Modification of Wyoming Montmorillonite Surfaces Using a Cationic Surfactant

    Yunfei Xi;Ray L. Frost;Hongping He;J. Theo Kloprogge

  • Infrared spectroscopy of goethite dehydroxylation: III. FT-IR microscopy of in situ study of the thermal transformation of goethite to hematite

    Huada Ruan;Raymond Frost;Jacob Kloprogge;Loc Duong

  • Raman and infrared spectroscopic study of the vivianite-group phosphates vivianite, baricite and bobierrite

    Ray L Frost;Wayde Neil Martens;Peter A Williams;J. T. Kloprogge

  • The effects of synthesis pH and hydrothermal treatment on the formation of zinc aluminum hydrotalcites

    J. Theo Kloprogge;Leisel Hickey;Ray L. Frost

  • Raman spectroscopic study of azurite and malachite at 298 and 77 K

    Raymond Frost;Wayde Martens;Llewellyn Rintoul;Emir Mahmutagic

  • The behavior of hydroxyl units of synthetic goethite and its dehydroxylated product hematite.

    Huada Ruan;Raymond Frost;Jacob Kloprogge

  • Raman spectroscopy of the basic copper chloride minerals atacamite and paratacamite: implications for the study of copper, brass and bronze objects of archaeological significance

    Ray L. Frost;Wayde N. Martens;J. Theo Kloprogge;Peter A. Williams

  • The effects of various hydrothermal treatments on magnesium-aluminium hydrotalcites

    L. Hickey;J. T. Kloprogge;R. L. Frost

  • Infrared emission spectroscopic study of the thermal transformation of Mg-, Ni- and Co-hydrotalcite catalysts

    J. Theo Kloprogge;Ray L. Frost

  • Mechanochemical Treatment of Kaolinite.

    Ray L. Frost;Éva Makó;János Kristóf;Erzsébet Horváth

Frequent Co-Authors

Ray L. Frost
Ray L. Frost Queensland University of Technology
Wayde N. Martens
Wayde N. Martens Queensland University of Technology
Janos Kristof
Janos Kristof University of Pannonia
Hongping He
Hongping He Chinese Academy of Sciences
Serge Kokot
Serge Kokot Queensland University of Technology
Yunfei Xi
Yunfei Xi Queensland University of Technology
Peng Yuan
Peng Yuan Chinese Academy of Sciences
Vicente Rives
Vicente Rives University of Salamanca
Howell G. M. Edwards
Howell G. M. Edwards University of Bradford
Kazumichi Yanagisawa
Kazumichi Yanagisawa Kōchi University

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