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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 58 10626 9595 2932 2409 202 11817

James A. Ritter publications per year

The chart shows the history of publications by James A. Ritter between 1987 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. James A. Ritter published across 39 years, from 1987 to 2025, averaging 5.6 papers a year. Output peaked at 18 publications in 1999. 2 of the 218 publications appeared in the last two years.

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

218 publications in total across all disciplines

View publications per year as a table
James A. Ritter: publications per year, 1987 to 2025
Year Publications
1987 1
1988 0
1989 3
1990 3
1991 7
1992 5
1993 3
1994 0
1995 2
1996 5
1997 8
1998 16
1999 18
2000 12
2001 9
2002 10
2003 8
2004 8
2005 14
2006 11
2007 11
2008 7
2009 4
2010 7
2011 5
2012 4
2013 1
2014 0
2015 3
2016 5
2017 2
2018 6
2019 4
2020 4
2021 4
2022 2
2023 4
2024 1
2025 1
Total 218
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James A. Ritter publications per year - data summary

  • James A. Ritter, a Chemistry scholar from University of South Carolina, has 218 publications recorded across 39 years, from 1987 to 2025.
  • The oldest publication on record dates to 1987 and the most recent to 2025.
  • The most productive year is 1999, with 18 publications.
  • The least productive years with any output are 1987, 2013, 2024 and 2025, with 1 publication each.
  • 3 of the 39 years in the span carry no publications at all (1988, 1994 and 2014).
  • The rate of publication averages 5.6 papers per year over the whole span, or 6.1 per year counting only the 36 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 12 publications, 6% of the career total.
  • Split into equal eras - 1987-1999: 71 publications (5.5 per year); 2000-2012: 110 publications (8.5 per year); 2013-2025: 37 publications (2.8 per year).
  • Comparing the opening and closing eras, the overall trend of publication is declining.

James A. Ritter 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 James A. Ritter 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, 201–220 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: 202 publications — 33rd percentile

33% 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 1,281 202
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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James A. Ritter 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.
  • James A. Ritter, a Chemistry scholar from University of South Carolina, records 202 publications - the 33rd percentile of the discipline.
  • 33% of ranked Chemistry scientists score the same or lower than James A. Ritter, and about 67% score higher.
  • The median of the discipline falls in the 241–260 publications range, and James A. Ritter 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).

James A. Ritter 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 James A. Ritter 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, 58–59 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: 58 D-Index — 42nd percentile

42% 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 58
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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James A. Ritter 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.
  • James A. Ritter, a Chemistry scholar from University of South Carolina, records 58 D-Index - the 42nd percentile of the discipline.
  • 42% of ranked Chemistry scientists score the same or lower than James A. Ritter, and about 58% score higher.
  • The median of the discipline falls in the 62–63 D-Index range, and James A. Ritter 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).

Research.com Recognitions

  • 2012 - Fellow of the American Chemical Society

Overview

James A. Ritter is affiliated with the University of South Carolina in the United States. Their research primarily focuses on Engineering, with significant contributions in the subfields of Mechanical Engineering, Biomedical Engineering, Inorganic Chemistry, Statistical and Nonlinear Physics, and Global and Planetary Change.

Their work addresses several main topics, including:

  • Carbon Dioxide Capture Technologies
  • Phase Equilibria and Thermodynamics
  • Membrane Separation and Gas Transport
  • Zeolite Catalysis and Synthesis
  • Advanced Thermodynamics and Statistical Mechanics
  • Atmospheric and Environmental Gas Dynamics
  • Methane Hydrates and Related Phenomena

James A. Ritter has published papers in various scientific venues with notable frequency in:

  • Adsorption
  • Industrial & Engineering Chemistry Research
  • Langmuir
  • ACS Omega
  • Frontiers in Chemistry

Their recent papers include:

  • "A reference high-pressure CH4 adsorption isotherm for zeolite Y: results of an interlaboratory study" (2020, Adsorption)
  • "Kinetically Limited Linear Driving Force Model for Diffusion-Based Adsorptive Separations" (2022, Industrial & Engineering Chemistry Research)
  • "On the use of single, dual and three process langmuir models for binary gas mixtures that exhibit unique combinations of these processes" (2021, Adsorption)
  • "Equilibrium Theory Analysis of Pressure Equalization Steps in Pressure Swing Adsorption" (2021, Industrial & Engineering Chemistry Research)
  • "Theoretical Analysis of the Necessary and Sufficient Conditions for the Formation of Adsorption Azeotropes in Binary Gas Mixtures" (2021, Langmuir)

Frequent co-authors of James A. Ritter include:

  • Armin D. Ebner
  • Charles E. Holland
  • Sulaimon A. Adegunju
  • M. A. Nicholson
  • Pravin B. C. A. Amalraj

James A. Ritter was recognized as a Fellow of the American Chemical Society in 2012.

Best Publications

  • Preparation and Properties of Resorcinol–Formaldehyde Organic and Carbon Gels

    Shaheen A. Al-Muhtaseb;James A. Ritter

  • Characterization of Sol‐Gel‐Derived Cobalt Oxide Xerogels as Electrochemical Capacitors

    Chuan Lin;James A. Ritter;Branko N. Popov

  • Effect of synthesis pH on the structure of carbon xerogels

    C. Lin;J.A. Ritter

  • Determination of the Lithium Ion Diffusion Coefficient in Graphite

    Ping Yu;Branko N Popov;James A Ritter;Ralph E White

  • Examination of the Approximations Used in Determining the Isosteric Heat of Adsorption from the Clausius−Clapeyron Equation

    Huanhua Pan;James A. Ritter;Perla B. Balbuena

  • State-of-the-art Adsorption and Membrane Separation Processes for Carbon Dioxide Production from Carbon Dioxide Emitting Industries

    Armin D. Ebner;James A. Ritter

  • Application of high gradient magnetic separation principles to magnetic drug targeting

    James A Ritter;Armin D Ebner;Karen D Daniel;Krystle L Stewart

  • Correlation of Double‐Layer Capacitance with the Pore Structure of Sol‐Gel Derived Carbon Xerogels

    Chuan Lin;James A. Ritter;Branko N. Popov

  • State‐of‐the‐Art Adsorption and Membrane Separation Processes for Hydrogen Production in the Chemical and Petrochemical Industries

    James A. Ritter;Armin D. Ebner

  • Implementing a hydrogen economy

    James A Ritter;Armin D Ebner;Jun Wang;Ragaiy Zidan

  • In Situ FTIR Spectroscopic Analysis of Carbonate Transformations during Adsorption and Desorption of CO2 in K-Promoted HTlc

    Hai Du;Christopher T. Williams;Armin D. Ebner;James A. Ritter

  • Approximate Solutions for Galvanostatic Discharge of Spherical Particles I. Constant Diffusion Coefficient

    Venkat R. Subramanian;James A. Ritter;Ralph E. White

  • Adsorption of Cesium, Strontium, and Cobalt Ions on Magnetite and a Magnetite−Silica Composite

    Armin D. Ebner;James A. Ritter;James D. Navratil

  • Carbonization and activation of sol–gel derived carbon xerogels

    Chuan Lin;James A. Ritter

  • Development of carbon-metal oxide supercapacitors from sol-gel derived carbon-ruthenium xerogels

    Chuan Lin;James A. Ritter;Branko N. Popov

  • Suitability of a Solid Amine Sorbent for CO2 Capture by Pressure Swing Adsorption

    Armin D. Ebner;M. L. Gray;N. G. Chisholm;Q. T. Black

  • An extended Langmuir model for adsorption of gas mixtures on heterogeneous surfaces

    A. Kapoor;J. A. Ritter;Ralph T. Yang

  • Stripping PSA cycles for CO2 recovery from flue gas at high temperature using a hydrotalcite-like adsorbent

    Steven P. Reynolds;and Armin D. Ebner;James A. Ritter

  • Infrared spectroscopic study of sol–gel derived mixed-metal oxides

    Caroline M. Parler;James A. Ritter;Michael D. Amiridis

  • System and device for magnetic drug targeting with magnetic drug carrier particles

    James A. Ritter;Armin D. Ebner;Charles E. Holland

  • New Pressure Swing Adsorption Cycles for Carbon Dioxide Sequestration

    Steven P. Reynolds;Armin D. Ebner;James A. Ritter

Frequent Co-Authors

Branko N. Popov
Branko N. Popov University of South Carolina
Ralph E. White
Ralph E. White University of South Carolina
Ralph T. Yang
Ralph T. Yang University of Michigan–Ann Arbor
Gerardine G. Botte
Gerardine G. Botte Texas Tech University
Perla B. Balbuena
Perla B. Balbuena Texas A&M University
Stefano Brandani
Stefano Brandani University of Edinburgh
Matthias Thommes
Matthias Thommes University of Erlangen-Nuremberg
Motonobu Goto
Motonobu Goto Nagoya University
Bernhard M. Krooss
Bernhard M. Krooss RWTH Aachen University
Yi Huang
Yi Huang Bournemouth University

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