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Chemistry
USA
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 145 163 146 78 63 1123 85397

Rajender S. Varma publications per year

The chart shows the history of publications by Rajender S. Varma between 1951 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Rajender S. Varma published across 76 years, from 1951 to 2026, averaging 17.4 papers a year. Output peaked at 131 publications in 2022. 32 of the 1,324 publications appeared in the last two years.

No. of publications
25 50 75 100 125
Bar chart. Horizontal axis: year, 1951 to 2026. Vertical axis: number of publications, 0 to 131. Peak 131 publications in 2022. 1951: 1 publication 1952: 1 publication 1953: 0 publications 1954: 0 publications 1955: 0 publications 1956: 0 publications 1957: 0 publications 1958: 0 publications 1959: 0 publications 1960: 0 publications 1961: 0 publications 1962: 3 publications 1963: 1 publication 1964: 0 publications 1965: 0 publications 1966: 2 publications 1967: 6 publications 1968: 5 publications 1969: 2 publications 1970: 6 publications 1971: 1 publication 1972: 4 publications 1973: 8 publications 1974: 9 publications 1975: 6 publications 1976: 9 publications 1977: 5 publications 1978: 5 publications 1979: 10 publications 1980: 12 publications 1981: 19 publications 1982: 13 publications 1983: 12 publications 1984: 6 publications 1985: 32 publications 1986: 20 publications 1987: 10 publications 1988: 9 publications 1989: 5 publications 1990: 9 publications 1991: 4 publications 1992: 8 publications 1993: 15 publications 1994: 4 publications 1995: 1 publication 1996: 1 publication 1997: 30 publications 1998: 29 publications 1999: 40 publications 2000: 5 publications 2001: 10 publications 2002: 23 publications 2003: 6 publications 2004: 13 publications 2005: 14 publications 2006: 17 publications 2007: 21 publications 2008: 34 publications 2009: 33 publications 2010: 29 publications 2011: 16 publications 2012: 38 publications 2013: 40 publications 2014: 30 publications 2015: 23 publications 2016: 38 publications 2017: 19 publications 2018: 22 publications 2019: 60 publications 2020: 77 publications 2021: 106 publications 2022: 131 publications 2023: 75 publications 2024: 49 publications 2025: 28 publications 2026: 4 publications
1951 2026

1,324 publications in total across all disciplines

View publications per year as a table
Rajender S. Varma: publications per year, 1951 to 2026
Year Publications
1951 1
1952 1
1953 0
1954 0
1955 0
1956 0
1957 0
1958 0
1959 0
1960 0
1961 0
1962 3
1963 1
1964 0
1965 0
1966 2
1967 6
1968 5
1969 2
1970 6
1971 1
1972 4
1973 8
1974 9
1975 6
1976 9
1977 5
1978 5
1979 10
1980 12
1981 19
1982 13
1983 12
1984 6
1985 32
1986 20
1987 10
1988 9
1989 5
1990 9
1991 4
1992 8
1993 15
1994 4
1995 1
1996 1
1997 30
1998 29
1999 40
2000 5
2001 10
2002 23
2003 6
2004 13
2005 14
2006 17
2007 21
2008 34
2009 33
2010 29
2011 16
2012 38
2013 40
2014 30
2015 23
2016 38
2017 19
2018 22
2019 60
2020 77
2021 106
2022 131
2023 75
2024 49
2025 28
2026 4
Total 1,324
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Rajender S. Varma 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 Rajender S. Varma 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, 1,121–1,140 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: 1,123 publications — 99th percentile

99% 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
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 1,123
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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Rajender S. Varma 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 Rajender S. Varma 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, 144–145 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: 145 D-Index — 99th percentile

99% 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
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 15 145
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

  • 2026 - Research.com Chemistry in United States Leader Award
  • 2025 - Research.com Chemistry in United States Leader Award

Overview

Rajender S. Varma is affiliated with the Environmental Protection Agency in the United States. Their research is situated at the intersection of materials science, chemistry, and engineering, with a substantial body of work spanning several disciplines and subfields.

The primary fields of study that characterize their research include:

  • Materials Science
  • Chemistry
  • Engineering

Within these areas, Varma's work captures key subfields such as:

  • Materials Chemistry
  • Organic Chemistry
  • Biomedical Engineering
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

The topics explored in their publications reveal a focus on nanomaterials and catalytic systems. Notable research themes include:

  • Advanced Photocatalysis Techniques
  • Nanomaterials for catalytic reactions
  • Nanoparticles: synthesis and applications
  • Graphene and Nanomaterials Applications
  • MXene and MAX Phase Materials
  • Metal-Organic Frameworks: Synthesis and Applications
  • Advanced Nanomaterials in Catalysis

Rajender S. Varma has frequently collaborated with several researchers, including:

  • Siavash Iravani
  • Mohammadreza Shokouhimehr
  • Ho Won Jang
  • Navid Rabiee
  • Pooyan Makvandi

Their research has been published extensively in multiple scientific journals. Prominent venues with high publication counts include:

  • Green Chemistry
  • Chemosphere
  • Molecular Catalysis
  • RSC Advances
  • Nanomaterials

Selected recent papers authored or co-authored by Varma include:

  • Starch, cellulose, pectin, gum, alginate, chitin and chitosan derived (nano)materials for sustainable water treatment: A review (2020), Carbohydrate Polymers
  • Green synthesis, biomedical and biotechnological applications of carbon and graphene quantum dots. A review (2020), Environmental Chemistry Letters
  • RETRACTED: Liposomes: Structure, Biomedical Applications, and Stability Parameters With Emphasis on Cholesterol (2021), Frontiers in Bioengineering and Biotechnology
  • Green-synthesized nanocatalysts and nanomaterials for water treatment: Current challenges and future perspectives (2020), Journal of Hazardous Materials
  • Greener synthesis of lignin nanoparticles and their applications (2020), Green Chemistry

Best Publications

  • Cu and Cu-Based Nanoparticles: Synthesis and Applications in Catalysis.

    Manoj B. Gawande;Anandarup Goswami;François Xavier Felpin;Tewodros Asefa

  • Solvent-free organic syntheses. using supported reagents and microwave irradiation

    Rajender S. Varma

  • Nano-magnetite (Fe3O4) as a support for recyclable catalysts in the development of sustainable methodologies

    Manoj B. Gawande;Paula S. Branco;Rajender S. Varma

  • Green chemistry by nano-catalysis

    Vivek Polshettiwar;Rajender S. Varma

  • Core–shell nanoparticles: synthesis and applications in catalysis and electrocatalysis

    Manoj B. Gawande;Anandarup Goswami;Tewodros Asefa;Huizhang Guo

  • OPTICAL METHOD AND APPARATUS FOR DETECTING MOLECULE

    Hollis Mark A;Ehrlich Daniel J;Murphy Allen R;Kosicki Bernard B

  • Selectivity Enhancement in Heterogeneous Photocatalytic Transformations.

    Jiahui Kou;Chunhua Lu;Jian Wang;Yukai Chen

  • Microwave-assisted organic synthesis and transformations using benign reaction media.

    Vivek Polshettiwar;Rajender S Varma

  • Green synthesis of silver and palladium nanoparticles at room temperature using coffee and tea extract

    Mallikarjuna N. Nadagouda;Rajender S. Varma

  • Microwave-Assisted Chemistry: Synthetic Applications for Rapid Assembly of Nanomaterials and Organics

    Manoj B. Gawande;Sharad N. Shelke;Radek Zboril;Rajender S. Varma

  • Magnetic Silica-Supported Ruthenium Nanoparticles: An Efficient Catalyst for Transfer Hydrogenation of Carbonyl Compounds

    R. B. Nasir Baig;Rajender S. Varma

  • Clay and clay-supported reagents in organic synthesis

    Rajender S. Varma

  • Benign by design: catalyst-free in-water, on-water green chemical methodologies in organic synthesis

    Manoj B. Gawande;Vasco D. B. Bonifácio;Rafael Luque;Paula S. Branco

  • Magnetically retrievable catalysts for organic synthesis

    R. B. Nasir Baig;Rajender S. Varma

  • Degradation of bromothymol blue by ‘greener’ nano-scale zero-valent iron synthesized using tea polyphenols

    George E. Hoag;John B. Collins;Jennifer L. Holcomb;Jessica R. Hoag

  • Liposomes: Structure, Biomedical Applications, and Stability Parameters With Emphasis on Cholesterol

    Unknown

  • Alternative energy input: mechanochemical, microwave and ultrasound-assisted organic synthesis

    R. B. Nasir Baig;Rajender S. Varma

  • Microwave-assisted green synthesis of silver nanostructures.

    Mallikarjuna N. Nadagouda;Thomas F. Speth;Rajender S. Varma

  • Aqueous microwave chemistry: a clean and green synthetic tool for rapid drug discovery

    Vivek Polshettiwar;Rajender S. Varma

  • Green synthesis of metal nanoparticles: Biodegradable polymers and enzymes in stabilization and surface functionalization

    Jurate Virkutyte;Rajender S. Varma

Frequent Co-Authors

Manoj B. Gawande
Manoj B. Gawande Institute of Chemical Technology
Mallikarjuna N. Nadagouda
Mallikarjuna N. Nadagouda Environmental Protection Agency
Vivek Polshettiwar
Vivek Polshettiwar Tata Institute of Fundamental Research
Mohammadreza Shokouhimehr
Mohammadreza Shokouhimehr Seoul National University
Radek Zboril
Radek Zboril Palacký University, Olomouc
Mahmoud Nasrollahzadeh
Mahmoud Nasrollahzadeh University of Qom
Ho Won Jang
Ho Won Jang Seoul National University
Miroslav Černík
Miroslav Černík Technical University of Liberec
Christophe Len
Christophe Len PSL University
George W. Kabalka
George W. Kabalka University of Tennessee at Knoxville

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