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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 56 11568 10417 655 583 209 11895

Robert Raja publications per year

The chart shows the history of publications by Robert Raja between 1996 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert Raja published across 30 years, from 1996 to 2025, averaging 7.8 papers a year. Output peaked at 16 publications in 2001. 14 of the 235 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1996 to 2025. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2001. 1996: 2 publications 1997: 4 publications 1998: 3 publications 1999: 9 publications 2000: 7 publications 2001: 16 publications 2002: 5 publications 2003: 12 publications 2004: 10 publications 2005: 13 publications 2006: 6 publications 2007: 5 publications 2008: 5 publications 2009: 6 publications 2010: 6 publications 2011: 3 publications 2012: 4 publications 2013: 7 publications 2014: 6 publications 2015: 8 publications 2016: 11 publications 2017: 11 publications 2018: 14 publications 2019: 12 publications 2020: 11 publications 2021: 10 publications 2022: 4 publications 2023: 11 publications 2024: 9 publications 2025: 5 publications
1996 2025

235 publications in total across all disciplines

View publications per year as a table
Robert Raja: publications per year, 1996 to 2025
Year Publications
1996 2
1997 4
1998 3
1999 9
2000 7
2001 16
2002 5
2003 12
2004 10
2005 13
2006 6
2007 5
2008 5
2009 6
2010 6
2011 3
2012 4
2013 7
2014 6
2015 8
2016 11
2017 11
2018 14
2019 12
2020 11
2021 10
2022 4
2023 11
2024 9
2025 5
Total 235
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Robert Raja 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 Robert Raja 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: 209 publications — 36th percentile

36% 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 1,281 209
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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Robert Raja 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 Robert Raja 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, 56–57 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: 56 D-Index — 36th percentile

36% 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 56
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

Robert Raja is affiliated with the University of Southampton in the United Kingdom. Their research primarily spans the fields of Materials Science, Engineering, and Chemistry, with a focus on subfields such as Materials Chemistry, Inorganic Chemistry, Renewable Energy, Sustainability and the Environment, Catalysis, and Computational Mechanics.

The scientist's main topics of work include:

  • Zeolite Catalysis and Synthesis
  • Advanced Photocatalysis Techniques
  • Metal-Organic Frameworks: Synthesis and Applications
  • Catalytic Processes in Materials Science
  • Catalysis and Oxidation Reactions
  • Heat and Mass Transfer in Porous Media
  • Mesoporous Materials and Catalysis

Robert Raja has contributed to several research articles published in various journals. Among the notable recent papers are:

  • Functionalized mesoporous SBA-15 silica: recent trends and catalytic applications, 2020, Nanoscale
  • Design and application of photocatalysts using porous materials, 2021, Catalysis Reviews
  • Cobalt-containing zeolitic imidazole frameworks for C-H activation using visible-light redox photocatalysis, 2020, Catalysis Science & Technology
  • Plasmonic nanocatalysts for visible-NIR light induced hydrogen generation from storage materials, 2020, Materials Advances
  • Recent Advances in Photocatalytic CO2 Utilisation Over Multifunctional Metal-Organic Frameworks, 2020, Catalysts

The frequent coauthors collaborating with Robert Raja include Matthew E. Potter, Lindsay-Marie Armstrong, Priyanka Verma, Stylianos Kyrimis, and Marina Carravetta.

Several publication venues have featured their research multiple times. The most common journals are:

  • Catalysis Science & Technology
  • Catalysts
  • Chemistry - A European Journal
  • Advanced Powder Technology
  • Chemical Communications

Best Publications

  • Single-site heterogeneous catalysts.

    John Meurig Thomas;John Meurig Thomas;Robert Raja;Dewi W. Lewis

  • High-Performance Nanocatalysts for Single-Step Hydrogenations

    John Meurig Thomas;Brian F. G. Johnson;Robert Raja;Gopinathan Sankar

  • Molecular-sieve catalysts for the selective oxidation of linear alkanes by molecular oxygen

    John Meurig Thomas;Robert Raja;Gopinathan Sankar;Robert G. Bell

  • Molecular sieve catalysts for the regioselective and shape- selective oxyfunctionalization of alkanes in air.

    John Meurig Thomas;Robert Raja;Gopinathan Sankar;Robert G. Bell

  • Exploiting nanospace for asymmetric catalysis: confinement of immobilized, single-site chiral catalysts enhances enantioselectivity.

    John Meurig Thomas;Robert Raja

  • Functionalized mesoporous SBA-15 silica: recent trends and catalytic applications

    Priyanka Verma;Priyanka Verma;Yasutaka Kuwahara;Yasutaka Kuwahara;Yasutaka Kuwahara;Kohsuke Mori;Kohsuke Mori;Robert Raja

  • Powerful redox molecular sieve catalysts for the selective oxidation of cyclohexane in air

    Robert Raja;Gopinathan Sankar;John Meurig Thomas

  • Designing a Heterogeneous Catalyst for the Production of Adipic Acid by Aerial Oxidation of Cyclohexane

    Markus Dugal;Gopinathan Sankar;Robert Raja;John Meurig Thomas

  • Catalytically active centres in porous oxides: designand performance of highly selective new catalysts

    John Meurig Thomas;Robert Raja

  • Solvent-free, low-temperature, selective hydrogenation of polyenes using a bimetallic nanoparticle Ru-Sn catalyst

    Sophie Hermans;Robert Raja;John M. Thomas;Brian F. G. Johnson

  • Enhancing the enantioselectivity of novel homogeneous organometallic hydrogenation catalysts

    Matthew D. Jones;Robert Raja;John Meurig Thomas;Brian F. G. Johnson

  • Constraining asymmetric organometallic catalysts within mesoporous supports boosts their enantioselectivity.

    Robert Raja;John Meurig Thomas;Matthew D. Jones;Brian F.G. Johnson

  • Nanotechnology in catalysis

    Bing Zhou;Sophie Hermans;Gabor A. Somorjai;Scott Han

  • Single-step, highly active, and highly selective nanoparticle catalysts for the hydrogenation of key organic compounds

    Robert Raja;Tetyana Khimyak;John Meurig Thomas;Sophie Hermans

  • Design of a green one-step catalytic production of e-caprolactam (precursor of nylon-6)

    John Meurig Thomas;Robert Raja

  • Single‐Step Conversion of Dimethyl Terephthalate into Cyclohexanedimethanol with Ru5PtSn, a Trimetallic Nanoparticle Catalyst

    Ana B. Hungria;Robert Raja;Richard D. Adams;Burjor Captain

  • Catalytic significance of organometallic compounds immobilized on mesoporous silica: economically and environmentally important examples

    John Meurig Thomas;John Meurig Thomas;Robert Raja

  • A one-step, enantioselective reduction of ethyl nicotinate to ethyl nipecotinate using a constrained, chiral, heterogeneous catalyst

    Stuart A. Raynor;John Meurig Thomas;Robert Raja;Brian F. G. Johnson

  • Preparation, Characterisation and Performance of Encapsulated Copper–Ruthenium Bimetallic Catalysts Derived from Molecular Cluster Carbonyl Precursors

    Douglas S. Shephard;Thomas Maschmeyer;Gopinathan Sankar;John Meurig Thomas

  • Mechanistic Insights into the Conversion of Cyclohexene to Adipic Acid by H2O2 in the Presence of a TAPO‐5 Catalyst

    Sang-Ok Lee;Robert Raja;Kenneth D. M. Harris;John Meurig Thomas

Frequent Co-Authors

John Meurig Thomas
John Meurig Thomas University of Cambridge
Gopinathan Sankar
Gopinathan Sankar University College London
Brian F. G. Johnson
Brian F. G. Johnson University of Cambridge
Robert G. Bell
Robert G. Bell University College London
T. S. Andy Hor
T. S. Andy Hor National University of Singapore
Paul Ratnasamy
Paul Ratnasamy University of Louisville
Matthew D. Jones
Matthew D. Jones Neuroscience Research Australia
Paul A. Midgley
Paul A. Midgley University of Cambridge
Andrew R. Baden
Andrew R. Baden University of Maryland, College Park
A. P. Heinson
A. P. Heinson University of California, Riverside

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