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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 64 8179 7424 466 421 299 12164

Rafael Kandiyoti publications per year

The chart shows the history of publications by Rafael Kandiyoti between 1969 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Rafael Kandiyoti published across 53 years, from 1969 to 2021, averaging 6 papers a year. Output peaked at 20 publications in 2008. 4 of the 319 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1969 to 2021. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2008. 1969: 1 publication 1970: 0 publications 1971: 0 publications 1972: 2 publications 1973: 1 publication 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 1 publication 1985: 1 publication 1986: 1 publication 1987: 8 publications 1988: 5 publications 1989: 6 publications 1990: 5 publications 1991: 9 publications 1992: 0 publications 1993: 14 publications 1994: 14 publications 1995: 12 publications 1996: 9 publications 1997: 10 publications 1998: 13 publications 1999: 16 publications 2000: 14 publications 2001: 16 publications 2002: 18 publications 2003: 14 publications 2004: 18 publications 2005: 16 publications 2006: 15 publications 2007: 13 publications 2008: 20 publications 2009: 8 publications 2010: 5 publications 2011: 2 publications 2012: 2 publications 2013: 3 publications 2014: 3 publications 2015: 9 publications 2016: 0 publications 2017: 9 publications 2018: 1 publication 2019: 1 publication 2020: 0 publications 2021: 4 publications
1969 2021

319 publications in total across all disciplines

View publications per year as a table
Rafael Kandiyoti: publications per year, 1969 to 2021
Year Publications
1969 1
1970 0
1971 0
1972 2
1973 1
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 1
1985 1
1986 1
1987 8
1988 5
1989 6
1990 5
1991 9
1992 0
1993 14
1994 14
1995 12
1996 9
1997 10
1998 13
1999 16
2000 14
2001 16
2002 18
2003 14
2004 18
2005 16
2006 15
2007 13
2008 20
2009 8
2010 5
2011 2
2012 2
2013 3
2014 3
2015 9
2016 0
2017 9
2018 1
2019 1
2020 0
2021 4
Total 319
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Rafael Kandiyoti 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 Rafael Kandiyoti 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, 281–300 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: 299 publications — 63rd percentile

63% 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
281–300 939 299
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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Rafael Kandiyoti 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 Rafael Kandiyoti 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, 64–65 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: 64 D-Index — 56th percentile

56% 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 64
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

Rafael Kandiyoti is affiliated with Imperial College London in the United Kingdom. Their research contributions focus primarily on engineering, with a significant emphasis on biomedical engineering as well as renewable energy, sustainability, and environmental topics. Additional areas of study include inorganic chemistry and mechanics of materials.

The scientist's work covers several main topics including thermochemical biomass conversion processes, biofuel production and bioconversion, biodiesel production and applications, global energy and sustainability research, subcritical and supercritical water processes, zeolite catalysis and synthesis, and lignin and wood chemistry.

Recent publications by Rafael Kandiyoti include:

  • Liquid biofuels from food crops in transportation - A balance sheet of outcomes, 2021, Chemical Engineering Science X
  • Oxidative cracking of three to five-member ring polycyclic aromatic hydrocarbons in subcritical and supercritical water, 2020, The Journal of Supercritical Fluids
  • Identifying Synergistic Effects between Biomass Components during Pyrolysis and Pointers Concerning Experiment Design, 2021, ACS Sustainable Chemistry & Engineering

Frequent co-authors collaborating with Kandiyoti include Meredith Rose Barr, Roberto Volpe, Ahmad Rafizan Mohamad Daud, C. Berrueco, and Klaus Hellgardt.

The main venues where Kandiyoti's work appears are Chemical Engineering Science X, The Journal of Supercritical Fluids, and ACS Sustainable Chemistry & Engineering.

Best Publications

  • Co-pyrolysis and co-gasification of coal and biomass in bench-scale fixed-bed and fluidised bed reactors

    A.-G Collot;Y Zhuo;D.R Dugwell;R Kandiyoti

  • Combustion reactivity and morphological change in coal chars: Effect of pyrolysis temperature, heating rate and pressure

    H.-Y. Cai;A.J. Güell;I.N. Chatzakis;J.-Y. Lim

  • Characterization of Heavy Hydrocarbons by Chromatographic and Mass Spectrometric Methods: An Overview

    Alan A. Herod;and Keith D. Bartle;Rafael Kandiyoti

  • Characterization of Asphaltenes from Hydrotreated Products by SEC, LDMS, MALDI, NMR, and XRD

    F. Trejo;J. Ancheyta;T. J. Morgan;and A. A. Herod

  • Coal pyrolysis yields from fast and slow heating in a wire-mesh apparatus with a gas sweep

    Jon Gibbins-Matham;Rafael Kandiyoti

  • Secondary reactions of flash pyrolysis tars measured in a fluidized bed pyrolysis reactor with some novel design features

    Hugh N. Stiles;Rafael Kandiyoti

  • A two-stage fixed-bed reactor for direct hydrotreatment of volatiles from the hydropyrolysis of biomass: effect of catalyst temperature, pressure and catalyst ageing time on product characteristics

    R.V Pindoria;A Megaritis;A.A Herod;R Kandiyoti

  • UV-Fluorescence Spectroscopy of Coal Pyrolysis Tars

    Chun-Zhu Li;Fan Wu;Hai-Yong Cai;Rafael Kandiyoti

  • Characterization of tars from variable heating rate pyrolysis of maceral concentrates

    Chun-Zhu Li;Keith D. Bartle;Rafael Kandiyoti

  • Determination of 17 trace elements in coal and ash reference materials by ICP-MS applied to milligram sample sizes

    H. Lachas;R. Richaud;A. A. Herod;D. R. Dugwell

  • Variable‐heating‐rate wire‐mesh pyrolysis apparatus

    J. R. Gibbins;R. A. V. King;R. J. Wood;R. Kandiyoti

  • Secondary char formation in the catalytic pyrolysis of biomass

    Claudio A. Zaror;Ian S. Hutchings;D.Leo Pyle;Hugh N. Stiles

  • Solubility limitations in the determination of molecular mass distributions of coal liquefaction and hydrocracking products : 1-methyl-2-pyrrolidinone as mobile phase in size exclusion chromatography

    Alan A. Herod;Sheng-Fu Zhang;Barry R. Johnson;and Keith D. Bartle

  • Structural characterization of biomass pyrolysis tars/oils from eucalyptus wood waste : effect of H2 pressure and sample configuration

    Ramesh V. Pindoria;Jin-Yee Lim;Janet E. Hawkes;Maria-Jesus Lazaro

  • CO2 and steam-gasification in a high-pressure wire-mesh reactor: the reactivity of Daw Mill coal and combustion reactivity of its chars

    R.C Messenböck;D.R Dugwell;R Kandiyoti

  • Characterization of biomass pyrolysis tars produced in the relative absence of extraparticle secondary reactions

    Ana-Rita Fraga;Alec F. Gaines;Rafael Kandiyoti

  • Heteroatom distribution in pyrolysis products as a function of heating rate and pressure

    H.-Y. Cai;A.J. Güell;D.R. Dugwell;R. Kandiyoti

  • Vacuum pyrolysis of maceral concentrates in a wire-mesh reactor

    Chun-Zhu Li;Keith D. Bartle;Rafael Kandiyoti

  • Two-Stage Kinetic Model of Primary Coal Liquefaction

    Bin Xu† and;Rafael Kandiyoti

  • The effect of variations in time-temperature history on product distribution from coal pyrolysis

    Jon R. Gibbins;Rafael Kandiyoti

  • Fractionation by planar chromatography of a coal tar pitch for characterisation by size-exclusion chromatography, UV fluorescence and direct-probe mass spectrometry

    Alan A. Herod;Rafael Kandiyoti

Frequent Co-Authors

Alan A. Herod
Alan A. Herod Imperial College London
Marcos Millan
Marcos Millan King Fahd University of Petroleum and Minerals
Isabel Suelves
Isabel Suelves Spanish National Research Council
M.J. Lázaro
M.J. Lázaro Spanish National Research Council
Keith D. Bartle
Keith D. Bartle University of Leeds
Chun-Zhu Li
Chun-Zhu Li Curtin University
Paul S. Fennell
Paul S. Fennell Imperial College London
Rosa Menéndez
Rosa Menéndez Spanish National Research Council
Marcos Granda
Marcos Granda Spanish National Research Council
Ricardo Santamaría
Ricardo Santamaría Edwards Lifescience

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