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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 44 16642 15024 4 4 122 12498

Maan Hayyan publications per year

The chart shows the history of publications by Maan Hayyan between 1970 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Maan Hayyan published across 57 years, from 1970 to 2026, averaging 2.3 papers a year. Output peaked at 14 publications in 2015. 10 of the 131 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1970 to 2026. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 2015. 1970: 1 publication 1971: 0 publications 1972: 0 publications 1973: 0 publications 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: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 0 publications 2001: 0 publications 2002: 0 publications 2003: 0 publications 2004: 0 publications 2005: 0 publications 2006: 0 publications 2007: 0 publications 2008: 0 publications 2009: 1 publication 2010: 6 publications 2011: 3 publications 2012: 9 publications 2013: 9 publications 2014: 6 publications 2015: 14 publications 2016: 11 publications 2017: 12 publications 2018: 1 publication 2019: 6 publications 2020: 6 publications 2021: 6 publications 2022: 7 publications 2023: 13 publications 2024: 10 publications 2025: 8 publications 2026: 2 publications
1970 2026

131 publications in total across all disciplines

View publications per year as a table
Maan Hayyan: publications per year, 1970 to 2026
Year Publications
1970 1
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 0
1992 0
1993 0
1994 0
1995 0
1996 0
1997 0
1998 0
1999 0
2000 0
2001 0
2002 0
2003 0
2004 0
2005 0
2006 0
2007 0
2008 0
2009 1
2010 6
2011 3
2012 9
2013 9
2014 6
2015 14
2016 11
2017 12
2018 1
2019 6
2020 6
2021 6
2022 7
2023 13
2024 10
2025 8
2026 2
Total 131
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Maan Hayyan 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 Maan Hayyan 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, 121–140 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: 122 publications — 6th percentile

6% 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
121–140 918 122
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
1,141–1,160 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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Maan Hayyan 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 Maan Hayyan 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, 44–45 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: 44 D-Index — 7th percentile

7% 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 44
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
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

Maan Hayyan is a researcher primarily affiliated with A'Sharqiyah University in Oman. Their work spans multiple intersecting fields within chemical engineering, engineering, and chemistry. The scientist's main research focus involves the study and application of ionic liquids and deep eutectic solvents, reflected in numerous publications and collaborations.

The scientist's contributions include research on deep eutectic solvents, encompassing topics such as their physicochemical properties, biodegradability, and integration with biomass processing. Recent publications include:

  • Hydrophobic deep eutectic solvents: Current progress and future directions, 2021, Journal of Industrial and Engineering Chemistry
  • A grand avenue to integrate deep eutectic solvents into biomass processing, 2020, Biomass and Bioenergy
  • Doxorubicin Loading on Functional Graphene as a Promising Nanocarrier Using Ternary Deep Eutectic Solvent Systems, 2020, ACS Omega
  • Are deep eutectic solvents biodegradable?, 2023, Process Safety and Environmental Protection
  • A comprehensive review on the physicochemical properties of deep eutectic solvents, 2024, Results in Chemistry

Maan Hayyan frequently collaborates with several co-authors, including Wan Jefrey Basirun, Amal A.M. Elgharbawy, Sharifah Shahira Syed Putra, Adeeb Hayyan, and Mohd Ali Hashim. These collaborations contribute to a range of scientific outputs across various aspects of chemical engineering and related disciplines.

Key publication venues where their work often appears are:

  • Journal of Molecular Liquids
  • Process Safety and Environmental Protection
  • Journal of Industrial and Engineering Chemistry
  • Renewable and Sustainable Energy Reviews
  • Journal of Food Measurement & Characterization

Hayyan's research covers multiple subfields, notably catalysis, organic chemistry, biomedical engineering, electrical and electronic engineering, and mechanical engineering. Their expertise in catalysis is reflected in a significant number of publications, alongside contributions in biomedical engineering and advanced techniques in electrical and mechanical engineering.

The main topics of their scientific work include:

  • Ionic liquids properties and applications
  • Electrochemical analysis and applications
  • Extraction and separation processes
  • Innovative microfluidic and catalytic techniques innovation
  • Advanced battery technologies research
  • Electrochemical sensors and biosensors
  • Enzyme catalysis and immobilization

The breadth of Maan Hayyan's research reflects a multidisciplinary approach involving chemistry, engineering principles, and practical applications in emerging solvent systems and catalytic processes. The scientist remains active in academic publishing and continues contributing to evolving fields related to sustainable and functional chemical technologies.

Best Publications

  • Superoxide Ion: Generation and Chemical Implications

    Maan Hayyan;Mohd Ali Hashim;Inas M. AlNashef

  • Are deep eutectic solvents benign or toxic

    Maan Hayyan;Mohd Ali Hashim;Adeeb Hayyan;Mohammed A. Al-Saadi

  • New horizons in the extraction of bioactive compounds using deep eutectic solvents: A review.

    Mohamad Hamdi Zainal-Abidin;Maan Hayyan;Adeeb Hayyan;Natesan Subramanian Jayakumar

  • Potential applications of deep eutectic solvents in nanotechnology

    Ali Abo-Hamad;Maan Hayyan;Mohammed AbdulHakim AlSaadi;Mohd Ali Hashim

  • Applications of deep eutectic solvents in biotechnology and bioengineering-Promises and challenges.

    Yves Paul Mbous;Maan Hayyan;Adeeb Hayyan;Won Fen Wong

  • Glycerol-based deep eutectic solvents: Physical properties

    Mohamed Khalid Alomar;Maan Hayyan;Mohammed Abdulhakim Alsaadi;Shatirah Mohamed Akib

  • Environmental application of nanotechnology: air, soil, and water

    Rusul Khaleel Ibrahim;Maan Hayyan;Mohammed Abdulhakim AlSaadi;Adeeb Hayyan

  • A novel technique for separating glycerine from palm oil-based biodiesel using ionic liquids

    Maan Hayyan;Farouq S. Mjalli;Mohd Ali Hashim;Inas M. AlNashef

  • Investigating the electrochemical windows of ionic liquids

    Maan Hayyan;Farouq S. Mjalli;Mohd Ali Hashim;Inas M. AlNashef

  • The role of ionic liquids in desulfurization of fuels: A review

    Muna Hassan Ibrahim;Maan Hayyan;Mohd Ali Hashim;Adeeb Hayyan

  • Assessment of cytotoxicity and toxicity for phosphonium-based deep eutectic solvents.

    Maan Hayyan;Mohd. Ali Hashim;Mohammed A. Al-Saadi;Adeeb Hayyan

  • In Vitro and In Vivo toxicity profiling of ammonium-based deep eutectic solvents.

    Maan Hayyan;Chung Yeng Looi;Adeeb Hayyan;Won Fen Wong

  • Physical properties of ethylene glycol-based deep eutectic solvents

    Rusul Khaleel Ibrahim;Maan Hayyan;Maan Hayyan;Mohammed Abdulhakim AlSaadi;Mohammed Abdulhakim AlSaadi;Shaliza Ibrahim

  • Natural deep eutectic solvents: cytotoxic profile

    Maan Hayyan;Yves Paul Mbous;Chung Yeng Looi;Won Fen Wong

  • Evaluation of toxicity and biodegradability for cholinium-based deep eutectic solvents

    Ibrahim Juneidi;Maan Hayyan;Mohd Ali Hashim

  • Functionalization of graphene using deep eutectic solvents

    Maan Hayyan;Ali Abo-Hamad;Mohammed AbdulHakim AlSaadi;Mohd Ali Hashim

  • Emerging frontiers of deep eutectic solvents in drug discovery and drug delivery systems.

    Mohamad Hamdi Zainal-Abidin;Maan Hayyan;Gek Cheng Ngoh;Won Fen Wong

  • Ionic Liquid-Carbon Nanomaterial Hybrids for Electrochemical Sensor Applications: a Review

    Ali Abo-Hamad;Mohammed AbdulHakim AlSaadi;Maan Hayyan;Ibrahim Juneidi

  • Toxicity profile of choline chloride-based deep eutectic solvents for fungi and Cyprinus carpio fish.

    Ibrahim Juneidi;Maan Hayyan;Ozair Mohd Ali

  • A new processing route for cleaner production of biodiesel fuel using a choline chloride based deep eutectic solvent

    Adeeb Hayyan;Mohd Ali Hashim;Maan Hayyan;Farouq S. Mjalli

  • A novel phosphonium-based deep eutectic catalyst for biodiesel production from industrial low grade crude palm oil

    Adeeb Hayyan;Mohd Ali Hashim;Farouq S. Mjalli;Maan Hayyan

Frequent Co-Authors

Mohd Ali Hashim
Mohd Ali Hashim University of Malaya
Inas M. AlNashef
Inas M. AlNashef Khalifa University
Farouq S. Mjalli
Farouq S. Mjalli Sultan Qaboos University
Wan Jefrey Basirun
Wan Jefrey Basirun University of Malaya
Yatimah Alias
Yatimah Alias University of Malaya
Mohamed Kheireddine Aroua
Mohamed Kheireddine Aroua Sunway University
Shaliza Ibrahim
Shaliza Ibrahim University of Malaya
Yahya Al-Wahaibi
Yahya Al-Wahaibi A’Sharqiyah Universit

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