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Mara G. Freire

D-Index & Metrics

Chemistry

D-Index
91
Citations
26406
World Ranking
1995
National Ranking
15

Mara G. Freire 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 Mara G. Freire sits on this spectrum.

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 publications 1,295+

This scientist: 367 publications — 76th percentile

76% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Mara G. Freire 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 Mara G. Freire sits on this spectrum.

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 D-Index 159+

This scientist: 91 D-Index — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Mara G. Freire is affiliated with the University of Aveiro in Portugal and has contributed extensively to the field of Chemical Engineering. Their research spans over 105 publications focused primarily on topics related to catalysis, molecular biology, filtration and separation, biomedical engineering, and electrochemistry.

The scientist's work emphasizes several main topics, including:

  • Ionic liquids properties and applications
  • Chemical and Physical Properties in Aqueous Solutions
  • Electrochemical Analysis and Applications
  • Extraction and Separation Processes
  • Analytical chemistry methods development
  • Analytical Chemistry and Chromatography
  • Advanced biosensing and bioanalysis techniques

Notable recent publications by Mara G. Freire include:

  • "The Role of Ionic Liquids in the Pharmaceutical Field: An Overview of Relevant Applications" (2020), published in International Journal of Molecular Sciences
  • "Use of Ionic Liquids and Deep Eutectic Solvents in Polysaccharides Dissolution and Extraction Processes towards Sustainable Biomass Valorization" (2020), published in Molecules
  • "L-asparaginase production review: bioprocess design and biochemical characteristics" (2021), published in Applied Microbiology and Biotechnology
  • "Recent Strategies and Applications for l-Asparaginase Confinement" (2020), published in Molecules
  • "Insights into coacervative and dispersive liquid-phase microextraction strategies with hydrophilic media - A review" (2020), published in Analytica Chimica Acta

Mara G. Freire frequently co-authors with several researchers, including:

  • João A. P. Coutinho (57 collaborations)
  • Ana P. M. Tavares (52 collaborations)
  • Márcia C. Neves (40 collaborations)
  • Mafalda R. Almeida (27 collaborations)
  • Francisca A. e Silva (21 collaborations)

Their research appears prominently in a range of scientific journals, with multiple publications in:

  • Separation and Purification Technology (22 publications)
  • Molecules (9 publications)
  • ACS Sustainable Chemistry & Engineering (9 publications)
  • Green Chemistry (8 publications)
  • Journal of Molecular Liquids (7 publications)

The concentration of Mara G. Freire's work in chemical engineering, particularly regarding ionic liquids and their applications in diverse processes such as extraction, separation, and biosensing, reflects a multidisciplinary approach bridging chemistry, molecular biology, and engineering principles.

Best Publications

  • Ionic-Liquid-Mediated Extraction and Separation Processes for Bioactive Compounds: Past, Present, and Future Trends

    Sónia P. M. Ventura;Francisca A. e Silva;Maria V. Quental;Dibyendu Mondal

  • Aqueous biphasic systems: a boost brought about by using ionic liquids

    Mara G. Freire;Mara G. Freire;Ana Filipa M. Cláudio;João M. M. Araújo;João A. P. Coutinho

  • Hydrolysis of Tetrafluoroborate and Hexafluorophosphate Counter Ions in Imidazolium-Based Ionic Liquids†

    Mara G. Freire;Catarina M. S. S. Neves;Isabel M. Marrucho;João A. P. Coutinho

  • Surface tensions of imidazolium based ionic liquids: anion, cation, temperature and water effect.

    Mara G. Freire;Pedro J. Carvalho;Ana M. Fernandes;Isabel M. Marrucho

  • Surface tension of ionic liquids and ionic liquid solutions

    Mohammad Tariq;Mara G. Freire;Mara G. Freire;Benilde Saramago;João A. P. Coutinho

  • High-Pressure Densities and Derived Thermodynamic Properties of Imidazolium-Based Ionic Liquids

    Ramesh L. Gardas;Mara G. Freire;Pedro J. Carvalho;Isabel M. Marrucho

  • Mutual solubilities of water and hydrophobic ionic liquids

    Mara G. Freire;Catarina M. S. S. Neves;Pedro J. Carvalho;Ramesh L. Gardas

  • Ionic liquid solutions as extractive solvents for value-added compounds from biomass

    Helena Passos;Mara G. Freire;João A. P. Coutinho

  • An overview of the mutual solubilities of water-imidazolium-based ionic liquids systems

    Mara G. Freire;Luís M.N.B.F. Santos;Ana M. Fernandes;João A.P. Coutinho

  • Mutual Solubilities of Water and the [Cnmim][Tf2N] Hydrophobic Ionic Liquids

    Mara G. Freire;Pedro J. Carvalho;Ramesh L. Gardas;Isabel M. Marrucho

  • Thermophysical Characterization of Ionic Liquids Able To Dissolve Biomass

    Mara G. Freire;Ana Rita R. Teles;Marisa A. A. Rocha;Bernd Schröder

  • Evaluation of Anion Influence on the Formation and Extraction Capacity of Ionic-Liquid-Based Aqueous Biphasic Systems

    Sónia P. M. Ventura;Catarina M. S. S. Neves;Mara G. Freire;Isabel M. Marrucho

  • PρT Measurements of Imidazolium-Based Ionic Liquids

    Ramesh L. Gardas;Mara G. Freire;Pedro J. Carvalho;Isabel M. Marrucho

  • Surface Tensions for the 1-Alkyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide Ionic Liquids

    Pedro J. Carvalho;Mara G. Freire;Isabel M. Marrucho;António J. Queimada

  • Evaluation of cation-anion interaction strength in ionic liquids.

    Ana M. Fernandes;Marisa A. A. Rocha;Mara G. Freire;Isabel M. Marrucho

  • Densities and Derived Thermodynamic Properties of Imidazolium-, Pyridinium-, Pyrrolidinium-, and Piperidinium-Based Ionic Liquids

    Ramesh L. Gardas;Henrique F. Costa;Mara G. Freire;Pedro J. Carvalho

  • Extended scale for the hydrogen-bond basicity of ionic liquids

    Ana Filipa M. Cláudio;Lorna Swift;Jason P. Hallett;Tom Welton

  • Alkylimidazolium Based Ionic Liquids: Impact of Cation Symmetry on Their Nanoscale Structural Organization

    Marisa A. A. Rocha;Catarina M. S. S. Neves;Mara G. Freire;Olga Russina

  • High-performance extraction of alkaloids using aqueous two-phase systems with ionic liquids

    Mara G. Freire;Catarina M. S. S. Neves;Isabel M. Marrucho;José N. Canongia Lopes

  • Evaluation of cation influence on the formation and extraction capability of ionic-liquid-based aqueous biphasic systems.

    Unknown

  • Extraction of vanillin using ionic-liquid-based aqueous two-phase systems

    Ana Filipa M. Cláudio;Mara G. Freire;Carmen S.R. Freire;Armando J.D. Silvestre

Frequent Co-Authors

João A. P. Coutinho
João A. P. Coutinho University of Aveiro
Isabel M. Marrucho
Isabel M. Marrucho Instituto Superior Técnico
Luís M. N. B. F. Santos
Luís M. N. B. F. Santos University of Porto
Pedro J. Carvalho
Pedro J. Carvalho University of Aveiro
Sónia P. M. Ventura
Sónia P. M. Ventura University of Aveiro
Luís Paulo N. Rebelo
Luís Paulo N. Rebelo Universidade Nova de Lisboa
Armando J. D. Silvestre
Armando J. D. Silvestre University of Aveiro
José N. Canongia Lopes
José N. Canongia Lopes Instituto Superior Técnico
Carmen S.R. Freire
Carmen S.R. Freire University of Aveiro
Robin D. Rogers
Robin D. Rogers University of Alabama

External Links

Personal website of Mara G. Freire Google Scholar page

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Best Scientists Citing Mara G. Freire

João A. P. Coutinho

João A. P. Coutinho

University of Aveiro

Publications: 208

Urszula Domańska

Urszula Domańska

Warsaw University of Technology

Publications: 104

Isabel M. Marrucho

Isabel M. Marrucho

Instituto Superior Técnico

Publications: 84

Sónia P. M. Ventura

Sónia P. M. Ventura

University of Aveiro

Publications: 83

Ramesh L. Gardas

Ramesh L. Gardas

Indian Institute of Technology Madras

Publications: 74

Johan Jacquemin

Johan Jacquemin

François Rabelais University

Publications: 50

Suojiang Zhang

Suojiang Zhang

Chinese Academy of Sciences

Publications: 44

Luís Paulo N. Rebelo

Luís Paulo N. Rebelo

Universidade Nova de Lisboa

Publications: 43

Jianji Wang

Jianji Wang

Henan Normal University

Publications: 40

Christopher Hardacre

Christopher Hardacre

University of Manchester

Publications: 35

José N. Canongia Lopes

José N. Canongia Lopes

Instituto Superior Técnico

Publications: 34

Lourdes F. Vega

Lourdes F. Vega

Khalifa University

Publications: 33

Robin D. Rogers

Robin D. Rogers

University of Alabama

Publications: 32

Pau Loke Show

Pau Loke Show

UCSI University

Publications: 31

Luís M. N. B. F. Santos

Luís M. N. B. F. Santos

University of Porto

Publications: 30

Simão P. Pinho

Simão P. Pinho

Polytechnic Institute of Bragança

Publications: 29

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