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Research facility · São Paulo · Brazil

Instituto de Pesquisas Energéticas e Nucleares

In research, Instituto de Pesquisas Energéticas e Nucleares stands highest in Physical Sciences (#6,276 of 12,888 worldwide) and Engineering (#6,133 of 6,636 worldwide), 2022–2025. Relative to its size it is most specialised in Materials Chemistry — Materials Chemistry is 6.4× its share of world research.

ipen.br/portal_por/portal/default.phpROR OpenAlex
World rank, 2022–2025
#11,221
of 28,054 · #5,579 all time
Rank in Brazil
#171
of 714
Research works
2.7k
▲ 19% vs 2013–17
Citations
32k
12.1 per fractional work
Top-10% rate
6.3%
record average 16.5%
Open access
58%
world 28%

What is Instituto de Pesquisas Energéticas e Nucleares known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #6,276 of 12,888 6.4%218 #3318
EngineeringField #6,133 of 6,636 7.0%66 #4921

Each strip is that field’s whole ranked pool, with the notch where Instituto de Pesquisas Energéticas e Nucleares sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

What does Instituto de Pesquisas Energéticas e Nucleares specialise in?

Where its research is concentrated relative to its size: Materials Chemistry takes 6.4× the share of its output that it takes of world research.

  1. Materials ChemistrySubfield · 39.7 works6.4×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 1.18× its world share, 18 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.78× its world share, 13 worksBiochemistry, Geneti…Immunology and Microbiology: 0.69× its world share, 2 worksImmunology and Micro…Neuroscience: 0.10× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.64× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 3.75× its world share, 4 worksChemical EngineeringChemistry: 2.13× its world share, 11 worksChemistryComputer Science: 0.26× its world share, 6 worksComputer ScienceEarth and Planetary Sciences: 1.33× its world share, 7 worksEarth and Planetary …Energy: 3.35× its world share, 10 worksEnergyEngineering: 1.40× its world share, 66 worksEngineeringEnvironmental Science: 2.08× its world share, 33 worksEnvironmental ScienceMaterials Science: 5.23× its world share, 58 worksMaterials ScienceMathematics: 0.02× its world share, 0 worksMathematicsPhysics and Astronomy: 3.37× its world share, 24 worksPhysics and AstronomyDentistry: 2.63× its world share, 4 worksDentistryHealth Professions: 0.62× its world share, 5 worksHealth ProfessionsMedicine: 0.48× its world share, 29 worksMedicineNursing: 0.45× its world share, 1 worksNursingVeterinary: 0.52× its world share, 0 worksVeterinaryArts and Humanities: 0.73× its world share, 7 worksArts and HumanitiesBusiness, Management and Accounting: 0.16× its world share, 2 worksBusiness, Management…Decision Sciences: 1.12× its world share, 3 worksDecision SciencesEconomics, Econometrics and Finance: 0.11× its world share, 1 worksEconomics, Econometr…Psychology: 0.09× its world share, 1 worksPsychologySocial Sciences: 0.28× its world share, 11 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Materials Science, 5.2×. Every wedge is a field page.

Who are the top researchers at Instituto de Pesquisas Energéticas e Nucleares?

Ranked on the composite score, Estevam V. Spinacé, José Carlos Bressiani and Denise Maria Zezéll lead among researchers whose main affiliation is Instituto de Pesquisas Energéticas e Nucleares.

  1. 1 Estevam V. Spinacé Brazil · #148,125 worldwide 253 citations · 30 works
  2. 2 José Carlos Bressiani Brazil · #259,094 worldwide 149 citations · 29 works
  3. 3 Denise Maria Zezéll Brazil · #373,878 worldwide 142 citations · 80 works
  4. 4 Almir Oliveira Neto Brazil · #494,536 worldwide 167 citations · 38 works
  5. 5 R.F.B. De Souza Brazil · #570,546 worldwide 134 citations · 23 works
  6. 6 Wagner de Rossi Brazil · #578,948 worldwide 83 citations · 30 works
  7. 7 Marcelo Linardi Brazil · #760,385 worldwide 109 citations · 28 works
  8. 8 E.N.S. Muccillo Brazil · #777,967 worldwide 152 citations · 52 works
  9. 9 Delvonei Alves de Andrade Brazil · #792,855 worldwide 34 citations · 32 works
  10. 10 Nilson Dias Vieira Brazil · #809,269 worldwide 107 citations · 56 works
All ranked researchers at Instituto de Pesquisas Energéticas e Nucleares

Which keywords describe research at Instituto de Pesquisas Energéticas e Nucleares?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Raman Spectroscopy, Nanoparticles, Nanomaterials, Environmental Impact, Biomedical Applications, Food Safety, Catalysis and Consumer Acceptance.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Nanoparticles15▲ 3.7×24 topics
  2. Environmental Impact14▲ 2.7×21 topics
  3. Nanomaterials14▲ 4.1×14 topics
  4. Biomedical Applications13▲ 3.4×24 topics
  5. Raman Spectroscopy12▲ 20×6 topics
  6. Catalysis10▲ 4.8×14 topics
  7. Antioxidant Activity9▲ 4.5×10 topics
  8. Mechanical Properties9▲ 2.8×18 topics
  9. Food Safety8▲ 9.0×5 topics
  10. Consumer Acceptance8▲ 40×2 topics
  11. Crystal Growth8▲ 8.8×8 topics
  12. Thermal Properties8▲ 19×5 topics
  13. Medical Imaging8▲ 4.7×4 topics
  14. Gamma Irradiation8▲ 129×2 topics
  15. Toxicity7▲ 5.3×8 topics
  16. Data Analysis7▲ 8.2×5 topics
  17. Food Irradiation7▲ 416×1 topic
  18. Irradiation Effects7▲ 416×1 topic
  19. Electrocatalysis7▲ 7.8×3 topics
  20. Gold Nanoparticles7▲ 27×3 topics
  21. Water Splitting7▲ 6.0×4 topics
  22. Catalysts7▲ 11×3 topics
  23. Metal-Organic Frameworks7▲ 5.0×5 topics
  24. Oxidation Behavior7▲ 33×2 topics
  25. Microstructural Characterization6▲ 93×1 topic
  26. Nuclear Graphite6▲ 93×1 topic
  27. Actinides6▲ 38×2 topics
  28. Oxidation Resistance6▲ 18×3 topics
  29. Adsorption6▲ 9.2×5 topics
  30. Radiation Detection6▲ 43×2 topics
  31. Inorganic Scintillators6▲ 58×1 topic
  32. Scintillation Detectors6▲ 58×1 topic
  33. Tomography6▲ 10×3 topics
  34. Hydrogen Embrittlement6▲ 22×2 topics
  35. Ionizing Radiation6▲ 26×2 topics
  36. High Temperature Behavior5▲ 29×2 topics
  37. Dosimetry5▲ 24×2 topics
  38. Sustainable Energy5▲ 9.3×4 topics
  39. Accident Tolerant Fuels5▲ 44×1 topic
  40. Fuel Cladding5▲ 44×1 topic

Which research topics does Instituto de Pesquisas Energéticas e Nucleares publish most on?

By volume in 2022–2025: Radiation Effects and Dosimetry, Graphite, nuclear technology, radiation studies, Radiation Detection and Scintillator Technologies and Nuclear Materials and Properties.

Radiation Effects and Do…7Radiation Effects and Dosimetry: 7 fractional worksGraphite, nuclear techno…6Graphite, nuclear technology, radiation studies: 6 fractional worksRadiation Detection and Scintillator Technologies: 6 fractional worksNuclear Materials and Properties: 5 fractional worksNuclear Physics and Applications: 5 fractional worksNuclear reactor physics and engineering: 5 fractional worksCatalytic Processes in Materials Science: 5 fractional worksElectrocatalysts for Ene…5Electrocatalysts for Energy Conversion: 5 fractional worksRadiation Therapy and Dosimetry: 4 fractional worksAdvanced Radiotherapy Techniques: 4 fractional works
Food ScienceMaterials ChemistryRadiationAerospace Engineering2 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Radiation Effects and Dosimetry Food Science 7 works
  2. 2 Graphite, nuclear technology, radiation studies Materials Chemistry 6 works
  3. 3 Radiation Detection and Scintillator Technologies Radiation 6 works
  4. 4 Nuclear Materials and Properties Materials Chemistry 5 works
  5. 5 Nuclear Physics and Applications Radiation 5 works
  6. 6 Nuclear reactor physics and engineering Aerospace Engineering 5 works
  7. 7 Catalytic Processes in Materials Science Materials Chemistry 5 works
  8. 8 Electrocatalysts for Energy Conversion Renewable Energy, Sustainability and the Environment 5 works
  9. 9 Radiation Therapy and Dosimetry Pulmonary and Respiratory Medicine 4 works
  10. 10 Advanced Radiotherapy Techniques Radiation 4 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available57.9%not open42.1%

World: 28% of research is openly available.

with international co-authors14.9%domestic only85.1%

World: 19% is written across borders.

How has Instituto de Pesquisas Energéticas e Nucleares's research output changed?

Output in 2018–2022 was 19% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in São Paulo

All research institutions in São Paulo

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.