Science Explorer Interactive view Map
University · Hong Kong · Hong Kong

City University of Hong Kong

In research, City University of Hong Kong stands highest in Physical Sciences (#37 of 12,888 worldwide), Engineering (#20 of 6,636 worldwide) and Electrical and Electronic Engineering (#10 of 2,318 worldwide), 2022–2025. Relative to its size it is most specialised in Renewable Energy, Sustainability and the Environment, Surfaces, Coatings and Films and Electrical and Electronic Engineering — Renewable Energy, Sustainability and the Environment is 3.1× its share of world research.

cityu.edu.hkROR OpenAlex
World rank, 2022–2025
#57
of 28,054 · #229 all time
Rank in Hong Kong
#3
of 21
Research works
51k
▲ 27% vs 2013–17
Citations
1.5M
29.9 per fractional work
Top-10% rate
31.8%
record average 16.5%
Open access
27%
world 28%

What is City University of Hong Kong 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 #37 of 12,888 32.2%8,061 #156
EngineeringField #20 of 6,636 33.2%3,769 #35
Electrical and Electronic EngineeringSubfield #10 of 2,318 35.5%1,280 #14
Computer ScienceField #32 of 4,667 31.2%1,748 #99
Materials ScienceField #20 of 2,468 33.9%893 #72
Social SciencesDomain #143 of 10,521 32.0%2,433 #241
Materials ChemistrySubfield #23 of 1,556 32.6%524 #66
Mechanical EngineeringSubfield #31 of 1,351 32.2%398 #74
Artificial IntelligenceSubfield #48 of 1,884 31.1%560 #74
Information SystemsSubfield #37 of 1,291 37.6%161 #76

Each strip is that field’s whole ranked pool, with the notch where City University of Hong Kong 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).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#156 #37
  2. Engineering#35 #20
  3. Electrical and Electronic Engineering#14 #10
  4. Computer Science#99 #32
  5. Materials Science#72 #20
  6. Social Sciences#241 #143
  7. Materials Chemistry#66 #23
  8. Mechanical Engineering#74 #31
  9. Artificial Intelligence#74 #48
  10. Information Systems#76 #37
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does City University of Hong Kong specialise in?

Where its research is concentrated relative to its size: Renewable Energy, Sustainability and the Environment takes 3.1× the share of its output that it takes of world research.

  1. Renewable Energy, Sustainability and the EnvironmentSubfield · 280.7 works3.1×
  2. Surfaces, Coatings and FilmsSubfield · 35.4 works3.0×
  3. Electrical and Electronic EngineeringSubfield · 1,280.1 works3.0×
  4. Electronic, Optical and Magnetic MaterialsSubfield · 162.3 works3.0×
  5. Computer Vision and Pattern RecognitionSubfield · 435.9 works2.9×
  6. CatalysisSubfield · 50.8 works2.9×
← 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: 0.18× its world share, 104 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.62× its world share, 394 worksBiochemistry, Geneti…Immunology and Microbiology: 0.46× its world share, 55 worksImmunology and Micro…Neuroscience: 1.01× its world share, 196 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.32× its world share, 13 worksPharmacology, Toxico…Chemical Engineering: 1.72× its world share, 72 worksChemical EngineeringChemistry: 0.88× its world share, 164 worksChemistryComputer Science: 1.88× its world share, 1,748 worksComputer ScienceEarth and Planetary Sciences: 0.70× its world share, 132 worksEarth and Planetary …Energy: 2.71× its world share, 297 worksEnergyEngineering: 2.11× its world share, 3,769 worksEngineeringEnvironmental Science: 0.94× its world share, 556 worksEnvironmental ScienceMaterials Science: 2.15× its world share, 893 worksMaterials ScienceMathematics: 0.99× its world share, 139 worksMathematicsPhysics and Astronomy: 1.10× its world share, 290 worksPhysics and AstronomyDentistry: 0.12× its world share, 7 worksDentistryHealth Professions: 0.39× its world share, 121 worksHealth ProfessionsMedicine: 0.22× its world share, 504 worksMedicineNursing: 0.20× its world share, 12 worksNursingVeterinary: 1.52× its world share, 25 worksVeterinaryArts and Humanities: 0.54× its world share, 186 worksArts and HumanitiesBusiness, Management and Accounting: 1.11× its world share, 426 worksBusiness, Management…Decision Sciences: 1.49× its world share, 172 worksDecision SciencesEconomics, Econometrics and Finance: 1.21× its world share, 309 worksEconomics, Econometr…Psychology: 1.01× its world share, 367 worksPsychologySocial Sciences: 0.65× its world share, 975 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Energy, 2.7×. Every wedge is a field page.

Who are the top researchers at City University of Hong Kong?

Ranked on the composite score, Qingfu Zhang, K. Chan and Cong Wang lead among researchers whose main affiliation is City University of Hong Kong.

  1. 1 Qingfu Zhang Hong Kong · #4,311 worldwide 2.6k citations · 138 works
  2. 2 K. Chan Hong Kong · #6,958 worldwide 2.6k citations · 55 works
  3. 3 Cong Wang Hong Kong · #9,901 worldwide 1.4k citations · 139 works
  4. 4 C. M. Tam Hong Kong · #12,219 worldwide 925 citations · 62 works
  5. 5 Steve Smale Hong Kong · #12,987 worldwide 1.1k citations · 45 works
  6. 6 Zhilin Yang Hong Kong · #13,427 worldwide 946 citations · 48 works
  7. 7 Guanrong Chen Hong Kong · #16,480 worldwide 5.4k citations · 497 works
  8. 8 Chunyi Zhi Hong Kong · #18,728 worldwide 2.4k citations · 105 works
  9. 9 Daniel W. C. Ho Hong Kong · #20,455 worldwide 1.6k citations · 144 works
  10. 10 Chaoliang Tan Hong Kong · #24,864 worldwide 1.5k citations · 40 works
All ranked researchers at City University of Hong Kong

Which keywords describe research at City University of Hong Kong?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Deep Learning, Cathode Materials, Neural Networks, Energy Storage, Nanomaterials, Machine Learning, Rechargeable Batteries and Graphene.

▲ 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. Deep Learning839▲ 2.1×83 topics
  2. Machine Learning525▲ 1.35×88 topics
  3. Neural Networks468▲ 2.5×38 topics
  4. Nanomaterials346▲ 2.7×20 topics
  5. Energy Storage334▲ 4.3×12 topics
  6. Cathode Materials300▲ 6.4×3 topics
  7. Biomedical Applications267▲ 1.89×32 topics
  8. Graphene240▲ 2.9×12 topics
  9. Energy Efficiency238▲ 2.1×37 topics
  10. Nanoparticles231▲ 1.54×40 topics
  11. Mechanical Properties208▲ 1.80×37 topics
  12. Rechargeable Batteries203▲ 6.3×2 topics
  13. Nanocomposites189▲ 1.97×22 topics
  14. Metal-Organic Frameworks188▲ 3.8×6 topics
  15. Water Splitting185▲ 4.2×4 topics
  16. Catalysis177▲ 2.2×28 topics
  17. Lithium-ion Batteries175▲ 3.5×4 topics
  18. Electrocatalysis168▲ 5.0×5 topics
  19. Artificial Neural Networks164▲ 2.9×9 topics
  20. Efficiency151▲ 4.2×8 topics
  21. Semiconductors143▲ 3.9×5 topics
  22. Energy Conversion142▲ 5.8×5 topics
  23. Semiconductor134▲ 3.3×7 topics
  24. Nanocrystals126▲ 3.9×5 topics
  25. Crystal Growth126▲ 3.8×11 topics
  26. Stability124▲ 4.5×8 topics
  27. Catalysts123▲ 5.3×3 topics
  28. Metamaterials119▲ 7.1×5 topics
  29. Sensor Networks118▲ 4.0×6 topics
  30. CO2 Reduction113▲ 4.4×2 topics
  31. Light-Emitting Diodes105▲ 5.7×3 topics
  32. Aqueous Zinc-Ion Batteries104▲ 8.5×1 topic
  33. Zinc Anode104▲ 8.5×1 topic
  34. Organometal Halide Perovskites100▲ 7.4×1 topic
  35. Perovskite Solar Cells100▲ 7.4×1 topic
  36. Lithium-Sulfur Batteries99▲ 5.8×2 topics
  37. Ionic Conductivity98▲ 6.0×2 topics
  38. Nanostructured Cathodes96▲ 6.6×1 topic
  39. Solid-State Electrolytes96▲ 6.6×1 topic
  40. Wireless Power Transfer94▲ 8.3×2 topics

Which research topics does City University of Hong Kong publish most on?

By volume in 2022–2025: Advanced battery technologies research, Perovskite Materials and Applications, Advancements in Battery Materials and Advanced Battery Materials and Technologies.

Advanced battery technol…104Advanced battery technologies research: 104 fractional worksPerovskite Materials and…100Perovskite Materials and Applications: 100 fractional worksAdvancements in Battery Materials: 99 fractional worksAdvanced Battery Materia…96Advanced Battery Materials and Technologies: 96 fractional worksElectrocatalysts for Ene…90Electrocatalysts for Energy Conversion: 90 fractional worksAdvanced Photocatalysis Techniques: 86 fractional worksAdvanced Sensor and Energy Harvesting Materials: 82 fractional worksAntenna Design and Analy…78Antenna Design and Analysis: 78 fractional worksConducting polymers and applications: 66 fractional worksAdvanced Battery Technologies Research: 63 fractional works
Electrical and Electronic EngineeringRenewable Energy, Sustainability and the EnvironmentBiomedical EngineeringAerospace Engineering2 others

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

  1. 1 Advanced battery technologies research Electrical and Electronic Engineering 104 works
  2. 2 Perovskite Materials and Applications Electrical and Electronic Engineering 100 works
  3. 3 Advancements in Battery Materials Electrical and Electronic Engineering 99 works
  4. 4 Advanced Battery Materials and Technologies Electrical and Electronic Engineering 96 works
  5. 5 Electrocatalysts for Energy Conversion Renewable Energy, Sustainability and the Environment 90 works
  6. 6 Advanced Photocatalysis Techniques Renewable Energy, Sustainability and the Environment 86 works
  7. 7 Advanced Sensor and Energy Harvesting Materials Biomedical Engineering 82 works
  8. 8 Antenna Design and Analysis Aerospace Engineering 78 works
  9. 9 Conducting polymers and applications Polymers and Plastics 66 works
  10. 10 Advanced Battery Technologies Research Automotive Engineering 63 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 available26.9%not open73.1%

World: 28% of research is openly available.

with international co-authors51.1%domestic only48.9%

World: 19% is written across borders.

How has City University of Hong Kong's research output changed?

Output in 2018–2022 was 27% 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 Hong Kong

All research institutions in Hong Kong

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.