Total 2,384,773 scientists, country 221, and institutions 24,456 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
Haematology
Immunology
Blood Group Serology
Blood Transfusion Science
Public Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
499
479
0.960
* Total i10 IndexRankings
Ranking Based On Selection: 2
corrosion
corrosion inhibition
corrosion of metals
adsorption
quantum chemical calculations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
471
405
0.860
* Total i10 IndexRankings
Ranking Based On Selection: 3
Nanotechnology for Water Treatment
Membrane Technology
Water Treatment Technologies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
369
290
0.786
* Total i10 IndexRankings
Ranking Based On Selection: 4
Macroeconomic Policy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
213
0.877
* Total i10 IndexRankings
Ranking Based On Selection: 5
Fractional Differential equations
Lie Symmetry
Bio-Mathematics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
215
170
0.791
* Total i10 IndexRankings
Ranking Based On Selection: 6
Analytical Chemistry
Aquatic Toxicology
Chromatography
Mass spectrometry
Food Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
159
0.846
* Total i10 IndexRankings
Ranking Based On Selection: 7
Preservation
Records management
Knowledge management
Research methods
indigenous knowledge
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
177
133
0.751
* Total i10 IndexRankings
Ranking Based On Selection: 8
Wastewater treatment technologies
Bioreactors
Membrane technology
Water reuse
Microbial fuel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
167
140
0.838
* Total i10 IndexRankings
Ranking Based On Selection: 9
Energy Efficiency
Fischer Tropsch
Process Synthesis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
152
79
0.520
* Total i10 IndexRankings
Ranking Based On Selection: 10
Career and Human Capacity Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
146
103
0.705
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* Total i10 IndexRankings
Ranking Based On Selection: 11
Fischer-Tropsch
Reactor design
Process Engineering
Comminution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
47
0.336
* Total i10 IndexRankings
Ranking Based On Selection: 12
NanoScience and Nanotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
83
0.675
* Total i10 IndexRankings
Ranking Based On Selection: 13
Polymers
Organic chemistry
Coating
Corrosion
Nanotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
109
0.940
* Total i10 IndexRankings
Ranking Based On Selection: 14
Climate Change
Loss and Damage
Disaster Risk Reduction
SDGs
Coastal Resilience and Livelihoods
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
91
0.784
* Total i10 IndexRankings
Ranking Based On Selection: 15
Advanced oxidation processes
Nanomaterial synthesis
Heterogeneous catalysis
Water treatment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
104
0.981
* Total i10 IndexRankings
Ranking Based On Selection: 16
Sol-Gel Technology
Nanomaterials
Ceramics and Water Treatment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
74
0.718
* Total i10 IndexRankings
Ranking Based On Selection: 17
Artificial Intelligence
Industry 4.0/5.0
Control Engineering
Evolutionary Optimization
Chaos
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
83
0.865
* Total i10 IndexRankings
Ranking Based On Selection: 18
Catalysis
catalytic energy conversion
fuel cell technology
surface chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
38
0.404
* Total i10 IndexRankings
Ranking Based On Selection: 19
Natural Organic Matter
Urban Water Cycle
Nanotechnology for Water Treatment
Drinking Water Treatment
Membrane Science and Te
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
81
0.910
* Total i10 IndexRankings
Ranking Based On Selection: 20
educational technology
higher education
learning analytics
student success
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
88
75
0.852
* Total i10 IndexRankings
Ranking Based On Selection: 21
Nanoscience and Nanotechnology
Surface Science
Nanophosphors
Energy
Material Sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
87
63
0.724
* Total i10 IndexRankings
Ranking Based On Selection: 22
Electrochemistry
Electrocatalysis
Energy Storage devices
Electrodeposition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
65
0.756
* Total i10 IndexRankings
Ranking Based On Selection: 23
Nanotechnology
Water Treatment Chemistry
Carbon Nanostructured Materials
Heterostructured Materials
Membrane Science and Tec
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
72
0.867
* Total i10 IndexRankings
Ranking Based On Selection: 24
Fischer Tropsch
catalysis
alternative energy
energy materials
CO2 utilization
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
71
0.877
* Total i10 IndexRankings
Ranking Based On Selection: 25
Participatory democracy and governance to address complex challenges
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
43
0.538
Emmanuel Ifeanyi Obeagu
Africa University
Mutare, Zimbabwe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
499
479
0.960
Haematology
Immunology
Blood Group Serology
Blood Transfusion Science
Public Health
Eno E. Ebenso
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
471
405
0.860
corrosion
corrosion inhibition
corrosion of metals
adsorption
quantum chemical calculations
Bhekie Mamba
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
369
290
0.786
Nanotechnology for Water Treatment
Membrane Technology
Water Treatment Technologies
Nicholas M Odhiambo
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
213
0.877
Hossein Jafari
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
215
170
0.791
Fractional Differential equations
Lie Symmetry
Bio-Mathematics
Titus AM Msagati
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
159
0.846
Analytical Chemistry
Aquatic Toxicology
Chromatography
Mass spectrometry
Food Chemistry
Patrick Ngulube
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
177
133
0.751
Preservation
Records management
Knowledge management
Research methods
indigenous knowledge
Ali Akbar Zinatizadeh
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
167
140
0.838
Wastewater treatment technologies
Bioreactors
Membrane technology
Water reuse
Microbial fuel
Diane Hildebrandt
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
152
79
0.520
Energy Efficiency
Fischer Tropsch
Process Synthesis
Melinde Coetzee
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
146
103
0.705
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David Glasser
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
47
0.336
Sekhar Chandra Ray
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
83
0.675
Omar Dagdag
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
109
0.940
Polymers
Organic chemistry
Coating
Corrosion
Nanotechnology
Godwell Nhamo
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
91
0.784
Climate Change
Loss and Damage
Disaster Risk Reduction
SDGs
Coastal Resilience and Livelihoods
Alex Kuvarega
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
104
0.981
Advanced oxidation processes
Nanomaterial synthesis
Heterogeneous catalysis
Water treatment
Shivani Bhardwaj Mishra
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
74
0.718
Sol-Gel Technology
Nanomaterials
Ceramics and Water Treatment
Zenghui Wang
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
83
0.865
Artificial Intelligence
Industry 4.0/5.0
Control Engineering
Evolutionary Optimization
Chaos
Mike Scurrell
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
38
0.404
Catalysis
catalytic energy conversion
fuel cell technology
surface chemistry
Thabo Ti Nkambule
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
81
0.910
Natural Organic Matter
Urban Water Cycle
Nanotechnology for Water Treatment
Drinking Water Treatment
Membrane Science and Te
Paul Prinsloo
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
88
75
0.852
educational technology
higher education
learning analytics
student success
Simon Dhlamini
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
87
63
0.724
Nanoscience and Nanotechnology
Surface Science
Nanophosphors
Energy
Material Sciences
Mkhulu Mathe
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
65
0.756
Electrochemistry
Electrocatalysis
Energy Storage devices
Electrodeposition
Edward Nxumalo
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
72
0.867
Nanotechnology
Water Treatment Chemistry
Carbon Nanostructured Materials
Heterostructured Materials
Membrane Science and Tec
Xinying Liu
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
71
0.877
Fischer Tropsch
catalysis
alternative energy
energy materials
CO2 utilization
Janet Mcintyre-Mills
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
43
0.538
Participatory democracy and governance to address complex challenges