Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (901,365 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :2
Majeda Khraisheh
Ionic liquids
natural gas hydrates
membrane distilation CO2 conversion
wastewater treatment
adsorption
Metrics
H-Index
i10 Index
Citation
63
178
17,748
* Rankings
Ranking Based On Selection :4
Rahul R Bhosale
Solar Thermal Processes
Alternative Fuels
CO2 Capture & Utilization
Materials and Catalysis
Metrics
H-Index
i10 Index
Citation
50
122
6,259
* Rankings
Ranking Based On Selection :5
Anand Kumar
Reaction and Catalysis
Catalysts synthesis
Mixed metal oxides
Heterogeneous catalysis
Metrics
H-Index
i10 Index
Citation
46
111
5,574
* Rankings
Ranking Based On Selection :6
Ramazan Kahraman
Materials
Composites
Coatings
Corrosion
Energy
Metrics
H-Index
i10 Index
Citation
45
100
6,110
* Rankings
Ranking Based On Selection :7
Hazim Mohameed Qiblawey
Desalination
Water Treatment and Reuse. Crystallization
Metrics
H-Index
i10 Index
Citation
42
90
5,308
* Rankings
Ranking Based On Selection :8
Mustafa Saleh Nasser
Complex Fluids
Formulation
Colloids and Surfaces
Wastewater Treatment
Metrics
H-Index
i10 Index
Citation
41
113
8,131
* Rankings
Ranking Based On Selection :10
Mohammed J Al Marri
Molecular Simulations
Gas Processing
Catalysis and Renewable Energy
Metrics
H-Index
i10 Index
Citation
36
77
7,380
* Rankings
Ranking Based On Selection :11
Nasr Bensalah
Electrochemistry
Energy Storage Devices
Nanomaterials
Analytical Chemistry
Environmental Chemistry
Metrics
H-Index
i10 Index
Citation
33
76
4,059
* Rankings
Ranking Based On Selection :12
Fadwa Eljack
Gas Processing
Process Safety
Hydrogen Economy
Process Design
Process Optimization
Metrics
H-Index
i10 Index
Citation
27
47
2,129
* Rankings
Ranking Based On Selection :13
Ahmed Alnouss
Process Design and Optimization
Computer Aided Design
Metrics
H-Index
i10 Index
Citation
24
44
2,154
* Rankings
Ranking Based On Selection :14
Zeinab Abbas Jawad
Membrane Technology
Nanotechnology
Gas Separation
Advanced Materials
Petroleum Refinery and
Metrics
H-Index
i10 Index
Citation
18
27
1,223
* Rankings
Ranking Based On Selection :15
Mohammad Aman Ullah
Chromatography
Adsorption
Modeling
Optimization
Control
Metrics
H-Index
i10 Index
Citation
16
20
1,218
* Rankings
Ranking Based On Selection :16
Noura Dawass
Molecular simulations
Engineering thermodynamics
Chemical engineering
Confined media
Molecular models
Metrics
H-Index
i10 Index
Citation
9
9
338
Amzan Alsabri
Chemical Engineering
Process
LCA
Decarbonization
Metrics
H-Index
i10 Index
Citation
4
3
271
Reem Elaf
Chemical Engineering
Gas and Process Engineering
Oilfield Chemistry
Conformance Control
Rheology
Metrics
H-Index
i10 Index
Citation
4
3
45
Mohammad Al Hamad
Scale Inhibition
Process Integration
Chemical Engineering
Metrics
H-Index
i10 Index
Citation
2
1
18
Rankings
Ranking Based On Selection: 1
Bassim H Hameed
Metrics
H-Index
i10 Index
Citation Counts
132
330
70,549
Rankings
Ranking Based On Selection: 2
Majeda Khraisheh
Metrics
H-Index
i10 Index
Citation Counts
63
178
17,748
Ionic liquids
natural gas hydrates
membrane distilation CO2 conversion
wastewater treatment
adsorption
Rankings
Ranking Based On Selection: 3
Fares Almomani
Metrics
H-Index
i10 Index
Citation Counts
58
213
10,766
Rankings
Ranking Based On Selection: 4
Rahul R Bhosale
Metrics
H-Index
i10 Index
Citation Counts
50
122
6,259
Solar Thermal Processes
Alternative Fuels
CO2 Capture & Utilization
Materials and Catalysis
Rankings
Ranking Based On Selection: 5
Anand Kumar
Metrics
H-Index
i10 Index
Citation Counts
46
111
5,574
Reaction and Catalysis
Catalysts synthesis
Mixed metal oxides
Heterogeneous catalysis
Rankings
Ranking Based On Selection: 6
Ramazan Kahraman
Metrics
H-Index
i10 Index
Citation Counts
45
100
6,110
Rankings
Ranking Based On Selection: 7
Hazim Mohameed Qiblawey
Metrics
H-Index
i10 Index
Citation Counts
42
90
5,308
Desalination
Water Treatment and Reuse. Crystallization
Rankings
Ranking Based On Selection: 8
Mustafa Saleh Nasser
Metrics
H-Index
i10 Index
Citation Counts
41
113
8,131
Complex Fluids
Formulation
Colloids and Surfaces
Wastewater Treatment
Rankings
Ranking Based On Selection: 9
Advanced Materials
Adsorption
Membrane Separations
Energy Conversion
Rankings
Ranking Based On Selection: 10
Mohammed J Al Marri
Metrics
H-Index
i10 Index
Citation Counts
36
77
7,380
Molecular Simulations
Gas Processing
Catalysis and Renewable Energy
Rankings
Ranking Based On Selection: 11
Nasr Bensalah
Metrics
H-Index
i10 Index
Citation Counts
33
76
4,059
Electrochemistry
Energy Storage Devices
Nanomaterials
Analytical Chemistry
Environmental Chemistry
Rankings
Ranking Based On Selection: 12
Fadwa Eljack
Metrics
H-Index
i10 Index
Citation Counts
27
47
2,129
Gas Processing
Process Safety
Hydrogen Economy
Process Design
Process Optimization
Rankings
Ranking Based On Selection: 13
Ahmed Alnouss
Metrics
H-Index
i10 Index
Citation Counts
24
44
2,154
Process Design and Optimization
Computer Aided Design
Rankings
Ranking Based On Selection: 14
Zeinab Abbas Jawad
Metrics
H-Index
i10 Index
Citation Counts
18
27
1,223
Membrane Technology
Nanotechnology
Gas Separation
Advanced Materials
Petroleum Refinery and
Rankings
Ranking Based On Selection: 15
Mohammad Aman Ullah
Metrics
H-Index
i10 Index
Citation Counts
16
20
1,218
Chromatography
Adsorption
Modeling
Optimization
Control
Rankings
Ranking Based On Selection: 16
Noura Dawass
Metrics
H-Index
i10 Index
Citation Counts
9
9
338
Molecular simulations
Engineering thermodynamics
Chemical engineering
Confined media
Molecular models
Rankings
Ranking Based On Selection: 17
Amzan Alsabri
Metrics
H-Index
i10 Index
Citation Counts
4
3
271
Rankings
Ranking Based On Selection: 18
Ahmed Gomaa Talkhan
Metrics
H-Index
i10 Index
Citation Counts
4
3
91
Rankings
Ranking Based On Selection: 19
Reem Elaf
Metrics
H-Index
i10 Index
Citation Counts
4
3
45
Chemical Engineering
Gas and Process Engineering
Oilfield Chemistry
Conformance Control
Rheology
Rankings
Ranking Based On Selection: 20
Iman Madhoun
Metrics
H-Index
i10 Index
Citation Counts
2
1
69
Rankings
Ranking Based On Selection: 21
Mohammad Al Hamad
Metrics
H-Index
i10 Index
Citation Counts
2
1
18
Scale Inhibition
Process Integration
Chemical Engineering
Rankings
Ranking Based On Selection: 22
Arafat Abdulhakim Abdulhak Mohammed
Metrics
H-Index
i10 Index
Citation Counts
2
1
16