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" (873,864 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 :1
Alimorad Rashidi
Nanofluids
Nanocatalyst
Nanoadsorbent
Gas separation and storage
Desulfurization
Metrics
H-Index
i10 Index
Citation
74
375
22,030
* Rankings
Ranking Based On Selection :2
Hamid Shirkhanloo
Chemistry & Biochemistry
Enviromental Chemistry
Nano technology
British Columbia Canada
Metrics
H-Index
i10 Index
Citation
31
61
2,020
* Rankings
Ranking Based On Selection :3
Rouhollah Soleyman
Synthesis of polymers
Synthesis of hydrogels
Synthesis of nanomaterials
Metrics
H-Index
i10 Index
Citation
24
36
1,690
* Rankings
Ranking Based On Selection :11
Farzad Bahadoran
Inorganic chemistry
Gas Conversion
Heterogeneous Catalysis ...
Metrics
H-Index
i10 Index
Citation
20
28
1,021
* Rankings
Ranking Based On Selection :15
Mehdi Rashidzadeh|rashidzadeh M.
Heterogeneous Catalysis
photocatalysis
clean fuels
Environmental Issues
Metrics
H-Index
i10 Index
Citation
19
30
1,085
* Rankings
Ranking Based On Selection :17
Zahra Sadeghian
Electrocatalyst
Energy Materials
Surface Science
Photocatalyst Ceramic Membrane
Nanocomposite
Metrics
H-Index
i10 Index
Citation
19
27
965
* Rankings
Ranking Based On Selection :20
Ali Karimi
Catalysis
GTL
Gas Conversion
Baggas Conversion
Metrics
H-Index
i10 Index
Citation
18
26
1,061
* Rankings
Ranking Based On Selection :22
Alireza Rahimi
Electrochemistry
Corrosion
Electrodeposition
corrosion inhibitors
Metrics
H-Index
i10 Index
Citation
17
19
1,096
* Rankings
Ranking Based On Selection :24
Shahab Gerami
Enhanced Oil and Gas Recovery
Naturally Fractured Reservoirs
Gas Condensate Reservoirs
Production Data Analysis
Metrics
H-Index
i10 Index
Citation
17
26
1,010
* Rankings
Ranking Based On Selection :26
Ali Mohajri
Organic synthesis
Carbon nanotube
alkanolamines
adsorption
Metrics
H-Index
i10 Index
Citation
17
23
1,508
* Rankings
Ranking Based On Selection :32
Saber Mohammadi
Petroleum Eng.
Flow Assurance
Asphaltene & Wax
Nanoparticles
Well Stimulation
Metrics
H-Index
i10 Index
Citation
15
20
842
* Rankings
Ranking Based On Selection :34
J Ivakpour
Distillation
Optimization
Artificial Intelligence
Petroleum Refining
Process Synthesis
Metrics
H-Index
i10 Index
Citation
15
17
788
* Rankings
Ranking Based On Selection :36
Saeideh Tasharrofi
Environmental pollution control
Removal pollutants
Remediation
Nano application in environment
Metrics
H-Index
i10 Index
Citation
14
16
657
* Rankings
Ranking Based On Selection :40
Leila Samiee
Renewable energy especially in the fields of: (Fuel Cell
Hydrogen purification)
photocatalysis
Colloid science and Interface
Metrics
H-Index
i10 Index
Citation
14
19
555
* Rankings
Ranking Based On Selection :42
Amir Vahid
Chemistry
Nanomaterials
Petroleum science & Technology
Chemical engineering
Metrics
H-Index
i10 Index
Citation
12
14
596
* Rankings
Ranking Based On Selection :44
Davood M Maklavany
Carbon Nanostructures
CO2 Capture
Sustainability
Metrics
H-Index
i10 Index
Citation
11
11
532
* Rankings
Ranking Based On Selection :46
Mohsen Sabouri
Surface Science and Coatings
Electrochemical aspects of corrosion
Plasma Eletrolysis
Nanomaterials
Materials Characterizatio
Metrics
H-Index
i10 Index
Citation
11
11
412
Samira Mosleh
membrane separation process
nanocomposites
gas separation
Metrics
H-Index
i10 Index
Citation
9
9
319
Vahid Naghavi
Model predictive and optimization-based control
Networked Control Systems
Control of distributed systems
State Estimation
Metrics
H-Index
i10 Index
Citation
9
8
333
Aliasghar Rohani
Process Design Engineering
Chemical Eng
Metrics
H-Index
i10 Index
Citation
8
6
390
Mohammad Mazidi Sharfabadi
Internal Combustion Engine
Inverse Heat Transfer
Thermal Contact
Renewable and Sustainable Energy
Metrics
H-Index
i10 Index
Citation
7
7
161
Hamid Reza Mahdipoor
Metal-Organic Frameworks
Gas Separation
Carbon Capture
Sulfur Recovery
Metrics
H-Index
i10 Index
Citation
7
6
201
Hassan Biglarian
Ground source heat pump
Energy
Building energy simulation
Solar energy
CFD
Metrics
H-Index
i10 Index
Citation
6
6
176
Ali Ghaffari
Chemical process Engineering
modeling and simulation
Metrics
H-Index
i10 Index
Citation
6
5
946
Fatemeh Goodarzvand-Chegini
Heat Integration
Energy Optimization
Waste Recovery
Carbon Management
Emission Reduction
Metrics
H-Index
i10 Index
Citation
6
2
59
Hanif Tahersima
Artificial Intelligence
Adaptive Systems
Modeling
Metrics
H-Index
i10 Index
Citation
5
3
74
Abbas Jorsaraei Talar
Environmental Engineering
Chemical Engineering
Nanotechnology
Water Desalination
Membrane Technology
Metrics
H-Index
i10 Index
Citation
4
4
95
Hamed Sharifi
Air Pollution Modeling
Air Quality Management
Metrics
H-Index
i10 Index
Citation
4
3
108
Ghasem Ebrahimi
Electroplating
Nanocoatings
Corrosion protection
Metrics
H-Index
i10 Index
Citation
3
3
66
Hossein Beyrami
Iterative Methods
Interval Analysis
Reproducing Kernel Spaces
Integral Equations
Metrics
H-Index
i10 Index
Citation
3
3
55
Hossein Zangeneh
Reservoir Engineering
Carbon Capture and Storage
Metrics
H-Index
i10 Index
Citation
3
2
65
Amin Rezaei Namin
Interfacial Tension
Hydrogen Storage
Ionic Liquids
Asphaltene
Nanotechnology
Metrics
H-Index
i10 Index
Citation
3
1
28
Mortaza Afshari
Analytical Chemistry
Electrochemistry
Corrosion
Material Science
Water and waste water
Metrics
H-Index
i10 Index
Citation
2
1
22
ابراهیم علایی
BIOREMEDIATION
PHYTOREMEDIATION
ENVIRONMENTAL SCIENCE
Metrics
H-Index
i10 Index
Citation
2
0
13
Sajad Karimi Mazidi
Process Modeling
Optimization
Simulation
Metrics
H-Index
i10 Index
Citation
1
1
29
Borhan Shahmohammadi
Low salinity polymer flooding
Gel polymer
Fluid loss control
Shale inhibition
Metrics
H-Index
i10 Index
Citation
1
0
9
Sahar Zargari
Data Analysis
AI
Network security
Big Data
Data Mining
Metrics
H-Index
i10 Index
Citation
1
0
6
Rankings
Ranking Based On Selection: 1
Alimorad Rashidi
Metrics
H-Index
i10 Index
Citation Counts
74
375
22,030
Nanofluids
Nanocatalyst
Nanoadsorbent
Gas separation and storage
Desulfurization
Rankings
Ranking Based On Selection: 2
Hamid Shirkhanloo
Metrics
H-Index
i10 Index
Citation Counts
31
61
2,020
Chemistry & Biochemistry
Enviromental Chemistry
Nano technology
British Columbia Canada
Rankings
Ranking Based On Selection: 3
Rouhollah Soleyman
Metrics
H-Index
i10 Index
Citation Counts
24
36
1,690
Synthesis of polymers
Synthesis of hydrogels
Synthesis of nanomaterials
Rankings
Ranking Based On Selection: 4
Amir Hossein Jalili
Metrics
H-Index
i10 Index
Citation Counts
23
30
2,639
Applied Thermodynamics
Natural Gas Treatment
Ionic Liquids
Rankings
Ranking Based On Selection: 5
Seyed Ali Mousavi Dehghani
Metrics
H-Index
i10 Index
Citation Counts
23
38
1,728
Rankings
Ranking Based On Selection: 6
Abbas Shahrabadi
Metrics
H-Index
i10 Index
Citation Counts
22
41
1,565
Rankings
Ranking Based On Selection: 7
jaber neshati
Metrics
H-Index
i10 Index
Citation Counts
22
37
1,909
Rankings
Ranking Based On Selection: 8
Mina Adibi
Metrics
H-Index
i10 Index
Citation Counts
22
25
1,460
Rankings
Ranking Based On Selection: 9
Maryam Abbasghorbani
Metrics
H-Index
i10 Index
Citation Counts
22
24
1,573
Rankings
Ranking Based On Selection: 10
Sayed Javid Royaee
Metrics
H-Index
i10 Index
Citation Counts
21
40
1,266
Rankings
Ranking Based On Selection: 11
Farzad Bahadoran
Metrics
H-Index
i10 Index
Citation Counts
20
28
1,021
Inorganic chemistry
Gas Conversion
Heterogeneous Catalysis ...
Rankings
Ranking Based On Selection: 12
Jamal Aalaie
Metrics
H-Index
i10 Index
Citation Counts
20
35
1,150
Polymer
Nanocomposite
Rheology
Hydrogel
Oil recovery
Rankings
Ranking Based On Selection: 13
mehdi Dastgheib
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,845
Rankings
Ranking Based On Selection: 14
Hassan Naderi
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,107
Rankings
Ranking Based On Selection: 15
Mehdi Rashidzadeh|rashidzadeh M.
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,085
Heterogeneous Catalysis
photocatalysis
clean fuels
Environmental Issues
Rankings
Ranking Based On Selection: 17
Zahra Sadeghian
Metrics
H-Index
i10 Index
Citation Counts
19
27
965
Electrocatalyst
Energy Materials
Surface Science
Photocatalyst Ceramic Membrane
Nanocomposite
Rankings
Ranking Based On Selection: 18
Esmaeil Akbarinezhad
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,237
Rankings
Ranking Based On Selection: 19
Mansour Bazmi
Metrics
H-Index
i10 Index
Citation Counts
18
26
823
Rankings
Ranking Based On Selection: 20
Ali Karimi
Metrics
H-Index
i10 Index
Citation Counts
18
26
1,061
Catalysis
GTL
Gas Conversion
Baggas Conversion
Rankings
Ranking Based On Selection: 21
Mahmoud Shavandi
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,246
Rankings
Ranking Based On Selection: 22
Alireza Rahimi
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,096
Electrochemistry
Corrosion
Electrodeposition
corrosion inhibitors
Rankings
Ranking Based On Selection: 24
Shahab Gerami
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,010
Enhanced Oil and Gas Recovery
Naturally Fractured Reservoirs
Gas Condensate Reservoirs
Production Data Analysis
Rankings
Ranking Based On Selection: 25
Ghader Khanbabaei
Metrics
H-Index
i10 Index
Citation Counts
17
23
944
Rankings
Ranking Based On Selection: 26
Ali Mohajri
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,508
Organic synthesis
Carbon nanotube
alkanolamines
adsorption
Rankings
Ranking Based On Selection: 27
Mahshad Alaei
Metrics
H-Index
i10 Index
Citation Counts
16
19
846
Rankings
Ranking Based On Selection: 28
Yahya Zamani
Metrics
H-Index
i10 Index
Citation Counts
16
21
1,081
Rankings
Ranking Based On Selection: 29
Hamid Ganji
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,333
Rankings
Ranking Based On Selection: 30
Hadi Ebrahimi
Metrics
H-Index
i10 Index
Citation Counts
16
18
688
Rankings
Ranking Based On Selection: 32
Saber Mohammadi
Metrics
H-Index
i10 Index
Citation Counts
15
20
842
Petroleum Eng.
Flow Assurance
Asphaltene & Wax
Nanoparticles
Well Stimulation
Rankings
Ranking Based On Selection: 33
Nasser Keshavarz Faraj Khah
Metrics
H-Index
i10 Index
Citation Counts
15
18
494
Seismology
Gas Hydrate
Formation pressure
Reservoir modelling
Rankings
Ranking Based On Selection: 34
J Ivakpour
Metrics
H-Index
i10 Index
Citation Counts
15
17
788
Distillation
Optimization
Artificial Intelligence
Petroleum Refining
Process Synthesis
Rankings
Ranking Based On Selection: 35
Hamid Reza Aghabozorg
Metrics
H-Index
i10 Index
Citation Counts
15
22
770
Catalysis
Inorganic Chemistry
Zeolite
Nanotechnology
Rankings
Ranking Based On Selection: 36
Saeideh Tasharrofi
Metrics
H-Index
i10 Index
Citation Counts
14
16
657
Environmental pollution control
Removal pollutants
Remediation
Nano application in environment
Rankings
Ranking Based On Selection: 37
Ali Mehdizadeh
Metrics
H-Index
i10 Index
Citation Counts
14
16
1,429
Rankings
Ranking Based On Selection: 38
Maryam Abbasghorbani
Metrics
H-Index
i10 Index
Citation Counts
14
15
946
Rankings
Ranking Based On Selection: 39
Majid Esmaeili
Metrics
H-Index
i10 Index
Citation Counts
14
24
1,037
Membrane Preparation
Membrane Unit Design & Operation
Rankings
Ranking Based On Selection: 40
Leila Samiee
Metrics
H-Index
i10 Index
Citation Counts
14
19
555
Renewable energy especially in the fields of: (Fuel Cell
Hydrogen purification)
photocatalysis
Colloid science and Interface
Rankings
Ranking Based On Selection: 41
Sedigheh Sadegh Hassani
Metrics
H-Index
i10 Index
Citation Counts
13
13
623
Nanothechnology
Zeolite
Catalysts
Scanning probe microscopy
Rankings
Ranking Based On Selection: 42
Amir Vahid
Metrics
H-Index
i10 Index
Citation Counts
12
14
596
Chemistry
Nanomaterials
Petroleum science & Technology
Chemical engineering
Rankings
Ranking Based On Selection: 44
Davood M Maklavany
Metrics
H-Index
i10 Index
Citation Counts
11
11
532
Carbon Nanostructures
CO2 Capture
Sustainability
Rankings
Ranking Based On Selection: 45
Hamid Ghassabzadeh
Metrics
H-Index
i10 Index
Citation Counts
11
11
717
Rankings
Ranking Based On Selection: 46
Mohsen Sabouri
Metrics
H-Index
i10 Index
Citation Counts
11
11
412
Surface Science and Coatings
Electrochemical aspects of corrosion
Plasma Eletrolysis
Nanomaterials
Materials Characterizatio
Rankings
Ranking Based On Selection: 47
Mahnaz Pourkhalil
Metrics
H-Index
i10 Index
Citation Counts
10
11
574
Rankings
Ranking Based On Selection: 49
Hadi Bagherzadeh
Metrics
H-Index
i10 Index
Citation Counts
10
10
785
EOR
Flow assurance
Thermal recovery
Partial upgrading
CFD
Rankings
Ranking Based On Selection: 50
Najmeh Farzin Nejad
Metrics
H-Index
i10 Index
Citation Counts
10
12
435
Rankings
Ranking Based On Selection: 51
Mahdi Zeinali Hassanvand
Metrics
H-Index
i10 Index
Citation Counts
10
10
316
Rankings
Ranking Based On Selection: 52
Samira Mosleh
Metrics
H-Index
i10 Index
Citation Counts
9
9
319
membrane separation process
nanocomposites
gas separation
Rankings
Ranking Based On Selection: 54
Vahid Naghavi
Metrics
H-Index
i10 Index
Citation Counts
9
8
333
Model predictive and optimization-based control
Networked Control Systems
Control of distributed systems
State Estimation
Rankings
Ranking Based On Selection: 55
Aliasghar Rohani
Metrics
H-Index
i10 Index
Citation Counts
8
6
390
Process Design Engineering
Chemical Eng
Rankings
Ranking Based On Selection: 56
Mohammad Mazidi Sharfabadi
Metrics
H-Index
i10 Index
Citation Counts
7
7
161
Internal Combustion Engine
Inverse Heat Transfer
Thermal Contact
Renewable and Sustainable Energy
Rankings
Ranking Based On Selection: 60
Taghipoors
Metrics
H-Index
i10 Index
Citation Counts
7
5
192
Rankings
Ranking Based On Selection: 61
Hamid Reza Mahdipoor
Metrics
H-Index
i10 Index
Citation Counts
7
6
201
Metal-Organic Frameworks
Gas Separation
Carbon Capture
Sulfur Recovery
Rankings
Ranking Based On Selection: 62
Hassan Biglarian
Metrics
H-Index
i10 Index
Citation Counts
6
6
176
Ground source heat pump
Energy
Building energy simulation
Solar energy
CFD
Rankings
Ranking Based On Selection: 63
Ali Ghaffari
Metrics
H-Index
i10 Index
Citation Counts
6
5
946
Chemical process Engineering
modeling and simulation
Rankings
Ranking Based On Selection: 64
Fatemeh Goodarzvand-Chegini
Metrics
H-Index
i10 Index
Citation Counts
6
2
59
Heat Integration
Energy Optimization
Waste Recovery
Carbon Management
Emission Reduction
Rankings
Ranking Based On Selection: 66
Mohammadali Safavi
Metrics
H-Index
i10 Index
Citation Counts
5
5
717
Rankings
Ranking Based On Selection: 67
Peyman Moein
Metrics
H-Index
i10 Index
Citation Counts
5
4
330
Rankings
Ranking Based On Selection: 68
Maryam Mirshahani
Metrics
H-Index
i10 Index
Citation Counts
5
2
90
Organic Geochemistry
Organic Petrography
Fluid Inclusion
Rankings
Ranking Based On Selection: 70
Faeze Tari
Metrics
H-Index
i10 Index
Citation Counts
5
0
45
Rankings
Ranking Based On Selection: 71
Hanif Tahersima
Metrics
H-Index
i10 Index
Citation Counts
5
3
74
Artificial Intelligence
Adaptive Systems
Modeling
Rankings
Ranking Based On Selection: 72
Abbas Jorsaraei Talar
Metrics
H-Index
i10 Index
Citation Counts
4
4
95
Environmental Engineering
Chemical Engineering
Nanotechnology
Water Desalination
Membrane Technology
Rankings
Ranking Based On Selection: 73
Hamed Sharifi
Metrics
H-Index
i10 Index
Citation Counts
4
3
108
Air Pollution Modeling
Air Quality Management
Rankings
Ranking Based On Selection: 74
Vahid Abdolkarimi
Metrics
H-Index
i10 Index
Citation Counts
4
2
77
Rankings
Ranking Based On Selection: 76
M Amiri
Metrics
H-Index
i10 Index
Citation Counts
4
0
29
Rankings
Ranking Based On Selection: 77
Ghasem Ebrahimi
Metrics
H-Index
i10 Index
Citation Counts
3
3
66
Electroplating
Nanocoatings
Corrosion protection
Rankings
Ranking Based On Selection: 78
Hossein Beyrami
Metrics
H-Index
i10 Index
Citation Counts
3
3
55
Iterative Methods
Interval Analysis
Reproducing Kernel Spaces
Integral Equations
Rankings
Ranking Based On Selection: 79
Hossein Zangeneh
Metrics
H-Index
i10 Index
Citation Counts
3
2
65
Reservoir Engineering
Carbon Capture and Storage
Rankings
Ranking Based On Selection: 80
Amin Rezaei Namin
Metrics
H-Index
i10 Index
Citation Counts
3
1
28
Interfacial Tension
Hydrogen Storage
Ionic Liquids
Asphaltene
Nanotechnology
Rankings
Ranking Based On Selection: 82
Hajar Farshidi
Metrics
H-Index
i10 Index
Citation Counts
2
1
22
Rankings
Ranking Based On Selection: 83
Mortaza Afshari
Metrics
H-Index
i10 Index
Citation Counts
2
1
22
Analytical Chemistry
Electrochemistry
Corrosion
Material Science
Water and waste water
Rankings
Ranking Based On Selection: 85
ابراهیم علایی
Metrics
H-Index
i10 Index
Citation Counts
2
0
13
BIOREMEDIATION
PHYTOREMEDIATION
ENVIRONMENTAL SCIENCE
Rankings
Ranking Based On Selection: 86
Sajad Karimi Mazidi
Metrics
H-Index
i10 Index
Citation Counts
1
1
29
Process Modeling
Optimization
Simulation
Rankings
Ranking Based On Selection: 87
Borhan Shahmohammadi
Metrics
H-Index
i10 Index
Citation Counts
1
0
9
Low salinity polymer flooding
Gel polymer
Fluid loss control
Shale inhibition
Rankings
Ranking Based On Selection: 88
Sahar Zargari
Metrics
H-Index
i10 Index
Citation Counts
1
0
6
Data Analysis
AI
Network security
Big Data
Data Mining
Rankings
Ranking Based On Selection: 89
Mohammad Shokouhi
Metrics
H-Index
i10 Index
Citation Counts
0
0
0