Citation Rankings
Highly Cited Researchers
Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Biomass Conversion
Green Processes and Material Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,170
14,331
0.748
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Renewable energy
biomass
biodiesel
bioethanol
microalgae
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,876
11,195
0.753
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Environmental Science and Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,008
12,494
0.960
* Total Citation Counts Rankings
Ranking Based On Selection: 4
REE detection
H2S conversion
Ionic Liquids
MOF
Li-ion Battery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,399
7,282
0.700
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Ionic liquids
Biopolymer and Polymer Composite ...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,796
6,538
0.667
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Process Safety
CO2 Capture
Separation Processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,669
7,146
0.739
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Ionic liquids
biotechnology
environment
pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,422
6,938
0.736
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Chemical Engineering
Catalysis
Biomass
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,409
6,240
0.663
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Analytical chemistry
green separation methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,869
4,421
0.498
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Chemical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,598
4,118
0.542
* Total Citation Counts Rankings
Ranking Based On Selection: 11
concrete technology and materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,415
6,003
0.810
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Artificial Intelligence
Control Automation & Robotics
Image and Signal Processing
Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,327
4,777
0.652
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Structural Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,211
6,104
0.846
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Energy
Thermo-fluids
Mechanical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,661
4,984
0.748
* Total Citation Counts Rankings
Ranking Based On Selection: 15
corrosion protection by coating
hydrogen permeation of buried pipeline
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,327
2,725
0.431
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Structural Dynamics
Stochastic Processes
Offshore Engineering
Energy Transition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,270
5,590
0.892
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Civil Engineering
Project Management
Digital Twin
Automated Monitoring
and Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,240
6,149
0.985
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Bio-Medical Engineering
EEG
FNIR
Signal Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,206
4,537
0.731
* Total Citation Counts Rankings
Ranking Based On Selection: 19
concrete technology
geopolymer concrete
cement replacement materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,883
4,312
0.733
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Chemical Engineering
Membrane
Absorption
Process Modeling and Scale-up
Computational Fluid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,806
4,359
0.751
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Wastewater Treatment
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,730
4,432
0.773
* Total Citation Counts Rankings
Ranking Based On Selection: 22
CO2 Gas Hydrate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,627
4,762
0.846
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,489
2,112
0.385
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Intumescent Fire Retardant Coating
nano composite for thermal management
Energy storage materials
bio medical devices
Polym
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,355
3,859
0.721
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Thermofluids
Energy Systems
Hybrid solar thermal
Two phase flows
CFD.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,236
4,086
0.780
* Total Citation Counts Rankings
Rankings
42,925
79
1
Ranking Based On Selection: 1
Ir Suzana Yusup
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,170
14,331
0.748
* Total Citation Counts Rankings
Rankings
60,402
133
2
Ranking Based On Selection: 2
Man Kee Lam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,876
11,195
0.753
Renewable energy
biomass
biodiesel
bioethanol
microalgae
* Total Citation Counts Rankings
Rankings
71,886
171
3
Ranking Based On Selection: 3
Jun Wei Lim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,008
12,494
0.960
Environmental Science and Engineering
* Total Citation Counts Rankings
Rankings
94,159
252
4
Ranking Based On Selection: 4
Mohamad Azmi Bustam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,399
7,282
0.700
REE detection
H2S conversion
Ionic Liquids
MOF
Li-ion Battery
* Total Citation Counts Rankings
Rankings
100,836
275
5
Ranking Based On Selection: 5
Zakaria Man
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,796
6,538
0.667
Ionic liquids
Biopolymer and Polymer Composite ...
* Total Citation Counts Rankings
Rankings
102,358
285
6
Ranking Based On Selection: 6
Azmi Mohd Shariff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,669
7,146
0.739
Process Safety
CO2 Capture
Separation Processes
* Total Citation Counts Rankings
Rankings
105,398
296
7
Ranking Based On Selection: 7
Muhammad Moniruzzaman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,422
6,938
0.736
Ionic liquids
biotechnology
environment
pharmaceutics
* Total Citation Counts Rankings
Rankings
105,548
297
8
Ranking Based On Selection: 8
Yoshimitsu Uemura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,409
6,240
0.663
Chemical Engineering
Catalysis
Biomass
* Total Citation Counts Rankings
Rankings
112,858
323
9
Ranking Based On Selection: 9
Bahruddin Saad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,869
4,421
0.498
Analytical chemistry
green separation methods
* Total Citation Counts Rankings
Rankings
134,046
429
10
Ranking Based On Selection: 10
Murugesan Thanabalan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,598
4,118
0.542
* Total Citation Counts Rankings
Rankings
137,630
447
11
Ranking Based On Selection: 11
Nasir Shafiq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,415
6,003
0.810
concrete technology and materials
* Total Citation Counts Rankings
Rankings
139,411
453
12
Ranking Based On Selection: 12
Irraivan Elamvazuthi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,327
4,777
0.652
Artificial Intelligence
Control Automation & Robotics
Image and Signal Processing
Energy
* Total Citation Counts Rankings
Rankings
141,795
463
13
Ranking Based On Selection: 13
Bashar S. Mohammed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,211
6,104
0.846
* Total Citation Counts Rankings
Rankings
154,033
527
14
Ranking Based On Selection: 14
Shaharin A Sulaiman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,661
4,984
0.748
Energy
Thermo-fluids
Mechanical Engineering
* Total Citation Counts Rankings
Rankings
162,452
571
15
Ranking Based On Selection: 15
Noor Ain Abd Rahman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,327
2,725
0.431
corrosion protection by coating
hydrogen permeation of buried pipeline
* Total Citation Counts Rankings
Rankings
163,984
583
16
Ranking Based On Selection: 16
MS Liew
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,270
5,590
0.892
Structural Dynamics
Stochastic Processes
Offshore Engineering
Energy Transition
* Total Citation Counts Rankings
Rankings
164,775
590
17
Ranking Based On Selection: 17
Wesam Alaloul
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,240
6,149
0.985
Civil Engineering
Project Management
Digital Twin
Automated Monitoring
and Sustainability
* Total Citation Counts Rankings
Rankings
165,735
597
18
Ranking Based On Selection: 18
Naufal M Saad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,206
4,537
0.731
Bio-Medical Engineering
EEG
FNIR
Signal Processing
* Total Citation Counts Rankings
Rankings
174,720
646
19
Ranking Based On Selection: 19
Mf Nuruddin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,883
4,312
0.733
concrete technology
geopolymer concrete
cement replacement materials
* Total Citation Counts Rankings
Rankings
177,052
660
20
Ranking Based On Selection: 20
Lau Kok Keong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,806
4,359
0.751
Chemical Engineering
Membrane
Absorption
Process Modeling and Scale-up
Computational Fluid
* Total Citation Counts Rankings
Rankings
179,382
669
21
Ranking Based On Selection: 21
Shamsul Rahman Mohamed Kutty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,730
4,432
0.773
Wastewater Treatment
Environmental Engineering
* Total Citation Counts Rankings
Rankings
182,707
688
22
Ranking Based On Selection: 22
Bhajan Lal Rahanu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,627
4,762
0.846
* Total Citation Counts Rankings
Rankings
187,074
711
23
Ranking Based On Selection: 23
Malay Chaudhuri
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,489
2,112
0.385
Environmental Engineering
* Total Citation Counts Rankings
Rankings
191,636
735
24
Ranking Based On Selection: 24
Faiz Ahmad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,355
3,859
0.721
Intumescent Fire Retardant Coating
nano composite for thermal management
Energy storage materials
bio medical devices
Polym
* Total Citation Counts Rankings
Rankings
195,922
761
25
Ranking Based On Selection: 25
Hussain H Al Kayiem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,236
4,086
0.780
Thermofluids
Energy Systems
Hybrid solar thermal
Two phase flows
CFD.