Citation Rankings
Highly Cited Researchers
Natural Sciences / Chemical Sciences Highly Cited Researchers 52 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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
Natural Product Chemistry
Circular Dichroism Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,510
5,474
0.438
* Total Citation Counts Rankings
Ranking Based On Selection: 2
chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,455
4,870
0.576
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Structural Organic Chemistry-Metabolomics-Pharmaceutical Organic chemistry-Medicinal Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,384
4,731
0.741
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Polymer electrolytes
Lithium Ion Batteries
Supercapacitors and Solar Cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,398
2,064
0.469
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Synthetic Organic Chemistry/Medicinal Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,445
2,237
0.649
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Catalysis
Photocatalysis
Renewable Energy
Biodiesel & Hydrogen Production
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,317
2,836
0.855
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Phytochemistry
Natural Product Chemistry
Bio-activity of compounds....
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,602
1,354
0.520
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Coal liquefaction & Pyrolysis
Supercritical extraction
Energy & Green chemistry
Activated materials
Coal & Biomass blends
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,507
1,784
0.712
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Electrospinning of Nanofiber
Membrane Separation
Photocatalysis
Adsorption
Wastewater Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,505
2,247
0.897
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Heterojunction
Z-Scheme
immobilization
water treatment technology
titanium dioxide
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,127
1,722
0.810
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Nanomaterials
Nanocatalysis
Biofuel
Renewable fuel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,006
1,817
0.906
* Total Citation Counts Rankings
Ranking Based On Selection: 12
organic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,967
673
0.342
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Polymer Blends
Polymer Characterization
Polymer Electrolytes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,880
1,027
0.546
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Supramolecular Chemistry
Polymer Networks and Hydrogels
Rheology
Material Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,662
1,057
0.636
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Phytochemistry
Chiroptical methods
Biological Activities of Medicinal Plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,433
734
0.512
* Total Citation Counts Rankings
Ranking Based On Selection: 16
catalysis
reaction engineering
pyrolysis
advanced oxidation process
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,421
969
0.682
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Adsorption
Catalysis
Heterogeneous catalyst
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,390
754
0.542
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Fenton reaction
graphene oxide based nanocomposite
nanocomposite
material chemistry
wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,321
572
0.433
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Phytochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,220
553
0.453
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Catalysis
Material Synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,012
596
0.589
* Total Citation Counts Rankings
Ranking Based On Selection: 21
solid electrolyte
proton conductor
materials chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
988
716
0.725
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Coordination
Corrosion
Bioactivity
Catalysis
Sensor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
940
488
0.519
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Material Chemistry
Clay minerals
Polymer and Magnetic composite
Wastewater
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
886
715
0.807
* Total Citation Counts Rankings
Ranking Based On Selection: 24
CHEMISTRY
ENVIRONMENTAL
CATALYST
ENGINEERING
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
876
538
0.614
* Total Citation Counts Rankings
Ranking Based On Selection: 25
polymer electrolytes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
724
357
0.493
* Total Citation Counts Rankings
Rankings
77,054
192
5
Ranking Based On Selection: 1
Rohaya Ahmad
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,510
5,474
0.438
Natural Product Chemistry
Circular Dichroism Studies
* Total Citation Counts Rankings
Rankings
121,614
371
14
Ranking Based On Selection: 2
Nor Hadiani Ismail
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,455
4,870
0.576
* Total Citation Counts Rankings
Rankings
164,150
599
22
Ranking Based On Selection: 3
Syed Adnan Ali Shah
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,384
4,731
0.741
Structural Organic Chemistry-Metabolomics-Pharmaceutical Organic chemistry-Medicinal Chemistry
* Total Citation Counts Rankings
Rankings
235,663
1,007
39
Ranking Based On Selection: 4
AB Malik Marwan Ali
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,398
2,064
0.469
Polymer electrolytes
Lithium Ion Batteries
Supercapacitors and Solar Cells
* Total Citation Counts Rankings
Rankings
292,741
1,423
55
Ranking Based On Selection: 5
Syahrul Imran Abu Bakar
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,445
2,237
0.649
Synthetic Organic Chemistry/Medicinal Chemistry
* Total Citation Counts Rankings
Rankings
302,246
1,499
59
Ranking Based On Selection: 6
Mohd Lokman Ibrahim
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,317
2,836
0.855
Catalysis
Photocatalysis
Renewable Energy
Biodiesel & Hydrogen Production
* Total Citation Counts Rankings
Rankings
368,228
1,998
74
Ranking Based On Selection: 7
Norizan Ahmat
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,602
1,354
0.520
Phytochemistry
Natural Product Chemistry
Bio-activity of compounds....
* Total Citation Counts Rankings
Rankings
379,019
2,092
77
Ranking Based On Selection: 8
Mohd Azlan Mohd Ishak
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,507
1,784
0.712
Coal liquefaction & Pyrolysis
Supercritical extraction
Energy & Green chemistry
Activated materials
Coal & Biomass blends
* Total Citation Counts Rankings
Rankings
379,239
2,095
78
Ranking Based On Selection: 9
Nur Hashimah Alias
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,505
2,247
0.897
Electrospinning of Nanofiber
Membrane Separation
Photocatalysis
Adsorption
Wastewater Treatment
* Total Citation Counts Rankings
Rankings
428,517
2,553
98
Ranking Based On Selection: 10
Wi Nawawi Wan Izhan Nawawi
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,127
1,722
0.810
Heterojunction
Z-Scheme
immobilization
water treatment technology
titanium dioxide
* Total Citation Counts Rankings
Rankings
446,887
2,727
109
Ranking Based On Selection: 11
Mohd Sufri Mastuli|M. S. Mastuli
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,006
1,817
0.906
Nanomaterials
Nanocatalysis
Biofuel
Renewable fuel
* Total Citation Counts Rankings
Rankings
453,252
2,788
119
Ranking Based On Selection: 12
Ahmad Sazali Hamzah
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,967
673
0.342
* Total Citation Counts Rankings
Rankings
467,747
2,901
127
Ranking Based On Selection: 13
Chin Han Chan
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,880
1,027
0.546
Polymer Blends
Polymer Characterization
Polymer Electrolytes
* Total Citation Counts Rankings
Rankings
508,648
3,294
152
Ranking Based On Selection: 14
Cindy SY Tan
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,662
1,057
0.636
Supramolecular Chemistry
Polymer Networks and Hydrogels
Rheology
Material Chemistry
* Total Citation Counts Rankings
Rankings
559,044
3,806
192
Ranking Based On Selection: 15
Rohaya Ahmad
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,433
734
0.512
Phytochemistry
Chiroptical methods
Biological Activities of Medicinal Plants
* Total Citation Counts Rankings
Rankings
561,854
3,829
194
Ranking Based On Selection: 16
Hamizura Hassan
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,421
969
0.682
catalysis
reaction engineering
pyrolysis
advanced oxidation process
* Total Citation Counts Rankings
Rankings
569,646
3,914
201
Ranking Based On Selection: 17
Rasyidah Alrozi
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,390
754
0.542
Adsorption
Catalysis
Heterogeneous catalyst
* Total Citation Counts Rankings
Rankings
587,548
4,107
216
Ranking Based On Selection: 18
Nor Aida Zubir
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,321
572
0.433
Fenton reaction
graphene oxide based nanocomposite
nanocomposite
material chemistry
wastewater treatment
* Total Citation Counts Rankings
Rankings
615,484
4,414
240
Ranking Based On Selection: 19
Faridahanim Mohd Jaafar
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,220
553
0.453
* Total Citation Counts Rankings
Rankings
682,494
5,128
299
Ranking Based On Selection: 20
Jeyashelly Andas
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,012
596
0.589
* Total Citation Counts Rankings
Rankings
690,916
5,219
307
Ranking Based On Selection: 21
Nafisah Osman
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
988
716
0.725
solid electrolyte
proton conductor
materials chemistry
* Total Citation Counts Rankings
Rankings
708,882
5,415
329
Ranking Based On Selection: 22
Hadariah Bahron
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
940
488
0.519
Coordination
Corrosion
Bioactivity
Catalysis
Sensor
* Total Citation Counts Rankings
Rankings
730,019
5,654
359
Ranking Based On Selection: 23
Ruhaida Rusmin
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
886
715
0.807
Material Chemistry
Clay minerals
Polymer and Magnetic composite
Wastewater
* Total Citation Counts Rankings
Rankings
734,215
5,704
365
Ranking Based On Selection: 24
Mohibah Musa
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
876
538
0.614
CHEMISTRY
ENVIRONMENTAL
CATALYST
ENGINEERING
* Total Citation Counts Rankings
Rankings
800,723
6,340
447
Ranking Based On Selection: 25
Famiza Abdul Latif
Universiti Teknologi MARA
Shah Alam, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
724
357
0.493