Citation Rankings
Highly Cited Researchers
Natural Sciences / Chemical Sciences Highly Cited Researchers 62 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
Analytical and Environmental Chemistry
Water pollutants
Water and wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,513
10,430
0.632
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,253
8,168
0.616
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Polymer nanocomposites
Polymer Composites
conductive polymer composites
natural fiber composites
conductive ink
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,397
6,450
0.620
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Polymer Composites
Natural fibre-based Composites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,925
3,353
0.376
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Fuel gas
Acid gas capture
Gas purification
Pressure swing adsorption
Micro-mesoporous materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,626
3,133
0.473
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Photofunctional Materials
Photocatalysis
Nanoporous_Materials
Electrochemical Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,615
5,230
0.791
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Chemistry
Green Chemistry
Medicinal Chemistry
Synthesis
Natural products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,812
2,818
0.485
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Water pollution
Visible light active photocatalysis
Advanced Oxidation Process
Adsorption
Regeneration and reusability study
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,521
3,367
0.610
* Total Citation Counts Rankings
Ranking Based On Selection: 9
bioactive peptide
polysaccharide
pectin
antidiabetic
antihypertensive
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,451
3,941
0.723
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Organometallic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,855
1,688
0.438
* Total Citation Counts Rankings
Ranking Based On Selection: 11
liquid crystals
coordination chemistry
smart materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,726
1,192
0.320
* Total Citation Counts Rankings
Ranking Based On Selection: 12
polymer inclusion membrane
ionic liquids
pollutant
chitosan
electrode
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,346
2,767
0.827
* Total Citation Counts Rankings
Ranking Based On Selection: 13
polymer
composite
Hybrid Composite
Nano filler composite
advance material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,930
2,420
0.826
* Total Citation Counts Rankings
Ranking Based On Selection: 14
polymer biomaterials
polymer scaffolds
polymer drug delivery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,889
2,610
0.903
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Fibres
Composites
Material Science and Engineering
Circular Economy
Polymer Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,846
2,450
0.861
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Polymer Science and Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,808
1,060
0.377
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Material Synthesis
Environmental Remediation
Photocatalytic Materials
Titanium Dioxide
Biosorbent
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,711
2,127
0.785
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Heterogeneous catalyst
nanomaterials
Biofuels
mesoporous silica
graphene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,530
2,084
0.824
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Polymer Composites
Rubber Technology
Polymer Degradation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,527
1,351
0.535
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Chemistry
fluorine chemistry
inorganic synthesis
hybrid materials
materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,454
914
0.372
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Polymer composites cellulose cellulose derivative nanocellulose Pulp and Paper
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,349
1,977
0.842
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Science/Chemistry Education
Green Chemistry in Education
Environmental Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,214
1,544
0.697
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Analytical Chemistry
Green Extraction
Method Development and Validation
Pharmaceutical Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,200
1,936
0.880
* Total Citation Counts Rankings
Ranking Based On Selection: 24
organic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,979
1,368
0.691
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Analytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,978
1,419
0.717
* Total Citation Counts Rankings
Rankings
53,950
112
20
Ranking Based On Selection: 1
Mohd Rafatullah
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,513
10,430
0.632
Analytical and Environmental Chemistry
Water pollutants
Water and wastewater treatment
* Total Citation Counts Rankings
Rankings
71,923
174
27
Ranking Based On Selection: 2
Afidah Abdul Rahim
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,253
8,168
0.616
* Total Citation Counts Rankings
Rankings
96,336
263
38
Ranking Based On Selection: 3
Mariatti Jaafar
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,397
6,450
0.620
Polymer nanocomposites
Polymer Composites
conductive polymer composites
natural fiber composites
conductive ink
* Total Citation Counts Rankings
Rankings
114,717
336
51
Ranking Based On Selection: 4
Azhar Bin Abu Bakar
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,925
3,353
0.376
Polymer Composites
Natural fibre-based Composites
* Total Citation Counts Rankings
Rankings
158,253
551
75
Ranking Based On Selection: 5
Mohd Roslee Othman
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,626
3,133
0.473
Fuel gas
Acid gas capture
Gas purification
Pressure swing adsorption
Micro-mesoporous materials
* Total Citation Counts Rankings
Rankings
158,504
554
76
Ranking Based On Selection: 6
Noor Haida Mohd Kaus
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,615
5,230
0.791
Photofunctional Materials
Photocatalysis
Nanoporous_Materials
Electrochemical Technology
* Total Citation Counts Rankings
Rankings
180,764
682
88
Ranking Based On Selection: 7
Hasnah Osman
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,812
2,818
0.485
Chemistry
Green Chemistry
Medicinal Chemistry
Synthesis
Natural products
* Total Citation Counts Rankings
Rankings
189,989
739
98
Ranking Based On Selection: 8
Rohana Adnan
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,521
3,367
0.610
Water pollution
Visible light active photocatalysis
Advanced Oxidation Process
Adsorption
Regeneration and reusability study
* Total Citation Counts Rankings
Rankings
192,384
749
100
Ranking Based On Selection: 9
Chee Yuen Gan
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,451
3,941
0.723
bioactive peptide
polysaccharide
pectin
antidiabetic
antihypertensive
* Total Citation Counts Rankings
Rankings
266,179
1,203
151
Ranking Based On Selection: 10
Rosenani A Haque
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,855
1,688
0.438
* Total Citation Counts Rankings
Rankings
274,106
1,258
159
Ranking Based On Selection: 11
Guan Yeow Yeap
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,726
1,192
0.320
liquid crystals
coordination chemistry
smart materials
* Total Citation Counts Rankings
Rankings
300,699
1,488
181
Ranking Based On Selection: 12
Faiz Bukhari Mohd Suah
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,346
2,767
0.827
polymer inclusion membrane
ionic liquids
pollutant
chitosan
electrode
* Total Citation Counts Rankings
Rankings
335,540
1,725
212
Ranking Based On Selection: 13
Mohammed Nasir
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,930
2,420
0.826
polymer
composite
Hybrid Composite
Nano filler composite
advance material
* Total Citation Counts Rankings
Rankings
339,370
1,750
216
Ranking Based On Selection: 14
Zuratul Ain Abdul Hamid
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,889
2,610
0.903
polymer biomaterials
polymer scaffolds
polymer drug delivery
* Total Citation Counts Rankings
Rankings
343,538
1,777
219
Ranking Based On Selection: 15
John Olabode Akindoyo
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,846
2,450
0.861
Fibres
Composites
Material Science and Engineering
Circular Economy
Polymer Engineering
* Total Citation Counts Rankings
Rankings
347,360
1,818
223
Ranking Based On Selection: 16
Azlan Ariffin
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,808
1,060
0.377
* Total Citation Counts Rankings
Rankings
357,278
1,889
231
Ranking Based On Selection: 17
Sumiyyah Sabar
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,711
2,127
0.785
Material Synthesis
Environmental Remediation
Photocatalytic Materials
Titanium Dioxide
Biosorbent
* Total Citation Counts Rankings
Rankings
377,119
2,071
247
Ranking Based On Selection: 18
Jimmy Nelson Appaturi
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,530
2,084
0.824
Heterogeneous catalyst
nanomaterials
Biofuels
mesoporous silica
graphene
* Total Citation Counts Rankings
Rankings
377,492
2,075
248
Ranking Based On Selection: 19
Nadras Othman
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,527
1,351
0.535
Polymer Composites
Rubber Technology
Polymer Degradation
* Total Citation Counts Rankings
Rankings
386,183
2,167
257
Ranking Based On Selection: 20
Wan Ahmad Kamil Mahmood
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,454
914
0.372
Chemistry
fluorine chemistry
inorganic synthesis
hybrid materials
materials
* Total Citation Counts Rankings
Rankings
399,062
2,281
269
Ranking Based On Selection: 21
Owolabi Folahan Abdulwahab Taiwo
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,349
1,977
0.842
Polymer composites cellulose cellulose derivative nanocellulose Pulp and Paper
* Total Citation Counts Rankings
Rankings
416,799
2,450
288
Ranking Based On Selection: 22
Mageswary Karpudewan
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,214
1,544
0.697
Science/Chemistry Education
Green Chemistry in Education
Environmental Education
* Total Citation Counts Rankings
Rankings
418,746
2,467
289
Ranking Based On Selection: 23
Noorfatimah Yahaya
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,200
1,936
0.880
Analytical Chemistry
Green Extraction
Method Development and Validation
Pharmaceutical Analysis
* Total Citation Counts Rankings
Rankings
452,144
2,765
317
Ranking Based On Selection: 24
Melati Khairuddean
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,979
1,368
0.691
* Total Citation Counts Rankings
Rankings
452,319
2,769
18
Ranking Based On Selection: 25
Che Wan Zanariah Che Wan Ngah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,978
1,419
0.717