Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 772 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Corrosion Electrochemistry
Electrochemical Technology
Membrane Transpor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,191
6,091
0.462
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Animal health
Animal production
Animal nutrition
Livestock extensio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,016
2,002
0.399
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Animal Physiology
Meta-analysis
Medicinal plants
Modellin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,818
1,657
0.588
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Metal Speciation
Ecotoxicity
Soil-water-Air you
Impact Assessment
Microplastics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,340
2,109
0.901
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Renewable Energy
Solar Thermal Energy Engineering
Solar Refrigeration
Environmental Pollution & Control System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
726
0.408
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Geo-informatics
Environmental Geosciences
Geothermal Energy
Exploration Geophysic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,685
1,401
0.831
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Medicinal plants
Biomarkers of diseases
analytical biochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,603
672
0.419
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Applied Microbiology (Food and Industrial Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,517
860
0.567
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Thin films
Materials Science
Solid State Physics
Solar Cells
Semiconductor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,511
844
0.559
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
microbiology
biotechnology
antimicrobial properties of plant extracts
indigenous food fermentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,479
723
0.489
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Biochemical Toxicology
Nutrition
Environmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
642
0.465
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Nanocomposite coatings
corrosion science and protection
tribology
polymer science and engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,376
1,352
0.983
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Soil Survey and Land Use Plannin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,363
497
0.365
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Animal Nutrition
Feeding Systems
Non-conventional Feed Ingredients and Additive
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,308
528
0.404
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Polymer nanocomposites
Functional Protective Coatings
Corrosion & Corrosion Protection
Polymer Waste Management and Marine P
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,238
913
0.737
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Medicinal plant research
Chemoprevention
Environment
Raw materials
Toxicolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,121
475
0.424
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Lesser known
Non conventional food source
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,112
567
0.510
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Polymer materials
Surface coatings
Corrosion inhibition
Molecular Simulatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,096
940
0.858
* Total Citation Counts Rankings
Ranking Based On Selection: 19
RURAL SOCIOLOG
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,087
653
0.601
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Hydrogeology
Environmental Geology
Hydrology
Machine Learning
Artificial intelligenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,083
1,046
0.966
* Total Citation Counts Rankings
Ranking Based On Selection: 21
construction
construction materials and structura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,071
650
0.607
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Connected Systems
Cloud Engineering
Networked Robotics
Smart Infrastructures
Modellin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,067
668
0.626
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Novel functional food ingredients
Food product development
Brewing and Beverage Technolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,057
1,019
0.964
* Total Citation Counts Rankings
Ranking Based On Selection: 24
agricultural engineering
farm power and machinery
farm processing and storage
renewable energ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,026
507
0.494
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Polymer Composites
Rubber Blends
Biomaterials
Tissue Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,020
829
0.813
* Total Citation Counts Rankings
Rankings
75,333
37
1
Ranking Based On Selection: 1
Emeka Oguzie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,191
6,091
0.462
Corrosion Electrochemistry
Electrochemical Technology
Membrane Transpor
* Total Citation Counts Rankings
Rankings
216,681
189
2
Ranking Based On Selection: 2
Ifeanyi Charles Okoli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,016
2,002
0.399
Animal health
Animal production
Animal nutrition
Livestock extensio
* Total Citation Counts Rankings
Rankings
358,199
514
3
Ranking Based On Selection: 3
Ogbuewu Ifeanyi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,818
1,657
0.588
Animal Physiology
Meta-analysis
Medicinal plants
Modellin
* Total Citation Counts Rankings
Rankings
413,174
682
4
Ranking Based On Selection: 4
Verla Evelyn Ngozi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,340
2,109
0.901
Metal Speciation
Ecotoxicity
Soil-water-Air you
Impact Assessment
Microplastics
* Total Citation Counts Rankings
Rankings
501,645
1,040
5
Ranking Based On Selection: 5
Emmanuel Enyioma Anyanwu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
726
0.408
Renewable Energy
Solar Thermal Energy Engineering
Solar Refrigeration
Environmental Pollution & Control System
* Total Citation Counts Rankings
Rankings
520,178
1,138
6
Ranking Based On Selection: 6
Alexander Iheanyichukwu Opara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,685
1,401
0.831
Geo-informatics
Environmental Geosciences
Geothermal Energy
Exploration Geophysic
* Total Citation Counts Rankings
Rankings
537,007
1,245
7
Ranking Based On Selection: 7
Chidi Uzoma Igwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,603
672
0.419
Medicinal plants
Biomarkers of diseases
analytical biochemistr
* Total Citation Counts Rankings
Rankings
556,115
1,348
8
Ranking Based On Selection: 8
Wesley Braide
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,517
860
0.567
Applied Microbiology (Food and Industrial Microbiology
* Total Citation Counts Rankings
Rankings
557,545
1,357
9
Ranking Based On Selection: 9
Obi Kingsley Echendu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,511
844
0.559
Thin films
Materials Science
Solid State Physics
Solar Cells
Semiconductor
* Total Citation Counts Rankings
Rankings
564,834
1,386
10
Ranking Based On Selection: 10
Chika C. Ogueke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,479
723
0.489
microbiology
biotechnology
antimicrobial properties of plant extracts
indigenous food fermentation
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Powerful Insights + Smart Membership = Institutional Success
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* Total Citation Counts Rankings
Rankings
589,150
1,495
11
Ranking Based On Selection: 11
Ujowundu Cosmas Onyekachi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
642
0.465
Biochemical Toxicology
Nutrition
Environmen
* Total Citation Counts Rankings
Rankings
589,982
1,501
12
Ranking Based On Selection: 12
Paul Chinonso Uzoma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,376
1,352
0.983
Nanocomposite coatings
corrosion science and protection
tribology
polymer science and engineerin
* Total Citation Counts Rankings
Rankings
593,518
1,524
13
Ranking Based On Selection: 13
Onweremadu, Emmanuel Uzoma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,363
497
0.365
Soil Survey and Land Use Plannin
* Total Citation Counts Rankings
Rankings
608,226
1,616
14
Ranking Based On Selection: 14
Edeheudim B.Etuk|Edehe B. Etuk, E. B. Etuk
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,308
528
0.404
Animal Nutrition
Feeding Systems
Non-conventional Feed Ingredients and Additive
* Total Citation Counts Rankings
Rankings
627,583
1,748
15
Ranking Based On Selection: 15
Innocent O. Arukalam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,238
913
0.737
Polymer nanocomposites
Functional Protective Coatings
Corrosion & Corrosion Protection
Polymer Waste Management and Marine P
* Total Citation Counts Rankings
Rankings
663,332
2,030
16
Ranking Based On Selection: 16
Chinwe Sylvanus Alisi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,121
475
0.424
Medicinal plant research
Chemoprevention
Environment
Raw materials
Toxicolog
* Total Citation Counts Rankings
Rankings
666,174
2,056
17
Ranking Based On Selection: 17
Justina Nwosu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,112
567
0.510
* Total Citation Counts Rankings
Rankings
671,195
2,099
18
Ranking Based On Selection: 18
Simeon Chukwudozie Nwanonenyi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,096
940
0.858
Polymer materials
Surface coatings
Corrosion inhibition
Molecular Simulatio
* Total Citation Counts Rankings
Rankings
674,371
2,141
19
Ranking Based On Selection: 19
Chikaire, Jonadab Ubochioma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,087
653
0.601
* Total Citation Counts Rankings
Rankings
675,614
2,153
20
Ranking Based On Selection: 20
Obinna Chigoziem Akakuru
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,083
1,046
0.966
Hydrogeology
Environmental Geology
Hydrology
Machine Learning
Artificial intelligenc
* Total Citation Counts Rankings
Rankings
679,757
2,211
21
Ranking Based On Selection: 21
Igbojiaku Anthony Ugonna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,071
650
0.607
* Total Citation Counts Rankings
Rankings
681,060
2,228
22
Ranking Based On Selection: 22
Kennedy Chinedu Okafor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,067
668
0.626
Connected Systems
Cloud Engineering
Networked Robotics
Smart Infrastructures
Modellin
* Total Citation Counts Rankings
Rankings
684,365
2,267
23
Ranking Based On Selection: 23
Ofoedu, Chigozie E.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,057
1,019
0.964
Novel functional food ingredients
Food product development
Brewing and Beverage Technolog
* Total Citation Counts Rankings
Rankings
695,512
2,392
24
Ranking Based On Selection: 24
Sabbas Asoegwu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,026
507
0.494
agricultural engineering
farm power and machinery
farm processing and storage
renewable energ
* Total Citation Counts Rankings
Rankings
697,425
2,424
25
Ranking Based On Selection: 25
Henry Chinedu Obasi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,020
829
0.813
Polymer Composites
Rubber Blends
Biomaterials
Tissue Engineerin