Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Anthony Cemaluk Egbuonu|C A.C. Egbuonu, A.C.C. Egbuonu, Cemaluk A.C.E.](https://cdn.adscientificindex.com/pictures/ce/3874157.jpg)
Biochemistry
Nutritional Toxicology
Pharmacology
Epidemiology of Metabolic diseases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
27
0.519
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Stevens Odoemelam](/user/assets/images/profile/no-profile-photo.png)
Analytical Chemistry
Environmental Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
26
0.578
* Total i10 IndexRankings
Ranking Based On Selection: 3
![James Amaku|FRIDAY JAMES AMAKU](https://cdn.adscientificindex.com/pictures/43/4596920.jpg)
Adsorption
computational chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
21
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Ie Otuokere|IFEANYI E.OTUOKERE, IFEANYI EDOZIE OTUOKERE](https://cdn.adscientificindex.com/pictures/4d/4530862.jpg)
chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
9
0.563
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Jude Nnaji](https://cdn.adscientificindex.com/pictures/5f/4309903.jpg)
Analytical chemistry
fisheries
Environmental Assessment
Remediation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Francis Kalu Ekuma](https://cdn.adscientificindex.com/pictures/1d/4530865.jpg)
Adsorption
Corrosion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Johnbull Echeme](https://cdn.adscientificindex.com/pictures/9b/4531292.jpg)
organic/medicinal chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Helen. O Chukwuemeka-Okorie](https://cdn.adscientificindex.com/pictures/c2/4531615.jpg)
Adsorption
material chemistry
wastewater treatment
environmental chemistry
nano adsorbents
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Okoro Innocent A,](https://cdn.adscientificindex.com/pictures/9a/4531291.jpg)
Analytical/Environmental Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Friday Chisom](https://cdn.adscientificindex.com/pictures/4b/4907143.jpg)
Organic/Polymer Chemistry
Natural Products Chemistry
and Nanomaterials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
* Total i10 IndexRankings
Ranking Based On Selection: 11
![Moses O. Ekeoma](https://cdn.adscientificindex.com/pictures/a7/4594858.jpg)
Physical Chemistry
Heterogenous Catalysts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Nikechukwu Nike Omosun](https://cdn.adscientificindex.com/pictures/52/4915007.jpg)
Organometallic Chemistry
Catalysis
Green Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Christian Odih](https://cdn.adscientificindex.com/pictures/22/5066068.jpg)
Ogarnic synthesis/industrial chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Stella Ufearoh](https://cdn.adscientificindex.com/pictures/bc/5032719.jpg)
Industrial/Inorganic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Ubani, Co L](https://cdn.adscientificindex.com/pictures/dc/5033125.jpg)
Inorganic Synthesis
Corrosion and adsorption.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Anthony Cemaluk Egbuonu|C A.C. Egbuonu, A.C.C. Egbuonu, Cemaluk A.C.E.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
27
0.519
Biochemistry
Nutritional Toxicology
Pharmacology
Epidemiology of Metabolic diseases
Stevens Odoemelam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
26
0.578
Analytical Chemistry
Environmental Chemistry
James Amaku|FRIDAY JAMES AMAKU
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
21
1.000
Adsorption
computational chemistry
Ie Otuokere|IFEANYI E.OTUOKERE, IFEANYI EDOZIE OTUOKERE
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
9
0.563
Jude Nnaji
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
Analytical chemistry
fisheries
Environmental Assessment
Remediation
Francis Kalu Ekuma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
Johnbull Echeme
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
Helen. O Chukwuemeka-Okorie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Adsorption
material chemistry
wastewater treatment
environmental chemistry
nano adsorbents
Okoro Innocent A,
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
Analytical/Environmental Chemistry
Friday Chisom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Organic/Polymer Chemistry
Natural Products Chemistry
and Nanomaterials
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Moses O. Ekeoma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Physical Chemistry
Heterogenous Catalysts
Nikechukwu Nike Omosun
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Organometallic Chemistry
Catalysis
Green Chemistry
Christian Odih
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Ogarnic synthesis/industrial chemistry
Stella Ufearoh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Ubani, Co L
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Inorganic Synthesis
Corrosion and adsorption.