Citation Rankings
Highly Cited Researchers
Engineering & Technology / Nanoscience and Nanotechnology Highly Cited Researchers 15 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
Advanced oxidation processes
Nanomaterial synthesis
Heterogeneous catalysis
Water treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,208
4,515
0.867
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Natural Organic Matter
Urban Water Cycle
Nanotechnology for Water Treatment
Drinking Water Treatment
Membrane Science and Te
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,750
3,494
0.932
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Nanotechnology
Water Treatment Chemistry
Carbon Nanostructured Materials
Heterostructured Materials
Membrane Science and Tec
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,501
2,547
0.728
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Energy storage hybrid-materials
Graphene-based Nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,809
2,069
0.737
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Nanomaterials
Chromatography
Environmental pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
807
771
0.955
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Nanotechnology
Nanocomposite
Catalysis
Wastewater treatment
Energy storage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
418
0.998
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Nanoelectronic materials
water treatments
hydrogen generation
energy storage
fuel cell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
298
242
0.812
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Polymers
nanocomposite membranes
metallic nanoparticles
water treatment
carbon nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
257
254
0.988
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Water
nanoscience
nanomaterials
micromodelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
255
183
0.718
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Homogeneous and Heterogeneous Catalysis
Nanotechnology
Materials Science
Wastewater Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
234
151
0.645
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Nanotechnology
membrane technology
water filtration
membrane fouling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233
179
0.768
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Nanomaterials
Polymers
Nanocomposites
Electrochemistry
Bio/sensors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
168
121
0.720
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Energy & Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
147
92
0.626
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Associate Professor in Josephson Effect
Microelectronics
Electronics
Embedded Systems
Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128
117
0.914
* Total Citation Counts Rankings
Ranking Based On Selection: 15
electroanalytical chemistry
nanomaterials
electrochemical detection and degradation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62
62
1.000
* Total Citation Counts Rankings
Rankings
201,150
834
21
Ranking Based On Selection: 1
Alex Kuvarega
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,208
4,515
0.867
Advanced oxidation processes
Nanomaterial synthesis
Heterogeneous catalysis
Water treatment
* Total Citation Counts Rankings
Rankings
272,553
1,180
26
Ranking Based On Selection: 2
Thabo Ti Nkambule
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,750
3,494
0.932
Natural Organic Matter
Urban Water Cycle
Nanotechnology for Water Treatment
Drinking Water Treatment
Membrane Science and Te
* Total Citation Counts Rankings
Rankings
289,215
1,265
30
Ranking Based On Selection: 3
Edward Nxumalo
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,501
2,547
0.728
Nanotechnology
Water Treatment Chemistry
Carbon Nanostructured Materials
Heterostructured Materials
Membrane Science and Tec
* Total Citation Counts Rankings
Rankings
347,213
1,578
38
Ranking Based On Selection: 4
Jack MJ Madito
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,809
2,069
0.737
Energy storage hybrid-materials
Graphene-based Nanomaterials
* Total Citation Counts Rankings
Rankings
764,702
3,981
157
Ranking Based On Selection: 5
Tmesgen Girma Kebede
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
807
771
0.955
Nanomaterials
Chromatography
Environmental pollution
* Total Citation Counts Rankings
Rankings
1,003,846
5,659
289
Ranking Based On Selection: 6
Ntakadzeni Madima
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
418
0.998
Nanotechnology
Nanocomposite
Catalysis
Wastewater treatment
Energy storage
* Total Citation Counts Rankings
Rankings
1,143,449
6,862
388
Ranking Based On Selection: 7
Olayemi Jola Fakayode
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
298
242
0.812
Nanoelectronic materials
water treatments
hydrogen generation
energy storage
fuel cell
* Total Citation Counts Rankings
Rankings
1,206,040
7,415
429
Ranking Based On Selection: 8
Lwazi Ndlwana
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
257
254
0.988
Polymers
nanocomposite membranes
metallic nanoparticles
water treatment
carbon nanomaterials
* Total Citation Counts Rankings
Rankings
1,209,921
7,452
433
Ranking Based On Selection: 9
Keletso Mphahlele
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
255
183
0.718
Water
nanoscience
nanomaterials
micromodelling
* Total Citation Counts Rankings
Rankings
1,246,998
7,777
468
Ranking Based On Selection: 10
Ali Kabeya Ilunga
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
234
151
0.645
Homogeneous and Heterogeneous Catalysis
Nanotechnology
Materials Science
Wastewater Treatment
* Total Citation Counts Rankings
Rankings
1,248,647
7,798
469
Ranking Based On Selection: 11
Rapelang Patala
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233
179
0.768
Nanotechnology
membrane technology
water filtration
membrane fouling
* Total Citation Counts Rankings
Rankings
1,389,937
9,036
586
Ranking Based On Selection: 12
Unathi Sidwaba
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
168
121
0.720
Nanomaterials
Polymers
Nanocomposites
Electrochemistry
Bio/sensors
* Total Citation Counts Rankings
Rankings
1,447,977
9,582
636
Ranking Based On Selection: 13
Sreedhar Doraswamy
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
147
92
0.626
Energy & Nanotechnology
* Total Citation Counts Rankings
Rankings
1,505,568
10,121
695
Ranking Based On Selection: 14
Patrice Umenne
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128
117
0.914
Associate Professor in Josephson Effect
Microelectronics
Electronics
Embedded Systems
Nanotechnology
* Total Citation Counts Rankings
Rankings
1,779,468
12,571
971
Ranking Based On Selection: 15
Coster Kumunda
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62
62
1.000
electroanalytical chemistry
nanomaterials
electrochemical detection and degradation