Citation Rankings
Highly Cited Researchers
South Africa Highly Cited Researchers CitationEngineering & Technology / Metallurgical & Materials Engineering in South Africa Rankings 2025
The Citation Rankings (Highly Cited Researchers) 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 :26
hydrogen technology
nanomaterials
organometallic complex
metal hydride
polymers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,594
1,442
0.905
* Total Citation Counts Rankings
Ranking Based On Selection :27
Energy storage Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,590
1,239
0.779
* Total Citation Counts Rankings
Ranking Based On Selection :28
Environmental Analytical Chemistry
Water Treatment
Membrane Technology
Resource Recovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,588
1,527
0.962
* Total Citation Counts Rankings
Ranking Based On Selection :29
Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,554
1,390
0.894
* Total Citation Counts Rankings
Ranking Based On Selection :30
catalysis
synthesis
polymers
surfactants
modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,490
502
0.337
* Total Citation Counts Rankings
Ranking Based On Selection :31
Surface Modification
Corrosion Inhibition
Biomaterials
Titanium & Magnesium Alloys
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,453
1,113
0.766
* Total Citation Counts Rankings
Ranking Based On Selection :32
Remote sensing
GIS
Geospatial modelling
Surface hydrology
Spatial ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,441
1,266
0.879
* Total Citation Counts Rankings
Ranking Based On Selection :33
Hydrogen energy
Ferrochrome
Solid-state reduction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,385
1,326
0.957
* Total Citation Counts Rankings
Ranking Based On Selection :34
Physical Chemistry
Materials and Polymer Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,311
1,085
0.828
* Total Citation Counts Rankings
Ranking Based On Selection :35
semiconductor
thin films
oxide semiconductors
GaN
scanning probe microscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
516
0.421
* Total Citation Counts Rankings
Ranking Based On Selection :36
Material synthesis
Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,170
1,041
0.890
* Total Citation Counts Rankings
Ranking Based On Selection :37
Polymer science
biodegradable polymer
blends
their composites
and nanocomposites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,012
711
0.703
* Total Citation Counts Rankings
Ranking Based On Selection :38
Material Science
Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,001
711
0.710
* Total Citation Counts Rankings
Ranking Based On Selection :39
Pyrometallurgy
Refractory materials
Cr(VI)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
997
620
0.622
* Total Citation Counts Rankings
Ranking Based On Selection :40
Hydrometallurgy
Solvent extraction
Metal separation
Aluminum recycling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
989
755
0.763
* Total Citation Counts Rankings
Ranking Based On Selection :41
Process Development & Design
Solids Processing
Minerals Beneficiation
Waste-to-Value
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
978
634
0.648
* Total Citation Counts Rankings
Ranking Based On Selection :42
Polymers
expanded graphite
nanomaterials
polymer composites
polymer blend composites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
921
884
0.960
* Total Citation Counts Rankings
Ranking Based On Selection :43
Hydrometallurgy
corrosion
electrometallurgy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
868
273
0.315
* Total Citation Counts Rankings
Ranking Based On Selection :44
Metallurgy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
857
389
0.454
* Total Citation Counts Rankings
Ranking Based On Selection :45
materials science
energy storage
water conservation
cleaner production
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
840
305
0.363
* Total Citation Counts Rankings
Ranking Based On Selection :46
Residual stress measurement
Composite structures
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
817
449
0.550
* Total Citation Counts Rankings
Ranking Based On Selection :47
Membrane materials for water treatment
Membrane preparation
Forward osmosis
Membrane fouling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
813
650
0.800
* Total Citation Counts Rankings
Ranking Based On Selection :48
Material science
adsorption
biomaterials
nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
809
719
0.889
* Total Citation Counts Rankings
Ranking Based On Selection :49
Metallurgical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
785
580
0.739
* Total Citation Counts Rankings
Ranking Based On Selection :50
Polymer Additives
Layered Double Hydroxides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
762
570
0.748
* Total Citation Counts Rankings
Rankings
514,339
2,551
16
Ranking Based On Selection: 26
Kwena Desmond Modibane
University of Limpopo
Mankweng, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,594
1,442
0.905
hydrogen technology
nanomaterials
organometallic complex
metal hydride
polymers
* Total Citation Counts Rankings
Rankings
515,254
2,561
39
Ranking Based On Selection: 27
Kumar Raju
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,590
1,239
0.779
Energy storage Materials
* Total Citation Counts Rankings
Rankings
515,650
2,562
280
Ranking Based On Selection: 28
Lebea Nthunya
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,588
1,527
0.962
Environmental Analytical Chemistry
Water Treatment
Membrane Technology
Resource Recovery
* Total Citation Counts Rankings
Rankings
522,995
2,606
35
Ranking Based On Selection: 29
Mxolisi Shongwe
Tshwane University of Technology
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,554
1,390
0.894
* Total Citation Counts Rankings
Rankings
537,359
2,682
137
Ranking Based On Selection: 30
HCM Vosloo
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,490
502
0.337
catalysis
synthesis
polymers
surfactants
modelling
* Total Citation Counts Rankings
Rankings
545,743
2,735
142
Ranking Based On Selection: 31
Y. Sasikumar
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,453
1,113
0.766
Surface Modification
Corrosion Inhibition
Biomaterials
Titanium & Magnesium Alloys
* Total Citation Counts Rankings
Rankings
548,482
2,752
292
Ranking Based On Selection: 32
Cletah Shoko
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,441
1,266
0.879
Remote sensing
GIS
Geospatial modelling
Surface hydrology
Spatial ecology
* Total Citation Counts Rankings
Rankings
562,312
2,836
150
Ranking Based On Selection: 33
Stephanus Petrus Du Preez|Faan du Preez
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,385
1,326
0.957
Hydrogen energy
Ferrochrome
Solid-state reduction
* Total Citation Counts Rankings
Rankings
581,453
2,963
194
Ranking Based On Selection: 34
Mamookho Elizabeth Makhatha
University of Johannesburg
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,311
1,085
0.828
Physical Chemistry
Materials and Polymer Science
* Total Citation Counts Rankings
Rankings
605,237
3,102
308
Ranking Based On Selection: 35
Jackie Nel
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
516
0.421
semiconductor
thin films
oxide semiconductors
GaN
scanning probe microscopy
* Total Citation Counts Rankings
Rankings
621,769
3,207
207
Ranking Based On Selection: 36
Ndzondelelo Bingwa
University of Johannesburg
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,170
1,041
0.890
Material synthesis
Catalysis
* Total Citation Counts Rankings
Rankings
674,177
3,501
91
Ranking Based On Selection: 37
Julia Puseletso Mofokeng
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,012
711
0.703
Polymer science
biodegradable polymer
blends
their composites
and nanocomposites
* Total Citation Counts Rankings
Rankings
678,156
3,517
62
Ranking Based On Selection: 38
Sylvester Bolokang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,001
711
0.710
Material Science
Physics
* Total Citation Counts Rankings
Rankings
679,634
3,531
358
Ranking Based On Selection: 39
Andrie Garbers-Craig
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
997
620
0.622
Pyrometallurgy
Refractory materials
Cr(VI)
* Total Citation Counts Rankings
Rankings
682,519
3,550
94
Ranking Based On Selection: 40
Manish Kumar Sinha
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
989
755
0.763
Hydrometallurgy
Solvent extraction
Metal separation
Aluminum recycling
* Total Citation Counts Rankings
Rankings
686,563
3,573
362
Ranking Based On Selection: 41
Vusumuzi Sibanda
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
978
634
0.648
Process Development & Design
Solids Processing
Minerals Beneficiation
Waste-to-Value
* Total Citation Counts Rankings
Rankings
708,019
3,719
5
Ranking Based On Selection: 42
Jeremia Shale Sefadi
Sol Plaatje University
Kimberley, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
921
884
0.960
Polymers
expanded graphite
nanomaterials
polymer composites
polymer blend composites
* Total Citation Counts Rankings
Rankings
729,835
3,820
403
Ranking Based On Selection: 43
Roelf Sandenbergh
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
868
273
0.315
Hydrometallurgy
corrosion
electrometallurgy
* Total Citation Counts Rankings
Rankings
734,383
3,853
67
Ranking Based On Selection: 44
C Machio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
857
389
0.454
* Total Citation Counts Rankings
Rankings
741,572
3,903
71
Ranking Based On Selection: 45
David EC Rogers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
840
305
0.363
materials science
energy storage
water conservation
cleaner production
* Total Citation Counts Rankings
Rankings
751,533
3,965
401
Ranking Based On Selection: 46
Robert Reid
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
817
449
0.550
Residual stress measurement
Composite structures
* Total Citation Counts Rankings
Rankings
753,049
3,971
163
Ranking Based On Selection: 47
Machawe M Motsa
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
813
650
0.800
Membrane materials for water treatment
Membrane preparation
Forward osmosis
Membrane fouling
* Total Citation Counts Rankings
Rankings
754,801
3,989
14
Ranking Based On Selection: 48
Agnes Pholosi
Vaal University of Technology
Vanderbijlpark, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
809
719
0.889
Material science
adsorption
biomaterials
nanomaterials
* Total Citation Counts Rankings
Rankings
765,594
4,066
16
Ranking Based On Selection: 49
Otunniyi, Iyiola Olatunji
Vaal University of Technology
Vanderbijlpark, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
785
580
0.739
Metallurgical Engineering
* Total Citation Counts Rankings
Rankings
775,713
4,135
427
Ranking Based On Selection: 50
Fjwj Labuschagne
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
762
570
0.748
Polymer Additives
Layered Double Hydroxides