Citation Rankings
Highly Cited Researchers

Natural Sciences / Chemical Sciences Highly Cited Researchers 37 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 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.

* Last 6 Years Citation Rankings

Rankings

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8,529
World Rank
South Africa
36
Country Rank
University of South Africa Logo
1
University
Ranking Based On Selection:
1
Natural Sciences / Chemical Sciences
corrosion | corrosion inhibition | corrosion of metals | adsorption | quantum chemical calculation

Citation Metrics

  • Total
    42,091
  • Last 6 Years
    25,793
  • Last 6 Years / Total
    0.613
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* Last 6 Years Citation Rankings

Rankings

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17,647
World Rank
South Africa
71
Country Rank
University of South Africa Logo
2
University
Ranking Based On Selection:
2
Natural Sciences / Chemical Sciences
Nanotechnology for Water Treatment | Membrane Technology | Water Treatment Technologie

Citation Metrics

  • Total
    22,357
  • Last 6 Years
    16,019
  • Last 6 Years / Total
    0.717
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* Last 6 Years Citation Rankings

Rankings

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50,289
World Rank
South Africa
205
Country Rank
University of South Africa Logo
6
University
Ranking Based On Selection:
3
Natural Sciences / Chemical Sciences
Analytical Chemistry | Aquatic Toxicology | Chromatography | Mass spectrometry | Food Chemistr

Citation Metrics

  • Total
    10,510
  • Last 6 Years
    7,901
  • Last 6 Years / Total
    0.752
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* Last 6 Years Citation Rankings

Rankings

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66,000
World Rank
South Africa
266
Country Rank
University of South Africa Logo
9
University
Ranking Based On Selection:
4
Natural Sciences / Chemical Sciences
Polymers | Organic chemistry | Coating | Corrosion | Nanotechnolog

Citation Metrics

  • Total
    6,717
  • Last 6 Years
    6,498
  • Last 6 Years / Total
    0.967
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* Last 6 Years Citation Rankings

Rankings

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112,818
World Rank
South Africa
469
Country Rank
University of South Africa Logo
15
University
Ranking Based On Selection:
5
Natural Sciences / Chemical Sciences
Coordination chemistry | Magnetic nanoparticle | Photocatalyst | Acid mine drainage | Emerging organic pollutan

Citation Metrics

  • Total
    4,984
  • Last 6 Years
    4,292
  • Last 6 Years / Total
    0.861
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* Last 6 Years Citation Rankings

Rankings

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146,220
World Rank
South Africa
626
Country Rank
University of South Africa Logo
21
University
Ranking Based On Selection:
6
Natural Sciences / Chemical Sciences
Sol-Gel Technology | Nanomaterials | Ceramics and Water Treatmen

Citation Metrics

  • Total
    6,032
  • Last 6 Years
    3,447
  • Last 6 Years / Total
    0.571
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* Last 6 Years Citation Rankings

Rankings

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149,119
World Rank
South Africa
641
Country Rank
University of South Africa Logo
22
University
Ranking Based On Selection:
7
Natural Sciences / Chemical Sciences
Analytical Chemistry | Environmental Monitoring | Chromatograph

Citation Metrics

  • Total
    3,863
  • Last 6 Years
    3,390
  • Last 6 Years / Total
    0.878
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* Last 6 Years Citation Rankings

Rankings

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194,239
World Rank
South Africa
836
Country Rank
University of South Africa Logo
26
University
Ranking Based On Selection:
8
Natural Sciences / Chemical Sciences
Fischer Tropsch | catalysis | alternative energy | energy materials | CO2 utilizatio

Citation Metrics

  • Total
    3,450
  • Last 6 Years
    2,675
  • Last 6 Years / Total
    0.775
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* Last 6 Years Citation Rankings

Rankings

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303,446
World Rank
South Africa
1,379
Country Rank
University of South Africa Logo
38
University
Ranking Based On Selection:
9
Natural Sciences / Chemical Sciences
Environmental Analytical Chemistry | Chromatograph

Citation Metrics

  • Total
    1,861
  • Last 6 Years
    1,717
  • Last 6 Years / Total
    0.923
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* Last 6 Years Citation Rankings

Rankings

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332,721
World Rank
South Africa
1,533
Country Rank
University of South Africa Logo
41
University
Ranking Based On Selection:
10
Natural Sciences / Chemical Sciences
Institute for Nanotechnology and Water Sustainability (iNanoWS

Citation Metrics

  • Total
    2,365
  • Last 6 Years
    1,551
  • Last 6 Years / Total
    0.656
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* Last 6 Years Citation Rankings

Rankings

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352,404
World Rank
South Africa
1,640
Country Rank
University of South Africa Logo
45
University
Ranking Based On Selection:
11
Natural Sciences / Chemical Sciences
analytical chemistry | nanomaterials | separation chromatography | food chemistry | environmental analysi

Citation Metrics

  • Total
    1,810
  • Last 6 Years
    1,453
  • Last 6 Years / Total
    0.803
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* Last 6 Years Citation Rankings

Rankings

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374,029
World Rank
South Africa
1,762
Country Rank
University of South Africa Logo
53
University
Ranking Based On Selection:
12
Natural Sciences / Chemical Sciences
Diagnostics sensors | electroanalytical chemistry | electrochemical sensors | and nanoelectrochemistry

Citation Metrics

  • Total
    1,411
  • Last 6 Years
    1,355
  • Last 6 Years / Total
    0.960
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* Last 6 Years Citation Rankings

Rankings

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438,062
World Rank
South Africa
2,083
Country Rank
University of South Africa Logo
65
University
Ranking Based On Selection:
13
Natural Sciences / Chemical Sciences
Biosensors | Hydrogen storage | Photoelectrochemistry | electrochemistry | water treatmen

Citation Metrics

  • Total
    1,311
  • Last 6 Years
    1,114
  • Last 6 Years / Total
    0.850
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* Last 6 Years Citation Rankings

Rankings

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447,280
World Rank
South Africa
2,129
Country Rank
University of South Africa Logo
68
University
Ranking Based On Selection:
14
Natural Sciences / Chemical Sciences
Environmental Analytical Chemistry | Passive sampling techniques | Environmental monitoring | Water scienc

Citation Metrics

  • Total
    1,279
  • Last 6 Years
    1,084
  • Last 6 Years / Total
    0.848
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* Last 6 Years Citation Rankings

Rankings

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518,390
World Rank
South Africa
2,566
Country Rank
University of South Africa Logo
91
University
Ranking Based On Selection:
15
Natural Sciences / Chemical Sciences
Catalysis | Fuel Cell and Nanotechnolog

Citation Metrics

  • Total
    1,283
  • Last 6 Years
    884
  • Last 6 Years / Total
    0.689
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* Last 6 Years Citation Rankings

Rankings

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613,177
World Rank
South Africa
3,156
Country Rank
University of South Africa Logo
121
University
Ranking Based On Selection:
16
Natural Sciences / Chemical Sciences
CO2 hydrogenation | Fischer Tropsch | Catalysis | XTL Process design | Polyolefin

Citation Metrics

  • Total
    1,276
  • Last 6 Years
    682
  • Last 6 Years / Total
    0.534
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* Last 6 Years Citation Rankings

Rankings

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905,850
World Rank
South Africa
5,168
Country Rank
University of South Africa Logo
237
University
Ranking Based On Selection:
17

Citation Metrics

  • Total
    387
  • Last 6 Years
    339
  • Last 6 Years / Total
    0.876
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* Last 6 Years Citation Rankings

Rankings

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937,166
World Rank
South Africa
5,423
Country Rank
University of South Africa Logo
257
University
Ranking Based On Selection:
18
Natural Sciences / Chemical Sciences
Electrochemistry | Energy Storage Devices | Nanotechnology | Thermochemical Heat Storage | Water Researc

Citation Metrics

  • Total
    335
  • Last 6 Years
    317
  • Last 6 Years / Total
    0.946
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* Last 6 Years Citation Rankings

Rankings

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1,000,921
World Rank
South Africa
5,915
Country Rank
University of South Africa Logo
291
University
Ranking Based On Selection:
19
Natural Sciences / Chemical Sciences
Biocatalysis | Green chemistry | Biobased econom

Citation Metrics

  • Total
    342
  • Last 6 Years
    277
  • Last 6 Years / Total
    0.810
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* Last 6 Years Citation Rankings

Rankings

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1,006,719
World Rank
South Africa
5,956
Country Rank
University of South Africa Logo
295
University
Ranking Based On Selection:
20

Citation Metrics

  • Total
    1,218
  • Last 6 Years
    273
  • Last 6 Years / Total
    0.224
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* Last 6 Years Citation Rankings

Rankings

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1,094,963
World Rank
South Africa
6,646
Country Rank
University of South Africa Logo
345
University
Ranking Based On Selection:
21
Natural Sciences / Chemical Sciences
Organic based ReRAM memory devices towards green computing | Fourth industrial Revolution

Citation Metrics

  • Total
    266
  • Last 6 Years
    228
  • Last 6 Years / Total
    0.857
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* Last 6 Years Citation Rankings

Rankings

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1,263,294
World Rank
South Africa
8,009
Country Rank
University of South Africa Logo
463
University
Ranking Based On Selection:
22
Natural Sciences / Chemical Sciences
Photocatalysis | Carbon nanotube nanohybrids | Photocatalytic membranes | Wastewater Treatmen

Citation Metrics

  • Total
    168
  • Last 6 Years
    164
  • Last 6 Years / Total
    0.976
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* Last 6 Years Citation Rankings

Rankings

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1,287,673
World Rank
South Africa
8,192
Country Rank
University of South Africa Logo
477
University
Ranking Based On Selection:
23
Natural Sciences / Chemical Sciences
General Chemistry | Physical Chemistry | Thermal analysis | Silica nanoparticles | Coal fly as

Citation Metrics

  • Total
    246
  • Last 6 Years
    156
  • Last 6 Years / Total
    0.634
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* Last 6 Years Citation Rankings

Rankings

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1,333,857
World Rank
South Africa
8,579
Country Rank
University of South Africa Logo
515
University
Ranking Based On Selection:
24
Natural Sciences / Chemical Sciences
Nanotechnology | bioinformatics | organic chemistry | computational chemsitry | pharmaceutic

Citation Metrics

  • Total
    178
  • Last 6 Years
    143
  • Last 6 Years / Total
    0.803
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* Last 6 Years Citation Rankings

Rankings

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1,580,641
World Rank
South Africa
10,605
Country Rank
University of South Africa Logo
728
University
Ranking Based On Selection:
25