Citation Rankings
Highly Cited Researchers
Johnson Matthey Highly Cited Researchers Citation Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,039
2,891
0.360
* Total Citation Counts Rankings
Ranking Based On Selection :2
Chemical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,322
3,226
0.441
* Total Citation Counts Rankings
Ranking Based On Selection :3
Catalysis
Photocatalysis
X-ray characterisation.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,648
4,394
0.661
* Total Citation Counts Rankings
Ranking Based On Selection :4
Electron Microscopy
in-situ research
catalyst characterisation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,774
2,624
0.550
* Total Citation Counts Rankings
Ranking Based On Selection :5
Chemistry
zeolite
porous materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,262
1,636
0.384
* Total Citation Counts Rankings
Ranking Based On Selection :6
catalysis and surface science
spectroscopy
materials science
astrobiology
martial arts
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,852
1,871
0.486
* Total Citation Counts Rankings
Ranking Based On Selection :7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,923
1,166
0.399
* Total Citation Counts Rankings
Ranking Based On Selection :8
catalysis
electrochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,719
1,205
0.443
* Total Citation Counts Rankings
Ranking Based On Selection :9
Catalysis
DOCs
SCRs
SOFC
DAC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,429
2,178
0.897
* Total Citation Counts Rankings
Ranking Based On Selection :10
Electron microscopy
catalysts
nanoparticles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,270
618
0.272
* Total Citation Counts Rankings
Ranking Based On Selection :11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,098
706
0.337
* Total Citation Counts Rankings
Ranking Based On Selection :12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,849
396
0.214
* Total Citation Counts Rankings
Ranking Based On Selection :13
Chemistry
Material Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,817
779
0.429
* Total Citation Counts Rankings
Ranking Based On Selection :14
Organic Synthesis
Process Chemistry
Analytical Chemistry
Pharmaceutical Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,794
1,705
0.950
* Total Citation Counts Rankings
Ranking Based On Selection :15
Fuel Cells
Electrolyzers
Ion Conducting Membranes
Durability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,705
844
0.495
* Total Citation Counts Rankings
Ranking Based On Selection :16
Zeolites
Catalysis
Spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,676
1,027
0.613
* Total Citation Counts Rankings
Ranking Based On Selection :17
Structural Characterisation
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,666
411
0.247
* Total Citation Counts Rankings
Ranking Based On Selection :18
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,621
517
0.319
* Total Citation Counts Rankings
Ranking Based On Selection :19
Density Functional Theory
Surface Chemistry
Energy Storage
Amorphous Materials
Water splitting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,478
1,200
0.812
* Total Citation Counts Rankings
Ranking Based On Selection :20
Catalysis
Energy
Gasification
Precious metals
Characterisation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,429
452
0.316
* Total Citation Counts Rankings
Ranking Based On Selection :21
Catalysis
Membranes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,419
525
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :22
Process Engineering
Decarbonisation
Syngas Technologies
Blue Hydrogen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,372
1,012
0.738
* Total Citation Counts Rankings
Ranking Based On Selection :23
technology transfer
process scale up
battery materials
rheology
polymers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,296
403
0.311
* Total Citation Counts Rankings
Ranking Based On Selection :24
Organic electronics
solar cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,152
336
0.292
* Total Citation Counts Rankings
Ranking Based On Selection :25
Electrochemical CO2 Reduction
Materials Chemistry
Fuel Cell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,059
1,026
0.969
* Total Citation Counts Rankings
Rankings
122,504
10,014
1
Ranking Based On Selection: 1
Andrew York
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,039
2,891
0.360
* Total Citation Counts Rankings
Rankings
135,715
10,933
2
Ranking Based On Selection: 2
Hugh Stitt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,322
3,226
0.441
* Total Citation Counts Rankings
Rankings
150,297
11,923
3
Ranking Based On Selection: 3
David James Martin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,648
4,394
0.661
Catalysis
Photocatalysis
X-ray characterisation.
* Total Citation Counts Rankings
Rankings
208,641
15,887
4
Ranking Based On Selection: 4
Manfred Erwin Schuster
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,774
2,624
0.550
* Total Citation Counts Rankings
Rankings
231,955
17,416
5
Ranking Based On Selection: 5
Nicolas Bats
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,262
1,636
0.384
Chemistry
zeolite
porous materials
* Total Citation Counts Rankings
Rankings
254,516
18,836
6
Ranking Based On Selection: 6
Glenn Jones
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,852
1,871
0.486
catalysis and surface science
spectroscopy
materials science
astrobiology
martial arts
* Total Citation Counts Rankings
Rankings
321,667
22,831
7
Ranking Based On Selection: 7
Michiel Nijemeisland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,923
1,166
0.399
* Total Citation Counts Rankings
Rankings
341,145
23,966
8
Ranking Based On Selection: 8
Peter Ellis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,719
1,205
0.443
* Total Citation Counts Rankings
Rankings
372,613
25,711
9
Ranking Based On Selection: 9
Leo DeRita
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,429
2,178
0.897
* Total Citation Counts Rankings
Rankings
392,403
26,804
10
Ranking Based On Selection: 10
Dogan Ozkaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,270
618
0.272
Electron microscopy
catalysts
nanoparticles
* Total Citation Counts Rankings
Rankings
415,756
28,060
11
Ranking Based On Selection: 11
Adrian H. Hill
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,098
706
0.337
* Total Citation Counts Rankings
Rankings
455,620
30,120
12
Ranking Based On Selection: 12
Tim Watling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,849
396
0.214
* Total Citation Counts Rankings
Rankings
461,075
30,420
13
Ranking Based On Selection: 13
Miquel Planells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,817
779
0.429
* Total Citation Counts Rankings
Rankings
464,991
30,604
14
Ranking Based On Selection: 14
Shekhar KC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,794
1,705
0.950
Organic Synthesis
Process Chemistry
Analytical Chemistry
Pharmaceutical Development
* Total Citation Counts Rankings
Rankings
481,421
31,442
15
Ranking Based On Selection: 15
Mike Yandrasits
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,705
844
0.495
* Total Citation Counts Rankings
Rankings
486,935
31,728
16
Ranking Based On Selection: 16
ZHIQIANG MA
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,676
1,027
0.613
* Total Citation Counts Rankings
Rankings
489,070
31,847
17
Ranking Based On Selection: 17
Timothy I Hyde
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,666
411
0.247
* Total Citation Counts Rankings
Rankings
498,279
32,337
18
Ranking Based On Selection: 18
Ronan Bellabarba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,621
517
0.319
* Total Citation Counts Rankings
Rankings
529,254
33,927
19
Ranking Based On Selection: 19
Rachel Nathaniel Kerber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,478
1,200
0.812
Density Functional Theory
Surface Chemistry
Energy Storage
Amorphous Materials
Water splitting
* Total Citation Counts Rankings
Rankings
540,690
34,503
20
Ranking Based On Selection: 20
Andrew Steele
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,429
452
0.316
Catalysis
Energy
Gasification
Precious metals
Characterisation
* Total Citation Counts Rankings
Rankings
543,078
34,615
21
Ranking Based On Selection: 21
Xavier (Xian Yang) Quek
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,419
525
0.370
* Total Citation Counts Rankings
Rankings
554,455
35,175
22
Ranking Based On Selection: 22
Majid Sadeqzadeh Boroujeni|Majid Boroujeni, Majid Sadeqzadeh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,372
1,012
0.738
Process Engineering
Decarbonisation
Syngas Technologies
Blue Hydrogen
* Total Citation Counts Rankings
Rankings
574,425
36,161
23
Ranking Based On Selection: 23
Rulande PG Rutgers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,296
403
0.311
technology transfer
process scale up
battery materials
rheology
polymers
* Total Citation Counts Rankings
Rankings
615,702
38,123
24
Ranking Based On Selection: 24
David James
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,152
336
0.292
Organic electronics
solar cells
* Total Citation Counts Rankings
Rankings
645,652
39,500
25
Ranking Based On Selection: 25
Saurav Ch. Sarma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,059
1,026
0.969
Electrochemical CO2 Reduction
Materials Chemistry
Fuel Cell