The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 31, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Catalysis and surface science
Metrics
H-Index
i10 Index
Citation Counts
120
550
56,227
* Total H IndexRankings
Ranking Based On Selection: 2
Surface science
Catalysis
Oxides
Energy
Fuels
Metrics
H-Index
i10 Index
Citation Counts
71
207
18,926
* Total H IndexRankings
Ranking Based On Selection: 3
batteries
synchrotron characterization
electrolyte
Metrics
H-Index
i10 Index
Citation Counts
68
132
18,572
* Total H IndexRankings
Ranking Based On Selection: 4
X-ray absorption spectroscopy
operando
heterogeneous catalysis
synchrotron radiation
Metrics
H-Index
i10 Index
Citation Counts
59
126
14,024
* Total H IndexRankings
Ranking Based On Selection: 5
Surface Science
Surface Chemistry
Heterogeneous Catalysis
Oxide Surfaces
surface_catalysis
Metrics
H-Index
i10 Index
Citation Counts
59
166
13,989
* Total H IndexRankings
Ranking Based On Selection: 6
superconductivity
Metrics
H-Index
i10 Index
Citation Counts
57
167
15,126
* Total H IndexRankings
Ranking Based On Selection: 7
Atmospheric Chemistry
Climate Studies
Metrics
H-Index
i10 Index
Citation Counts
56
98
8,546
* Total H IndexRankings
Ranking Based On Selection: 8
atmospheric chemistry OR quantum mechanics
Metrics
H-Index
i10 Index
Citation Counts
52
83
7,505
* Total H IndexRankings
Ranking Based On Selection: 9
theoretical chemistry
quantum chemistry
density functional theory
charge transfer
Metrics
H-Index
i10 Index
Citation Counts
43
71
11,809
* Total H IndexRankings
Ranking Based On Selection: 10
Transition Metal Complexes
Density Functional Theory
Artificial Photosynthesis
Homogeneous Catalysis
Metrics
H-Index
i10 Index
Citation Counts
41
71
5,797
* Total H IndexRankings
Ranking Based On Selection: 11
Catalysis science
Alternative fuels
Natural gas
Metrics
H-Index
i10 Index
Citation Counts
38
47
4,836
* Total H IndexRankings
Ranking Based On Selection: 12
chemical physics
Metrics
H-Index
i10 Index
Citation Counts
38
87
4,616
* Total H IndexRankings
Ranking Based On Selection: 13
Catalysis
Energy
Synchrotron Techniques
Kinetics
Metrics
H-Index
i10 Index
Citation Counts
32
49
4,241
* Total H IndexRankings
Ranking Based On Selection: 14
Energy storage
First-principle calculation
Ionic transportation
Structural analysis
Metrics
H-Index
i10 Index
Citation Counts
31
39
3,827
* Total H IndexRankings
Ranking Based On Selection: 15
catalysis
photochemistry
pulse radiolysis
PCET
Metrics
H-Index
i10 Index
Citation Counts
29
45
3,240
* Total H IndexRankings
Ranking Based On Selection: 16
Computational Chemistry
Metrics
H-Index
i10 Index
Citation Counts
26
48
7,825
* Total H IndexRankings
Ranking Based On Selection: 17
Electrocatalysis
Material chemistry
XAS
Metrics
H-Index
i10 Index
Citation Counts
22
28
2,042
* Total H IndexRankings
Ranking Based On Selection: 18
Biotechnology
Analytical Chemistry
Nanotechnology
Materials Science
Metrics
H-Index
i10 Index
Citation Counts
20
24
1,348
* Total H IndexRankings
Ranking Based On Selection: 19
Electrocatalyst
nanomaterial
Fuel cell
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,712
* Total H IndexRankings
Ranking Based On Selection: 20
Li/Na-ion batteries
Li metal anode
Li-S batteries
Synchrotron spectroscopy
Metrics
H-Index
i10 Index
Citation Counts
19
23
1,292
* Total H IndexRankings
Ranking Based On Selection: 21
Atmospheric Chemistry
Bioaerosols
Aerosol Mass Spectrometry
Aerosol-Cloud Interactions
Metrics
H-Index
i10 Index
Citation Counts
19
24
1,146
* Total H IndexRankings
Ranking Based On Selection: 22
Chemistry
Materials Science
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,096
* Total H IndexRankings
Ranking Based On Selection: 23
Catalysis
Metrics
H-Index
i10 Index
Citation Counts
15
15
771
* Total H IndexRankings
Ranking Based On Selection: 24
Solar energy conversion
Photochemistry
Inorganic chemistry
Metrics
H-Index
i10 Index
Citation Counts
11
13
330
* Total H IndexRankings
Ranking Based On Selection: 25
chemistry
density functional theory
nanomaterials
energy
environmental science
Metrics
H-Index
i10 Index
Citation Counts
9
8
179
Jose A Rodriguez
Metrics
H-Index
i10-Index
Citation Counts
120
550
56,227
Sanjaya D Senanayake
Metrics
H-Index
i10-Index
Citation Counts
71
207
18,926
Surface science
Catalysis
Oxides
Energy
Fuels
Enyuan Hu
Metrics
H-Index
i10-Index
Citation Counts
68
132
18,572
batteries
synchrotron characterization
electrolyte
Eli Stavitski
Metrics
H-Index
i10-Index
Citation Counts
59
126
14,024
X-ray absorption spectroscopy
operando
heterogeneous catalysis
synchrotron radiation
Dario Stacchiola
Metrics
H-Index
i10-Index
Citation Counts
59
166
13,989
Surface Science
Surface Chemistry
Heterogeneous Catalysis
Oxide Surfaces
surface_catalysis
Ivan Bozovic
Metrics
H-Index
i10-Index
Citation Counts
57
167
15,126
Stephen R Springston
Metrics
H-Index
i10-Index
Citation Counts
56
98
8,546
Atmospheric Chemistry
Climate Studies
L Kleinmann
Metrics
H-Index
i10-Index
Citation Counts
52
83
7,505
atmospheric chemistry OR quantum mechanics
Qin Wu
Metrics
H-Index
i10-Index
Citation Counts
43
71
11,809
theoretical chemistry
quantum chemistry
density functional theory
charge transfer
Mehmed Zahid Ertem
Metrics
H-Index
i10-Index
Citation Counts
41
71
5,797
Transition Metal Complexes
Density Functional Theory
Artificial Photosynthesis
Homogeneous Catalysis
Zongyuan Liu
Metrics
H-Index
i10-Index
Citation Counts
38
47
4,836
Catalysis science
Alternative fuels
Natural gas
Gregory Hall
Metrics
H-Index
i10-Index
Citation Counts
38
87
4,616
Zhenhua (Harvey) Xie
Metrics
H-Index
i10-Index
Citation Counts
32
49
4,241
Catalysis
Energy
Synchrotron Techniques
Kinetics
Xuelong Wang
Metrics
H-Index
i10-Index
Citation Counts
31
39
3,827
Energy storage
First-principle calculation
Ionic transportation
Structural analysis
Dmitry Polyansky
Metrics
H-Index
i10-Index
Citation Counts
29
45
3,240
catalysis
photochemistry
pulse radiolysis
PCET
Hubertus Johannes Jacobus Van Dam
Metrics
H-Index
i10-Index
Citation Counts
26
48
7,825
Kurian Kuttiyiel
Metrics
H-Index
i10-Index
Citation Counts
22
28
2,042
Electrocatalysis
Material chemistry
XAS
Cheng Tian
Metrics
H-Index
i10-Index
Citation Counts
20
24
1,348
Biotechnology
Analytical Chemistry
Nanotechnology
Materials Science
Xueru Zhao
Metrics
H-Index
i10-Index
Citation Counts
19
25
1,712
Electrocatalyst
nanomaterial
Fuel cell
Muhammad Mominur Rahman
Metrics
H-Index
i10-Index
Citation Counts
19
23
1,292
Li/Na-ion batteries
Li metal anode
Li-S batteries
Synchrotron spectroscopy
Maria A Zawadowicz
Metrics
H-Index
i10-Index
Citation Counts
19
24
1,146
Atmospheric Chemistry
Bioaerosols
Aerosol Mass Spectrometry
Aerosol-Cloud Interactions
Samuel Tenney
Metrics
H-Index
i10-Index
Citation Counts
18
25
1,096
Dimitriy Vovchok
Metrics
H-Index
i10-Index
Citation Counts
15
15
771
Andressa Vidal Müller
Metrics
H-Index
i10-Index
Citation Counts
11
13
330
Solar energy conversion
Photochemistry
Inorganic chemistry
Jennifer Bjorklund
Metrics
H-Index
i10-Index
Citation Counts
9
8
179
chemistry
density functional theory
nanomaterials
energy
environmental science