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 Feb 03, 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 (870.057) 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
photocatalysis
aggregation
catalysis
energy conversion
nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
120
494
51,428
* Total H IndexRankings
Ranking Based On Selection: 2
Polymer science
Macromolecular engineering
NanoMedicine
Energy
Metrics
H-Index
i10 Index
Citation Counts
112
365
40,195
* Total H IndexRankings
Ranking Based On Selection: 3
Electrochemical Energy Technologies
Carbon Materials
2D Materials
Metrics
H-Index
i10 Index
Citation Counts
78
195
34,404
* Total H IndexRankings
Ranking Based On Selection: 4
chemical engineering
hydrogen energy
CO2 reduction
catalysis
energy storage
Metrics
H-Index
i10 Index
Citation Counts
59
137
9,890
* Total H IndexRankings
Ranking Based On Selection: 5
CFD modelling of reacting flow
Process metallurgy
Mineral processing
Renewable energy
Recycling
Metrics
H-Index
i10 Index
Citation Counts
50
151
7,051
* Total H IndexRankings
Ranking Based On Selection: 6
Energy
Hydrogen storage
Batteries
Catalysis
Metrics
H-Index
i10 Index
Citation Counts
48
131
7,825
* Total H IndexRankings
Ranking Based On Selection: 7
Photopolymerization
3D Printing
Polymer Science
Photochemistry
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
41
53
6,725
* Total H IndexRankings
Ranking Based On Selection: 8
environmental technology
water treatment and quality
separation processes
natural organic matter
algae and cyanobacteria
Metrics
H-Index
i10 Index
Citation Counts
41
81
8,870
* Total H IndexRankings
Ranking Based On Selection: 9
nanotechnology
electrochemistry for sensors
targeted drug delivery
Metrics
H-Index
i10 Index
Citation Counts
40
89
5,469
* Total H IndexRankings
Ranking Based On Selection: 10
process system engineering
process control
dissipativity
distributed control
Metrics
H-Index
i10 Index
Citation Counts
38
116
5,970
* Total H IndexRankings
Ranking Based On Selection: 11
Electrochemical Energy Storage
Solid-State Electrochemistry
Materials Science
Metrics
H-Index
i10 Index
Citation Counts
34
44
12,518
* Total H IndexRankings
Ranking Based On Selection: 12
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
33
48
3,615
* Total H IndexRankings
Ranking Based On Selection: 13
Colloids
Soft Matter
Microrheology
Microfluidics
Microstructure
Metrics
H-Index
i10 Index
Citation Counts
32
61
6,171
* Total H IndexRankings
Ranking Based On Selection: 14
colloids
polymers
interfacial structure
soft matter
Metrics
H-Index
i10 Index
Citation Counts
32
70
3,688
* Total H IndexRankings
Ranking Based On Selection: 15
Advanced Oxidation Processes
Fate and transformation of contaminants
Biogeochemical processes
Metrics
H-Index
i10 Index
Citation Counts
29
43
2,469
* Total H IndexRankings
Ranking Based On Selection: 16
biopolymers
nanoparticles
bioorganic chemistry
drug delivery
3D printing
Metrics
H-Index
i10 Index
Citation Counts
27
48
2,242
* Total H IndexRankings
Ranking Based On Selection: 17
Graphene
2D materials
Recycling of e-Waste
Printed electronics
Sensors
Metrics
H-Index
i10 Index
Citation Counts
23
31
1,820
* Total H IndexRankings
Ranking Based On Selection: 18
Solar cells
Energy storage
Material science and Chemical engineering
Metrics
H-Index
i10 Index
Citation Counts
22
31
1,751
* Total H IndexRankings
Ranking Based On Selection: 19
Machine Learning
Data Science
Big Data
Metrics
H-Index
i10 Index
Citation Counts
16
18
1,486
* Total H IndexRankings
Ranking Based On Selection: 20
Hydrometeorology
hydroclimatology
climate and weather model development
hydrology
land-atmosphere coupling
Metrics
H-Index
i10 Index
Citation Counts
16
17
3,808
* Total H IndexRankings
Ranking Based On Selection: 21
drug delivery system
nanoparticles tracking
fluorescence correlation microscopy
Metrics
H-Index
i10 Index
Citation Counts
16
19
954
* Total H IndexRankings
Ranking Based On Selection: 22
Metrics
H-Index
i10 Index
Citation Counts
14
18
882
* Total H IndexRankings
Ranking Based On Selection: 23
Green Catalysis
Hydroxylamine synthesis and its application
Ionic liquids synthesis and its application
Metrics
H-Index
i10 Index
Citation Counts
12
19
647
* Total H IndexRankings
Ranking Based On Selection: 24
Numerical model (CFD LBM DEM) Photovoltaic recycling
water treatment
Metrics
H-Index
i10 Index
Citation Counts
10
10
823
* Total H IndexRankings
Ranking Based On Selection: 25
chemical engineering
Metrics
H-Index
i10 Index
Citation Counts
8
8
175
Amal Rose
Metrics
H-Index
i10-Index
Citation Counts
120
494
51,428
photocatalysis
aggregation
catalysis
energy conversion
nanomaterials
Cyrille Boyer
Metrics
H-Index
i10-Index
Citation Counts
112
365
40,195
Polymer science
Macromolecular engineering
NanoMedicine
Energy
Da Wei Wang
Metrics
H-Index
i10-Index
Citation Counts
78
195
34,404
Electrochemical Energy Technologies
Carbon Materials
2D Materials
Zhaojun Han
Metrics
H-Index
i10-Index
Citation Counts
59
137
9,890
chemical engineering
hydrogen energy
CO2 reduction
catalysis
energy storage
Yansong Shen
Metrics
H-Index
i10-Index
Citation Counts
50
151
7,051
CFD modelling of reacting flow
Process metallurgy
Mineral processing
Renewable energy
Recycling
Kondo Francois Aguey Zinsou
Metrics
H-Index
i10-Index
Citation Counts
48
131
7,825
Energy
Hydrogen storage
Batteries
Catalysis
Nathaniel Corrigan
Metrics
H-Index
i10-Index
Citation Counts
41
53
6,725
Photopolymerization
3D Printing
Polymer Science
Photochemistry
Chemical Engineering
Rita Henderson
Metrics
H-Index
i10-Index
Citation Counts
41
81
8,870
environmental technology
water treatment and quality
separation processes
natural organic matter
algae and cyanobacteria
Guangzhao Mao
Metrics
H-Index
i10-Index
Citation Counts
40
89
5,469
nanotechnology
electrochemistry for sensors
targeted drug delivery
Jie Bao
Metrics
H-Index
i10-Index
Citation Counts
38
116
5,970
process system engineering
process control
dissipativity
distributed control
Dipan Kundu
Metrics
H-Index
i10-Index
Citation Counts
34
44
12,518
Electrochemical Energy Storage
Solid-State Electrochemistry
Materials Science
Emma C Lovell
Metrics
H-Index
i10-Index
Citation Counts
33
48
3,615
Patrick T Spicer
Metrics
H-Index
i10-Index
Citation Counts
32
61
6,171
Colloids
Soft Matter
Microrheology
Microfluidics
Microstructure
Stuart Prescott
Metrics
H-Index
i10-Index
Citation Counts
32
70
3,688
colloids
polymers
interfacial structure
soft matter
Shikha Garg
Metrics
H-Index
i10-Index
Citation Counts
29
43
2,469
Advanced Oxidation Processes
Fate and transformation of contaminants
Biogeochemical processes
Peter R Wich
Metrics
H-Index
i10-Index
Citation Counts
27
48
2,242
biopolymers
nanoparticles
bioorganic chemistry
drug delivery
3D printing
Kamrul Hassan
Metrics
H-Index
i10-Index
Citation Counts
23
31
1,820
Graphene
2D materials
Recycling of e-Waste
Printed electronics
Sensors
Ning Song
Metrics
H-Index
i10-Index
Citation Counts
22
31
1,751
Solar cells
Energy storage
Material science and Chemical engineering
Hassan Masood
Metrics
H-Index
i10-Index
Citation Counts
16
18
1,486
Machine Learning
Data Science
Big Data
Mark R Decker
Metrics
H-Index
i10-Index
Citation Counts
16
17
3,808
Hydrometeorology
hydroclimatology
climate and weather model development
hydrology
land-atmosphere coupling
Wenqian Wang
Metrics
H-Index
i10-Index
Citation Counts
16
19
954
drug delivery system
nanoparticles tracking
fluorescence correlation microscopy
Vaibhav Gaikwad
Metrics
H-Index
i10-Index
Citation Counts
14
18
882
Dongsheng Zhang
Metrics
H-Index
i10-Index
Citation Counts
12
19
647
Green Catalysis
Hydroxylamine synthesis and its application
Ionic liquids synthesis and its application
Shuang Song
Metrics
H-Index
i10-Index
Citation Counts
10
10
823
Numerical model (CFD LBM DEM) Photovoltaic recycling
water treatment
Bich Ngoc Tran
Metrics
H-Index
i10-Index
Citation Counts
8
8
175