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
Chemical Engineering
Sonochemistry
Cavitation
Wastewater treatment
Metrics
H-Index
i10 Index
Citation Counts
101
356
36,226
* Total H IndexRankings
Ranking Based On Selection: 2
Catalysis
Process Chemistry
Metrics
H-Index
i10 Index
Citation Counts
74
314
18,843
* Total H IndexRankings
Ranking Based On Selection: 3
Chemical Engineering
Membrane Science and Technology
Separation Processes
Polymer Science
Metrics
H-Index
i10 Index
Citation Counts
54
121
11,403
* Total H IndexRankings
Ranking Based On Selection: 4
membrane separation
Metrics
H-Index
i10 Index
Citation Counts
50
142
10,400
* Total H IndexRankings
Ranking Based On Selection: 5
Process Chemistry
Membrane processes
Biofuels
Salt & Marine Chemicals
Solar driven reactions
Metrics
H-Index
i10 Index
Citation Counts
47
116
8,175
* Total H IndexRankings
Ranking Based On Selection: 6
Chemical Engineering
Sustainable and Environmental Engineering
Nanomaterials
Polymer and Paints
Anticorrosive Coatings
Metrics
H-Index
i10 Index
Citation Counts
46
82
7,912
* Total H IndexRankings
Ranking Based On Selection: 7
Environmental Health
Endocrine disruptive compounds
Adsoprtion
Bioelectrochemical Treatment
Metrics
H-Index
i10 Index
Citation Counts
45
228
10,519
* Total H IndexRankings
Ranking Based On Selection: 8
Synthesis of Organic Dyes
Photoredox Catalysis(C-H Activation)
Organic Solar Cell
Metrics
H-Index
i10 Index
Citation Counts
45
191
7,802
* Total H IndexRankings
Ranking Based On Selection: 9
Chemical Sciences
Metrics
H-Index
i10 Index
Citation Counts
43
85
5,610
* Total H IndexRankings
Ranking Based On Selection: 10
Inflammation
Diabetes
PreclinicalToxicology
Metrics
H-Index
i10 Index
Citation Counts
41
78
4,947
* Total H IndexRankings
Ranking Based On Selection: 11
Microbial Biotechnology
Metrics
H-Index
i10 Index
Citation Counts
41
109
6,830
* Total H IndexRankings
Ranking Based On Selection: 12
Biofuels by Pyrolysis
CO2 Conversion
Molecular Design
Metrics
H-Index
i10 Index
Citation Counts
41
116
5,243
* Total H IndexRankings
Ranking Based On Selection: 13
Food Technology
Biotechnology
Environmental Science
Metrics
H-Index
i10 Index
Citation Counts
40
91
6,504
* Total H IndexRankings
Ranking Based On Selection: 14
biopolymers
bioplastics
rheology
biomass
polymer physics
Metrics
H-Index
i10 Index
Citation Counts
39
73
5,737
* Total H IndexRankings
Ranking Based On Selection: 15
Organic optoelelctronics
polymer solar cells
organic solar cells
peroveskite solar cells
hybrid solar cells
Metrics
H-Index
i10 Index
Citation Counts
39
61
6,204
* Total H IndexRankings
Ranking Based On Selection: 16
solar cell
ion sensor
Metrics
H-Index
i10 Index
Citation Counts
38
53
42,610
* Total H IndexRankings
Ranking Based On Selection: 17
Transport Phenomena
Fluid Mechanics
Membrane Separations
Metrics
H-Index
i10 Index
Citation Counts
38
103
5,222
* Total H IndexRankings
Ranking Based On Selection: 18
Polymer
Metrics
H-Index
i10 Index
Citation Counts
37
71
4,848
* Total H IndexRankings
Ranking Based On Selection: 19
Energy Storage System
Fuel Cell
Metrics
H-Index
i10 Index
Citation Counts
37
102
4,596
* Total H IndexRankings
Ranking Based On Selection: 20
perovskite solar cells
perovskite/Si tandem solar cells
Metrics
H-Index
i10 Index
Citation Counts
36
54
7,381
* Total H IndexRankings
Ranking Based On Selection: 21
Metrics
H-Index
i10 Index
Citation Counts
36
69
5,628
* Total H IndexRankings
Ranking Based On Selection: 22
Metrics
H-Index
i10 Index
Citation Counts
36
55
3,783
* Total H IndexRankings
Ranking Based On Selection: 23
Kinetics and Catalysis
Reactions and Separations
Metrics
H-Index
i10 Index
Citation Counts
36
75
5,844
* Total H IndexRankings
Ranking Based On Selection: 24
Metrics
H-Index
i10 Index
Citation Counts
35
61
5,221
* Total H IndexRankings
Ranking Based On Selection: 25
Li Batteries
Metrics
H-Index
i10 Index
Citation Counts
35
91
3,673
Parag Gogate
Metrics
H-Index
i10-Index
Citation Counts
101
356
36,226
Chemical Engineering
Sonochemistry
Cavitation
Wastewater treatment
Lakshmi Kantam Mannepalli
Metrics
H-Index
i10-Index
Citation Counts
74
314
18,843
Catalysis
Process Chemistry
Sridhar S
Metrics
H-Index
i10-Index
Citation Counts
54
121
11,403
Chemical Engineering
Membrane Science and Technology
Separation Processes
Polymer Science
Kew-Ho Lee
Metrics
H-Index
i10-Index
Citation Counts
50
142
10,400
Pushpito K Ghosh
Metrics
H-Index
i10-Index
Citation Counts
47
116
8,175
Process Chemistry
Membrane processes
Biofuels
Salt & Marine Chemicals
Solar driven reactions
Dipak Pinjari
Metrics
H-Index
i10-Index
Citation Counts
46
82
7,912
Chemical Engineering
Sustainable and Environmental Engineering
Nanomaterials
Polymer and Paints
Anticorrosive Coatings
A Kiran Kumar
Metrics
H-Index
i10-Index
Citation Counts
45
228
10,519
Environmental Health
Endocrine disruptive compounds
Adsoprtion
Bioelectrochemical Treatment
Surya Prakash Singh
Metrics
H-Index
i10-Index
Citation Counts
45
191
7,802
Synthesis of Organic Dyes
Photoredox Catalysis(C-H Activation)
Organic Solar Cell
Rv Jayaram
Metrics
H-Index
i10-Index
Citation Counts
43
85
5,610
Madhusudana Kuncha
Metrics
H-Index
i10-Index
Citation Counts
41
78
4,947
Inflammation
Diabetes
PreclinicalToxicology
Prakasham Reddy Shetty
Metrics
H-Index
i10-Index
Citation Counts
41
109
6,830
Microbial Biotechnology
VG Gaikar
Metrics
H-Index
i10-Index
Citation Counts
41
116
5,243
Biofuels by Pyrolysis
CO2 Conversion
Molecular Design
SS Lele
Metrics
H-Index
i10-Index
Citation Counts
40
91
6,504
Food Technology
Biotechnology
Environmental Science
Dongyeop X Oh
Metrics
H-Index
i10-Index
Citation Counts
39
73
5,737
biopolymers
bioplastics
rheology
biomass
polymer physics
Seo-Jin Ko
Metrics
H-Index
i10-Index
Citation Counts
39
61
6,204
Organic optoelelctronics
polymer solar cells
organic solar cells
peroveskite solar cells
hybrid solar cells
Nam Joong Jeon
Metrics
H-Index
i10-Index
Citation Counts
38
53
42,610
Ashwin Patwardhan
Metrics
H-Index
i10-Index
Citation Counts
38
103
5,222
Transport Phenomena
Fluid Mechanics
Membrane Separations
Jeyoung Park
Metrics
H-Index
i10-Index
Citation Counts
37
71
4,848
Young Taik Hong
Metrics
H-Index
i10-Index
Citation Counts
37
102
4,596
Energy Storage System
Fuel Cell
Geunjin Kim
Metrics
H-Index
i10-Index
Citation Counts
36
54
7,381
perovskite solar cells
perovskite/Si tandem solar cells
Hyunju Chang
Metrics
H-Index
i10-Index
Citation Counts
36
69
5,628
Song Yun Cho
Metrics
H-Index
i10-Index
Citation Counts
36
55
3,783
Prakash Vaidya
Metrics
H-Index
i10-Index
Citation Counts
36
75
5,844
Kinetics and Catalysis
Reactions and Separations
Hyun Gil Cha
Metrics
H-Index
i10-Index
Citation Counts
35
61
5,221
Yongku Kang
Metrics
H-Index
i10-Index
Citation Counts
35
91
3,673