The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 5 years. As of Jan 03, 2026, 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 (1.131.752) 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].
Rankings
Chemical reaction engineering | reactor technology | kinetics | catalysi
H-Index Metrics
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H-Index74
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i10 Index496
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Citation Counts25,545
Rankings
Biomass valorization | Catalyst | Adsorption | AOPs | Circular econom
H-Index Metrics
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H-Index60
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i10 Index115
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Citation Counts10,286
Rankings
Electrochemistry | waste to materials | analytics | waste to energ
H-Index Metrics
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H-Index52
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i10 Index185
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Citation Counts10,304
Rankings
Hydrometallurgy | Circular Economy | Electrochemistry | Corrosion | Secondary Raw Material
H-Index Metrics
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H-Index40
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i10 Index89
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Citation Counts4,819
Rankings
Rankings
Rankings
separation technology | chromatography | ion exchange | chemical engineering | biorefiner
H-Index Metrics
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H-Index35
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i10 Index95
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Citation Counts4,016
Rankings
Rankings
Bioprocess Engineering | Fermentation | Downstream proces
H-Index Metrics
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H-Index29
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i10 Index51
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Citation Counts4,301
Rankings
Rankings
Additive Manufacturing | Biobased Material Printing | Laser Materials Processing | Education | Chemical Engineerin
H-Index Metrics
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H-Index23
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i10 Index45
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Citation Counts2,618
Rankings
Electrochemistry | supercapacitors | graphene | Li ion batteries | NM
H-Index Metrics
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H-Index23
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i10 Index38
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Citation Counts1,387
Rankings
Rankings
ALD chemistry | material characterization | batterie
H-Index Metrics
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H-Index21
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i10 Index31
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Citation Counts3,010
Rankings
Energy and Process Technology | Chemical Engineering | Transport Phenomena | Modelin
H-Index Metrics
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H-Index19
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i10 Index32
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Citation Counts1,203
Rankings
Rankings
Electrochemical sensors | Biosensors | Electrochemistry of carbon material
H-Index Metrics
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H-Index18
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i10 Index20
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Citation Counts932
Rankings
electrochemistry | electroanalysis | natural nanomaterial
H-Index Metrics
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H-Index12
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i10 Index14
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Citation Counts393
Rankings
Rankings
Rankings
Rankings
Rankings
Plastic Recycling | Circular Economy | Chemical Engineering | Biofuels | Thermodynamic
H-Index Metrics
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H-Index8
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i10 Index6
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Citation Counts1,028
Rankings
Rankings
Molecular Systems Biology | Single-molecule Tracking | Superresolution Microscop
H-Index Metrics
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H-Index8
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i10 Index5
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Citation Counts146
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