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 06, 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 (1.131.911) 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
water oxidation | photosystem II | hydrogenases | artificial photosynthesis | hydrogenase model
H-Index Metrics
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H-Index101
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i10 Index467
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Citation Counts39,665
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ultrafast spectroscopy | photosynthesis | biophysics | photochemistry | photophysic
H-Index Metrics
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H-Index83
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i10 Index253
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Citation Counts21,831
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electrochemistry | electrocatalysis | energy conversion and storage | hydrogen energ
H-Index Metrics
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H-Index37
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i10 Index51
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Citation Counts7,315
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Electrochemistry | Hydrogen | Hydrogenases | Spectroelectrochemistry | Bio-inspired catalyst
H-Index Metrics
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H-Index36
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i10 Index56
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Citation Counts6,579
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fuel cells | electrochemistry | electrocatalysis | spectroscop
H-Index Metrics
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H-Index21
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i10 Index29
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Citation Counts1,786
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Bio-inorganic Chemistry | Inorganic Reaction Mechanism | Spectroscop
H-Index Metrics
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H-Index20
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i10 Index24
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Citation Counts2,086
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electrocatalysis | electrochemistry | energy conversion | surface scienc
H-Index Metrics
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H-Index18
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i10 Index22
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Citation Counts4,760
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Hydrogenase | EPR | FTIR | Biophysics | Metalloenzyme
H-Index Metrics
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H-Index17
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i10 Index17
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Citation Counts2,757
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Theoretical Chemistry | Quantum Chemistry | Magnetic Properties | Spectroscop
H-Index Metrics
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H-Index17
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i10 Index20
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Citation Counts2,255
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