OOIR: Observatory of International Research

Papers

(The H4-Index of Sustainable Energy & Fuels is 40. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-01-01 to 2026-01-01.)

Article	Citations
Revealing the impact of the host-salt non-stoichiometry on the performance of perovskite solar cells	281
Ultrathin electron and proton-conducting membranes for nanoscale integrated artificial photosystems	226
A rational strategy for substantially enhancing the solar-utilization efficiency and organic-pollutant-degradation rate via mediated central processing unit filling	176
Photocatalytic CO₂ reduction to methanol integrated with the oxidative coupling of thiols for S–X (X = S, C) bond formation over an Fe₃O₄/BiVO₄ composite	125
Front cover	118
The synergistic effect of fluorine atom and alkyl chain positions in enhancing organic photovoltaic open-circuit voltage and morphology miscibility	115
Back cover	111
Back cover	108
Inside front cover	102
Correction: Photocatalytic CO₂ reduction to methanol integrated with the oxidative coupling of thiols for S–X (X = S, C) bond formation over an Fe₃O₄/BiVO₄	100
Microbubble synthesis of hybridised bacterial cellulose–gelatin separators for multifunctional supercapacitors	94
Inside front cover	84
Correction: Tribo-piezoelectric nanogenerators for energy harvesting: a first-principles study	82
Back cover	71
Front cover	71
Hydrodeoxygenation reactivity of the carbonyl group and carboxyl group and their interaction: taking 2-pentanone, valeric acid, and levulinic acid as examples	66
Contents list	64
Contents list	63
Comprehensive insights into the impact of straw types, temperature and atmosphere on pyrochar properties and its enhancement potential for anaerobic digestion	59
Perspectives and advances in consolidated bioprocessing strategies for lignin valorization	57
Methane conversion coupled with hydrogen production from water using Au/Ga₂O₃ photocatalysts prepared by different methods	56
Biocrude production via hydrothermal liquefaction of Canadian lignocellulosic residues for sustainable transportation: screening, catalytic effect, and modelling	56
Hard–soft carbon decorated Na₃V₂(PO₄)₃ cathode for high-rate and stable sodium-ion batteries	55
Enhanced room-temperature thermoelectric power factor of β-Zn₄Sb₃ thin films via surface roughness optimization	54
Free-standing P-doped Fe₂O₃/ZnO nanotubes as a bifunctional electrocatalyst for electrochemical water splitting	52

Hollow Sb nanocrystals confined in N, S Co-doped carbon nanofibers boosting sodium-ion transport for high-performance sodium-ion batteries	51
Front cover	50
Enhanced performance of carbon-based CsPbI₂Br perovskite solar cells using interfacial modifiers	49
Front cover	47
Highly efficient Ru-decorated CeO₂ for photocatalytic hydrogenation and cyclization of levulinic acid to γ-valerolactone	46
Fusion of nitro isomers of naphthoquinone enhances capacity and cyclability in Zn-ion batteries	45
Sulfhydryl modified silver-titanium oxide to effectively and stably promote the electrocatalytic reduction of carbon dioxide to CO	44
Dual engineering of electronic structure and nanoconfinement for high-efficiency ammonia borane hydrolysis over PtCo-oxCNH catalysts	44
The annual-hydrogen-yield-climatic-response ratio: evaluating the real-life performance of integrated solar water splitting devices	44
A bifunctional electrocatalyst for alkaline seawater splitting using ruthenium doped nickel molybdenum phosphide nanosheets	43
Hierarchical layered nickel–iron double hydroxide/carbon nanotube fiber electrode for constructing asymmetric fiber supercapacitor	42
Rapid laser synthesis of medium-entropy alloy nanostructures for neutral seawater electrolysis	41
Solar to hydrogen efficiency of 28.2% under natural sunlight achieved by a combination of five-junction concentrator photovoltaic modules and electrolysis cells	41
Nitro-oxidized carboxylated cellulose nanofiber based nanopapers and their PEM fuel cell performance	40
Synthesis of urea from CO₂ and N₂ fixation under mild conditions using polarized hydroxyapatite as a catalyst	40