OOIR: Observatory of International Research

Papers

(The H4-Index of Green Energy & Environment is 53. 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 2021-08-01 to 2025-08-01.)

Article	Citations
Front Cover	530
CoSnO3/C nanocubes with oxygen vacancy as high-capacity cathode materials for rechargeable aluminum batteries	209
An efficient and mild recycling of waste melamine formaldehyde foams by alkaline hydrolysis	192
Back Cover	182
Trail of sulfur during the desulfurization via reactive adsorption on Ni/ZnO	173
MOF membrane boosts electrocatalytic nitrogen reduction on perovskite oxides	171
Polysulfide nanoparticles-reduced graphene oxide composite aerogel for efficient solar-driven water purification	168
2,6-Diaminoanthraquinone modified MXene (Ti3C2T )/graphene as the negative electrode materials for ionic liquid-based asymmetric supercapacitors	163
Harnessing tunable lignin-based carbon quantum dots for sustainable water purification	111
CdS-Enzyme Composite Promotes Photobiocatalytic Conversion of Plastic-derived Lactate to Chiral Chemicals	105
Cell-free biocatalysis coupled with photo-catalysis and electro-catalysis: Efficient CO2-to-chemical conversion	105
Dual-selective silver recovery strategy by simultaneous adsorption-reduction boosted by in-situ magnetic field	101
CAOSA-extracted lignin improves enzymatic hydrolysis of cellulose	98
Semi-closed synthesis of nitrogen and oxygen Co-doped mesoporous carbon for selective aqueous oxidation	98
Recent advances in non-precious metal electrocatalysts for pH-universal hydrogen evolution reaction	96
MOFs derived FeNi3 nanoparticles decorated hollow N-doped carbon rod for high-performance oxygen evolution reaction	95
Bimetallic catalysts as electrocatalytic cathode materials for the oxygen reduction reaction in microbial fuel cell: A review	94
Contents	91
Freestanding and Flexible CNT/Si/Metal Electrodes for High Energy Density Lithium-Ion Batteries with Enhanced Electrochemical Performance	87
Long-cycling and dendrite-free lithium metal anodes via salt chemistry	84
Influence of MnOx deposition on TiO2 nanotube arrays for electrooxidation	84
Recyclable Fe3O4@Polydopamine (PDA) nanofluids for highly efficient solar evaporation	81
Surface-enhanced light harvesting over MOF-derived porous ZnO films for highly efficient QDs-based photoelectrochemical hydrogen generation	80
Improving the stability, lithium diffusion dynamics, and specific capacity of SrLi2Ti6O14 via ZrO2 coating	79
Enhanced CO2 methanation through electronic modification of Ru to Ni in Ni–Al hydrotalcite-derived catalysts	79

Front Cover	77
Insight into Properties and Structures of Ionic Liquids by Machine Learning Molecular Dynamics Simulation	77
Ferric acetylacetonate/covalent organic framework composite for high performance photocatalytic oxidation	75
Unusual thermal properties of graphene origami crease: A molecular dynamics study	74
Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon	70
Carbonized waste milk powders as cathodes for stable lithium–sulfur batteries with ultra-large capacity and high initial coulombic efficiency	69
Conversion of Au(III)-polluted waste eggshell into functional CaO/Au nanocatalyst for biodiesel production	68
Construction of Pd-doped RuO2 nanosheets for efficient and stable acidic water oxidation	64
Mixed plastics waste valorization to high-added value products via thermally induced phase separation and spin-casting	64
Tuning composite solid-state electrolyte interface to improve the electrochemical performance of lithium-oxygen battery	63
The feasibility study of the indium oxide supported silver catalyst for selective hydrogenation of CO2 to methanol	63
Construction of truncated-octahedral LiMn2O4 for battery-like electrochemical lithium recovery from brine	63
Acetone-Mediated Glucose Isomerization over a ZrO2-NC Composite Catalyst	63
Advances in the structure design of substrate materials for zinc anode of aqueous zinc ion batteries	63
Biomass-based N doped carbon as metal-free catalyst for selective oxidation of d-xylose into d-xylonic acid	60
Front Cover	59
Breaking the temperature limit of hydrothermal carbonization of lignocellulosic biomass by decoupling temperature and pressure	59
Pyridinic-N doping carbon layers coupled with tensile strain of FeNi alloy for activating water and urea oxidation	59
Novel high-entropy oxides for energy storage and conversion: From fundamentals to practical applications	59
Increasing the greenness of an organic acid through deep eutectic solvation and further polymerisation	58
Ultra-small UiO-66-NH2 nanoparticles immobilized on g-C3N4 nanosheets for enhanced catalytic activity	57
3D inner-outer asymmetric sponge for enormous-volume emulsion wastewater treatment based on a new “demulsification-transport” mechanism	57
Electro-spraying/spinning: A novel battery manufacturing technology	57
Recent advanced development of stabilizing sodium metal anodes	57
Back Cover	57
Contents	54
Front Cover	54
Continuous synthesis of few-layer MoS2 with highly electrocatalytic hydrogen evolution	53
Contents	53