OOIR: Observatory of International Research

Papers

(The H4-Index of Green Chemistry is 84. 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 2022-08-01 to 2026-08-01.)

Article	Citations
Catalyst-free urea synthesis via plasma-driven direct coupling of CO ₂ and N	1464
Heuristic process prediction model for screening optimal green entrainers based on TAC and LCA impacts utilizing PSE concepts	322
Wood-inspired dual-scale directional channel cellulose bioreactors with high mass transfer efficiency for continuous flow catalytic green conversion	272
Polymer monomers fabricated from biomass platform molecules over metal-free catalysts	247
Inside front cover	225
Two-step chemolytic delamination and depolymerization of multilayer laminated packaging films into valuable chemicals	207
(B,P,Co,Fe)-Ni modified on nanowood for boosting seawater urea electro-oxidation	180
Tuning the electronic structure of the Mn–N–C catalyst through XO ₂ group (X = S, Se, Te) doping for proton-exchange membrane fuel cells	178
Additive-free N -methylation reaction synergistically catalyzed by Pt single atoms and clusters on α-MoC using methanol as a sustainable C1 source	168
Oxygen evolution reaction electrocatalysts for green hydrogen production in seawater: enhancement mechanism in catalytic activity and durability	166
Ligand-induced tetrad effect in coordination leaching of ion-adsorption rare earth ores: enhanced recovery of high-value low-lanthanum rare earth concentrates	164
Oxidized thiourea derivatives: uncovering new frontiers with resonant acoustic mixing (RAM)	159
Novel arylindane diols as sustainable primary antioxidants from lignin	158
Contents list	157
Enantiocomplementary synthesis of chiral 2,3-dihydroxy aryl ketones via ThDP-dependent enzymatic catalysis	156
CO ₂ hydrogenation to CH ₃ OH promoted by strong Cu	154
Photoredox catalytic aminomethylation of sulfonylthiazoles	153
Inside back cover	149
Contents list	148
Contents list	147
Green steel production: an overview	142
Biobased sunscreen fabrication using Zn-porphyrins from engineered Corynebacterium glutamicum	140
Synthesis of biodegradable PGA-PBC-PGA triblock copolymers and closed-loop recycling via a thermal depolymerization strategy	139
Aliphatic C–H arylation with heteroarenes without photocatalysts	139
Integrated design of multifunctional reinforced bioplastics (MReB) to synergistically enhance strength, degradability, and functionality	135

Rational catalyst design for acetaldehyde upgrading – an in-depth study on the use of a solid base and the development of a second generation supported N-heterocyclic carbene catalyst	135
Integrating mechanochemical synthesis of a pyridinium-based graphitic ionic framework into an eco-friendly gold recycling process	131
Electrosynthesis of benzyl- tert -butylamine via nickel-catalyzed oxidation of benzyl alcohol	131
Obituary: Roger Arthur Sheldon (1942–2025)	128
Design and synthesis of covalently tethered “isoG-star” as a recyclable host for selective cesium separation	127
Defossilising fuels and chemicals – a systemic analysis from feedstock and technology, to hurdles and enablers	126
Towards safe and sustainable ionic liquids: a critical outlook on industrial and pharmaceutical integration	126
Inside front cover	125
Voltage losses in indoor light harvesting organic photovoltaic devices: a case study of green solvent processed PM6/IT-4Cl devices	125
Selective C–O bond cleavage enhances aromatics production from lignin-derived platform molecules with ethanol as a hydrogen donor	124
Modulation of hydrogen transfer behaviors over Fe/Cu interfacial sites for a boosted electrocatalytic nitrate reduction reaction	124
Modular access to multi-substituted allenones via environmentally friendly organocatalytic C–H allenylation of aldehydes	122
Inside front cover	121
Contents list	120
Electrochemical selective lithium extraction from spent LiFePO ₄ cathode sheets and regeneration via C	120
Efficient CO ₂ electroreduction to n -propanol on a matching cobalt phthalocyanine/copper tandem catal	120
Inside front cover	118
Characterization and molecular simulation of lignin in Cyrene pretreatment of switchgrass	116
Contents list	113
Iridium-catalyzed N -methylation of drug molecules	112
Multi-step oxidative carboxylation of olefins with carbon dioxide by combining electrochemical and 3D-printed flow reactors	111
Front cover	109
Tailoring surface reaction pathways by self-assembling a trifluoromethyl-terminated molecular layer to enhance photocatalytic cellulose-to-syngas conversion in pure water	108
Iron-photocatalyzed desulfurizing chlorination with seawater	108
Introduction to green and sustainable batteries	104
Phosphatidylcholine-driven cell-like assembly of lignin for reinforcing and toughening rubber materials	104
Light-driven ultrafast dual C–C cleavage and coupling of dihydroxyacetone into high-purity carbon monoxide and ethylene glycol	103
Amino and hydroxyl functionalization of nucleosides via resonant acoustic mixing	103
Replacing polyacrylonitrile with Kraft lignin for sustainable carbon fiber manufacturing mitigates carbon emissions	103
Regulating the hydrophobic microenvironment of SnS ₂ to facilitate the interfacial CO ₂ /H	102
Front cover	101
Toward the next generation of sustainable aluminum-ion batteries: a review	101
Back cover	100
Metal-free photocatalysis at charged aqueous interfaces: boosting the photocatalytic oxidative coupling of arylamines to azoaromatics under ambient conditions	100
Solvent-free Markovnikov hydroamination of vinylarenes with carboxamides: a heterogeneous catalytic approach using Hβ zeolite	99
Highly efficient sulfurized Re–Ir catalysts for multiple N -methylation of ethylenediamine and its homologous series with CO ₂	98
A hydrophobic ionic liquid and ZIF-8 co-modified graphene oxide membrane for efficient osmotic energy conversion	97
Towards a scalable recycling process for ceramics in fuel-electrode-supported solid oxide cells	96
Phase-segregated PtNi ₅ rhombic dodecahedra enable excellent electrocatalytic hydrogen evolution in the full pH range	95
Corrosion-resistant microplasma anode arrays for high-temperature molten salt electrolysis and in situ analysis	94
Olefin isomerization-Michael addition cascade in aqueous micelles: a new piperazine-based antifungal chemotype	94
Long-lived triplet state carbon nitride (urea-CN _x ) catalyzed metal-free photo-ATRP with oxygen a	94
Insights into photoelectrocatalytic lignin oxidation to value-added products using a niobium-doped titanium dioxide photoanode	94
Precursor-regulated reconstruction of Cu-based catalysts for efficient electrocatalytic urea synthesis from CO ₂ and nitrate	94
Blowing tough polylactide film enabled by the in situ construction of covalent adaptive networks with epoxidized soybean oil as dynamic crosslinks	93
Oxygen-harvesting carbon dot photocatalysts for ambient tandem oxidative synthesis of quinazolin-4(3 H )-ones	93
Phthalocyanine separator with “chelation-relay” behavior for homogeneous Zn ²⁺ flux and ultra-stable aqueous zinc-ion batteries	93
Inside back cover	91
Impact of linking groups in chelating bis-carbene iridium catalysts for transfer hydrogenation of inorganic carbonates with glycerol	90
Photocatalyst-free H ₂ O-regulated and regiodivergent multicomponent hydrogenation/bifunctional sulfonylation of alkynes	90

Electrochemical ring-opening 1,3-dihydroxylation of arylcyclopropanes with H ₂ O	88
A paired alkaline electrolyzer for furfural oxidation and hydrogen evolution over noble metal-free NiFe/Ni and Co/MXene catalysts	87
Upcycling photovoltaic silicon waste into SiO anode materials	87
Contents list	87
Mechanistic study of novel chemical looping phase separation recovering lithium-ion battery cathode materials with biogas residues	86
Metal-free decarboxylative C(sp ³ )–C(sp ³ ) bond formation for the synthesis of unnatural amino a	86
Synergistically enhanced co-adsorption of HMF and hydroxyl on selenium and oxygen dual vacancies in CeO ₂ -CuNiSe ₂	85
A green chemical protocol for the separation of spent LiFePO ₄ cathode material from Al foil and regeneration	85
Syntheses and polymerization of monoterpene-based (meth)acrylates: IBO(M)A as a relevant monomer for industrial applications	85
Front cover	84
An in situ phosphorization constructed VP ₂ @VS ₂ n	84