OOIR: Observatory of International Research

Papers

(The H4-Index of Green Chemistry is 86. 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 2021-11-01 to 2025-11-01.)

Article	Citations
Solvent-free Markovnikov hydroamination of vinylarenes with carboxamides: a heterogeneous catalytic approach using Hβ zeolite	857
Inside front cover	418
Inside back cover	301
Inside front cover	267
Contents list	240
Back cover	229
Contents list	214
Electrochemical C–O bond cleavage of diaryl ethers: upcycling of lignin 4-O-5 models and polyphenylene oxide	195
Front cover	186
Oxygen-harvesting carbon dot photocatalysts for ambient tandem oxidative synthesis of quinazolin-4(3H)-ones	186
Highly efficient sulfurized Re–Ir catalysts for multiple N-methylation of ethylenediamine and its homologous series with CO₂ and H₂ in water solvent	184
Inside front cover	183
Inside back cover	182
Contents list	173
Biobased sunscreen fabrication using Zn-porphyrins from engineered Corynebacterium glutamicum	162
Synthesis of biodegradable PGA-PBC-PGA triblock copolymers and closed-loop recycling via a thermal depolymerization strategy	160
Introduction to green and sustainable batteries	159
Catalyst-free urea synthesis via plasma-driven direct coupling of CO₂ and N₂ under ambient conditions	158
Wood-inspired dual-scale directional channel cellulose bioreactors with high mass transfer efficiency for continuous flow catalytic green conversion	153
Phosphatidylcholine-driven cell-like assembly of lignin for reinforcing and toughening rubber materials	153
Back cover	153
Integrated design of multifunctional reinforced bioplastics (MReB) to synergistically enhance strength, degradability, and functionality	152
Tuning the electronic structure of the Mn–N–C catalyst through XO₂ group (X = S, Se, Te) doping for proton-exchange membrane fuel cells	151
Energy and cost-saving potential of combined carbon capture and conversion: a pioneering design of a process intensification concept harnessing CeO₂ as a dual-functional material	149
Synthesis of α-aminophosphorous derivatives using a deep eutectic solvent (DES) in a dual role	145

‘In-water’, nickel-catalyzed mild preparation of allylic amines employing alcohols: application to ‘all-water’ synthesis of pharmaceuticals	142
Weakening fibril–fibril interactions via an on-demand regulation of hemicellulose phase towards the facile disassembly of lignocellulose heterostructure into approaching native-state elementary	137
From green innovations in oligopeptide to oligonucleotide sustainable synthesis: differences and synergies in TIDES chemistry	128
Oxygen evolution reaction electrocatalysts for green hydrogen production in seawater: enhancement mechanism in catalytic activity and durability	127
Materials from waste plastics for CO₂capture and utilisation	125
Iron-photocatalyzed desulfurizing chlorination with seawater	125
Sustainable protocols for direct C–H bond arylation of (hetero)arenes	123
Syntheses and polymerization of monoterpene-based (meth)acrylates: IBO(M)A as a relevant monomer for industrial applications	120
Tailoring surface reaction pathways by self-assembling a trifluoromethyl-terminated molecular layer to enhance photocatalytic cellulose-to-syngas conversion in pure water	119
Toward the next generation of sustainable aluminum-ion batteries: a review	117
Catalyst-free mechanochemistry as a versatile tool in synthetic chemistry: a review	112
Replacing polyacrylonitrile with Kraft lignin for sustainable carbon fiber manufacturing mitigates carbon emissions	112
Copper-supported catalysts for sustainable PET depolymerization: a cost-effective approach towards dimethyl terephthalate (DMT) production	110
Metal-free decarboxylative C(sp³)–C(sp³) bond formation for the synthesis of unnatural amino acids and peptides via convergent paired electrolysis enabled radical–radical	109
Sustainable lignin-derived hierarchical mesoporous carbon synthesized by a renewable nano-calcium carbonate hard template method and its utilization in zinc ion hybrid supercapacitors	109
Net-zero transition of the global chemical industry with CO₂-feedstock by 2050: feasible yet challenging	109
Polysaccharide-based supramolecular bicomponent eutectogels as sustainable antioxidant materials	107
Choline hydroxide based deep eutectic solvent for dissolving cellulose	106
Novel arylindane diols as sustainable primary antioxidants from lignin	105
Regulating the hydrophobic microenvironment of SnS₂ to facilitate the interfacial CO₂/H₂O ratio towards pH-universal electrocatalytic CO₂ reduction	105
Multi-layered CuO/SiO₂ core–shell structure improves electrocatalytic CO₂-to-n-propanol conversion	104
Sustainable base-mediated chemical upcycling of poly (propylene carbonate) to β-hydroxy sulfides and oxides	103
Biodegradable alginate derivatives obtained by eco-friendly ultrasound technology for more sustainable leather tanning	103
Computational modeling-guided design of deep eutectic solvents for tailoring lignin chemistry during lignocellulose pretreatment	102
Photoelectrocatalytic heteroarene C(sp²)–H borylation	102
Facile synthesis of Pd–Au/BNNS bimetallic catalysts for direct generation of H₂O₂ from H₂ and O₂ under environmentally friendly conditions	102
An in situ phosphorization constructed VP₂@VS₂ nanoflower heterostructure with a modulated d-band center of V for efficient polysulfide adsorption and conversion in lithiu	100
Photoredox catalytic aminomethylation of sulfonylthiazoles	100
Oxidized thiourea derivatives: uncovering new frontiers with resonant acoustic mixing (RAM)	99
Ultra-fast and Eco-friendly Recycling Process for Spent LIBs Using Deep Eutectic Solvents: Mechanism and Life-Cycle Insight	99
Towards a scalable recycling process for ceramics in fuel-electrode-supported solid oxide cells	99
Insights into photoelectrocatalytic lignin oxidation to value-added products using a niobium-doped titanium dioxide photoanode	99
Design and synthesis of covalently tethered “isoG-star” as a recyclable host for selective cesium separation	99
Polymer monomers fabricated from biomass platform molecules over metal-free catalysts	98
Efficient CO₂ electroreduction to n-propanol on a matching cobalt phthalocyanine/copper tandem catalyst	98
Electrosynthesis of benzyl-tert-butylamine via nickel-catalyzed oxidation of benzyl alcohol	97
Design of environmentally degradable polyethylene-like polyesters and eco-friendly recycling via commercial enzymes	96
Additive-free N-methylation reaction synergistically catalyzed by Pt single atoms and clusters on α-MoC using methanol as a sustainable C1 source	95
Hierarchical porous organometallic polymers enable industrial-level acidic CO₂ electroreduction	94
Amino and hydroxyl functionalization of nucleosides via resonant acoustic mixing	94
Effect of pre-treatment of herbaceous feedstocks on behavior of inorganic constituents under chemical looping gasification (CLG) conditions	94
Characterization and molecular simulation of lignin in Cyrene pretreatment of switchgrass	93
Ligand-induced tetrad effect in coordination leaching of ion-adsorption rare earth ores: enhanced recovery of high-value low-lanthanum rare earth concentrates	93
Iridium-catalyzed N-methylation of drug molecules	93
NHC–palladium-catalyzed ionic liquid-accelerated regioselective oxyarylation of alkynes with diaryl ethers	92
Halometallate ionic liquids: thermal properties, decomposition pathways, and life cycle considerations	92
Dibasic esters as green solvents for PVDF membrane preparation	92
Cobalt-catalysed CH-alkylation of indoles with alcohols by borrowing hydrogen methodology	91
Selective C–O bond cleavage enhances aromatics production from lignin-derived platform molecules with ethanol as a hydrogen donor	91
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	90

Tapping into the natural aromatic potential of microbial lignin valorization towards aromatic fine chemicals	90
Does enzymatic catalysis lead to more sustainable chemicals production? A life cycle sustainability assessment of isopropyl palmitate	90
Efficient catalytic degradation of anhydride-cured epoxy resin by amphiphilic molecule catalysts	89
Enhancement of hydrogen production via methanol steam reforming using a Ni-based catalyst supported by spongy mesoporous alumina	89
Expanding the circularity of plastic and biochar materials by developing alternative low environmental footprint sensors	89
Recent advances in ex ante techno-environmental-economic assessment of thermochemical waste or biomass to energy technologies based on process simulation	88
A radical Smiles rearrangement difunctionalization of activated alkenes via desulfonylation and insertion of sulfur dioxide relay strategy	88
Long-lived triplet state carbon nitride (urea-CN_x) catalyzed metal-free photo-ATRP with oxygen acceleration	88
Visible-light-induced iron-catalyzed synthesis of N-aryl amides from nitroarenes and chloroalkanes	88
Organic carbonates as green media: from laboratory syntheses to industrial applications	86
Photo/electrocatalytic site-selective C–H functionalization of 8-aminoquinolines and their analogues	86