OOIR: Observatory of International Research

Papers

(The H4-Index of Current Opinion in Green and Sustainable Chemistry is 39. 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 2021-04-01 to 2025-04-01.)

Article	Citations
Editorial Board	175
Affinity of deep eutectic solvents with aromatic molecules and aromatic nanostructures in chemical transformations	148
Current scenario and challenges in recycling of human urine generated at source in rail coaches as resource	144
Editorial Board	93
Contents	81
Contents	81
Cutting-edge materials combining zerovalent iron applied to the photocatalytic treatment of organic contaminants of emerging concern in wastewater	80
Current progress on rational design of porous MOF-derived transition metal–nitrogen–carbon as oxygen reduction reaction catalysts for proton exchange membrane fuel cells	80
Introduction of machine learning and artificial intelligence in biofuel technology	77
Direct ammonia fuel cells for power generation: Recent technological advances and mobility applications	77
Combination of DES and macrocyclic host molecules: Review and perspectives	75
Editorial overview: Metrics for green chemistry (2022)	74
Editorial Board	65
Editorial overview: Synthetic enzymes: a key tool in sustainable chemistry	64
Editorial Board	63
Conference report: 5th Green and Sustainable Chemistry Conference, November 10–11, 2020	60
Editorial overview: Heterogeneous biocatalysis for sustainable chemistry 2021	60
Green and sustainable solvents for biocatalytic oxidations	59
Biodegradable chelate-assisted phytoextraction of metals from soils and sediments	58
Microplastics in fisheries and aquaculture: implications to food sustainability and safety	57
Regulation of plastic from a circular economy perspective	53
Recent advances in thermocatalytic ammonia synthesis and decomposition	52
Artificial enzymes with multiple active sites	52
Lab-scale insights into green metal–organic framework sorbents for gas separation or purification	51
Sustainable chemistry in adaptive agriculture: A review	49

Machine learning and process systems engineering for sustainable chemical processes–A short review	48
Recent strategies for improving the performance of ionic liquids as battery electrolytes	47
Editorial overview: Electrochemical synthesis 2022	46
Sensors as green tools in analytical chemistry	46
Recent progress and future prospects of silicon solar module recycling	45
Biobased chemicals: An editorial review	44
Supramolecular artificial photosynthetic systems: From assembly to bionics	44
Engineering approaches for O2-dependent enzymes	42
Co-cultures and synthetic microbial communities for green chemical production	41
Green synthesis and sustainable processing routes	41
Electrochemical CO2 reduction with earth-abundant metal catalysts	39
Recent progress on ammonia cracking technologies for scalable hydrogen production	39
Coupling light with biocatalysis for sustainable synthesis—very recent developments and future perspectives	39
Deep eutectic solvents for synthesis of 5-hydroxymethylfurfural	39