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The catalyst retained a layered structure even after reduction, which was confirmed by Fourier\u2010transform infrared spectroscopy and powder X\u2010ray diffraction analyses. Among the prepared catalysts, ruthenium on magnesium\u2013iron (Ru\/MgFe) showed the best activity for 5\u2010hydroxymethylfurfural oxidation under mild conditions in an aqueous medium (98.3% conversion at 120\u00a0\u00b0C, 3 h, and 30 bar O<jats:sub>2<\/jats:sub>), with the formation of 2, 5\u2010 furandicarboxylic acid (61.5%) as a major product along with 5\u2010formyl 2\u2010furancarboxylic acid and 2,5\u2010diformylfuran as minor products. The highly dispersed metallic ruthenium on the surface of HT favored better activity. In addition, from the solvent studies, green solvent water showed higher activity than the other organic solvents. The activity of the catalyst reduced after the first cycle but regained upon treatment under a CO<jats:sub>2<\/jats:sub> atmosphere, which facilitated the regeneration of surface basicity and hence helped in the reactivation of the catalyst. Overall, this work demonstrates that finely dispersed ruthenium on MgFe hydrotalcite (MgFe\u2010HT) facilitates the oxidation of 5\u2010hydroxymethylfurfural (HMF) to 2,5\u2010furandicarboxylic acid (FDCA). The Ru\u2010dispersed MgFe\u2010HT exhibits a high surface area (61.5 m<jats:sup>2<\/jats:sup>\/g) along with surface basicity and redox properties, which contribute to a high HMF conversion (&gt;99%) and a moderate FDCA yield (73.3%).<\/jats:p>","DOI":"10.1002\/asia.202500505","type":"journal-article","created":{"date-parts":[[2025,6,10]],"date-time":"2025-06-10T05:21:51Z","timestamp":1749532911000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Oxidation of 5\u2010Hydroxymethylfurfural Using Ru Supported Mg\u2013Fe Hydrotalcite Materials"],"prefix":"10.1002","volume":"20","author":[{"given":"Peringayi","family":"Aswin","sequence":"first","affiliation":[{"name":"Inorganic Materials &amp; Heterogeneous Catalysis Laboratory Department of Chemistry School of Physical Sciences, Central University of Kerala  Kasaragod Kerala 671320 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