Article Dans Une Revue Chemistry–Methods Année : 2025

Exploring Stabilized Alumina Phase Coatings as a Catalyst Carrier for Oxalic Acid Hydrogenation

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The catalytic hydrogenation of oxalic acid to glycolic acid (GA) and/or ethylene glycol (EG) has been identified as a promising route for producing value-added chemicals and potential hydrogen carriers. GA serves as a precursor for plastics and cosmetics, while EG can function as a liquid organic hydrogen carrier. In this work, we present an eco-friendly and scalable bottom-up approach to fabricate a Ru-based hydrogenation catalyst on θalumina-coated SiC foam. Nitrogen doping of the MOF(Al)-based template enhances the mechanochemical stability of the resulting alumina coating by significantly modifying its surface texture and morphology. This phasestabilization method enabled higher OA conversion compared to γ-alumina and yielded nearly equimolar amounts of GA and EG under continuous-flow conditions (120 °C, 50 bar). These findings demonstrate the potential of this synthesis approach for producing stabilized metal oxide phases with tailored morphologies that improve catalyst performance.

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hal-05325518 , version 1 (22-10-2025)

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Limor Ben Neon, Issam Nciri, Martin Drobek, Mikhael Bechelany, Christophe Coutanceau, et al.. Exploring Stabilized Alumina Phase Coatings as a Catalyst Carrier for Oxalic Acid Hydrogenation. Chemistry–Methods, 2025, pp.e202500085. ⟨10.1002/cmtd.202500085⟩. ⟨hal-05325518⟩
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