Communication Dans Un Congrès Année : 2024

Electrocatalytic hydrogenation of biomass-derived furfural on structured copper electrodes

Résumé

The rapid electrification and defossilization of chemical processes is a cornerstone of all net zero emission scenarios, with the aim of rapidly and drastically curb CO2 emissions tied to climate change. To accomplish this objective, electrically-powered alternatives to petrochemical processes for the production of carbon-based compounds must be developed. One attractive approach is to directly employ “green electrons” produced from renewable energy sources to power the electrocatalytically-driven chemical transformations of molecules obtained from lignocellulosic biomass. Here, we describe our recent progress using structured copper electrodes for the efficient and selective electrocatalytic hydrogenation of furfural towards furfuryl alcohol or 2-methylfuran. Structured Cu electrodes were developed and applied to the ECH of furfural (an attractive biomass-derived chemical already produced on a large scale). These structured electrodes were tested in neutral and acidic conditions, and displayed tunable selectivity and activity with the pH and temperature. In particular, in neutral condition, furfural was selectively converted to furfuryl alcohol at potentials as high as – 0.2 V vs the reversible hydrogen electrode (RHE), while 2-methylfuran could also selectively be obtained under acidic conditions, albeit with a stronger competition from H2 evolution. We further employed an innovative quasi in-situ photoelectron spectroscopy approach to characterize the nature of adsorbed carbon-containing compounds at the surface of the electrode under operating conditions, allowing to point towards difference in mechanisms between furfural reduction in neutral and acidic conditions.

HAL

Cite hal-04634455 Objet présenté à une conférence M. Prevot, C. Spadetto, C. Hachemi, L. Cardenas, L. Bossert, et al.. Electrocatalytic hydrogenation of biomass-derived furfural on structured copper electrodes. Les journées d'électrochimie 2024, Jul 2024, Saint-Malo, France. ⟨hal-04634455⟩

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Dates et versions

hal-04634455 , version 1 (04-07-2024)

Identifiants

  • HAL Id : hal-04634455 , version 1

Citer

M. Prevot, C. Spadetto, C. Hachemi, L. Cardenas, L. Bossert, et al.. Electrocatalytic hydrogenation of biomass-derived furfural on structured copper electrodes. Les journées d'électrochimie 2024, Jul 2024, Saint-Malo, France. ⟨hal-04634455⟩
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