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Reduction of 5-Hydroxymethylfurfural to 2,5-Bis(hydroxymethyl)Furan at High Current Density using a Ga-Doped AgCu:Cationomer Hybrid Electrocatalyst
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DOI：10.1002/adma.202312778.png)
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Abstract
En 中文
Hydrogenation of biomass-derived chemicals is of interest for the production of biofuels and valorized chemicals. Thermochemical processes for biomass reduction typically employ hydrogen as the reductant at elevated temperatures and pressures. Here, the authors investigate the direct electrified reduction of 5-hydroxymethylfurfural (HMF) to a precursor to bio-polymers, 2,5-bis(hydroxymethyl)furan (BHMF). Noting a limited current density in prior reports of this transformation, a hybrid catalyst consisting of ternary metal nanodendrites mixed with a cationic ionomer, the latter purposed to increase local pH and facilitate surface proton diffusion, is investigated. This approach, when implemented using Ga-doped Ag-Cu electrocatalysts designed for p-d orbital hybridization, steered selectivity to BHMF, achieving a faradaic efficiency (FE) of 58% at 100 mA cm-2 and a production rate of 1 mmol cm-2 h-1, the latter a doubling in rate compared to the best prior reports. Hydrogenation of biomass-derived chemicals is of interest for the production of biofuels and chemicals. A direct electroreduction of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF) has been developed using a hybrid catalyst. The utilization of ternary metal nanodendrites mixed with a cationomer achieves a BHMF faradaic efficiency (FE) of 58% at 100 mA cm-2 and a production rate of 1 mmol-1 cm-2 h-1. image
Keywords:
2,5-bis(hydroxymethyl)furan
biomass valorization
electrocatalytic reductions
nanodendrites
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