请用专业的学术英语和语法修饰和润色这段话Hydrogen production coupled with biomass upgrading is vital for future sustainable energy developments However most biomass electrooxidation reactions suffer from high working volt

The production of hydrogen in conjunction with biomass upgrading is an essential component of future sustainable energy development. However, the majority of biomass electrooxidation reactions suffer from high working voltage and low current density, which significantly impedes their large-scale industrial applications. In this study, we present an acidic hydrogen production system that combines anodic ascorbic acid (AA) electrooxidation with cathodic hydrogen evolution. In contrast to conventional organic oxidation, which involves slow kinetics in the cleavage of C-H and O-H bonds, the highly active enol structure of AA facilitates an ultralow overpotential of only 12 mV@10 mA/cm2 when using Fe single-atom catalysts, and achieves an impressive 1 A/cm2 at only 0.75 V (vs. RHE) with approximately 100% Faraday efficiency for hydrogen production. Moreover, the fabricated two-electrode membrane-free electrolyser delivers an industrial current density of 2 A/cm2@1.1 V at 60 ℃ (2.63 kWh/Nm3), which requires only half of the electricity consumption in conventional water electrolysis (~5 kWh /Nm3). This work represents a novel approach to achieving large-scale hydrogen production from biomass.