A research team from National Taiwan University led by Prof. Chih-Jung Chen has developed an innovative electrochemical platform that efficiently converts biomass into high-value chemicals while simultaneously generating hydrogen fuel. Published in the Chemical Engineering Journal, the team introduced a 'redox reservoir' system to decouple the oxidation of 5-hydroxymethylfurfural (HMF) from the hydrogen evolution reaction (HER), minimizing side reactions and enhancing control over each process. The platform achieved a 97.4% yield of 2,5-furandicarboxylic acid (FDCA) from high HMF concentrations, approaching industrial levels. The regeneration of nickel oxyhydroxide maintained a Faradaic efficiency of 96.0% during HER, with an overall high voltage efficiency of 94.8%. By eliminating supporting electrolytes and membranes, the system reduces energy demands, material costs, and simplifies downstream purification. This breakthrough paves the way for green chemical synthesis and offers a scalable and sustainable pathway for producing bio-based chemicals and clean hydrogen, contributing to decarbonizing the chemical industry and promoting environmentally responsible transformations.