Integrated electrochemical and chemical system for ampere-level production of terephthalic acid alternatives and hydrogen.

ABSTRACT: 2,5-Furandicarboxylic acid (FDCA), a critical polymer platform molecule that can potentially replace terephthalic acid, coupled hydrogen coproduction holds great prospects via electrolysis. However, the electrosynthesis of FDCA faces challenges in product separation from complex electrolytes and unclear electrochemical and nonelectrochemical reactions during the 5-hydroxymethylfurfural (HMF) oxidation. Herein, an electrochemical/chemical integrated system of alkaline HMF-H₂O co-electrolysis is proposed, achieving distillation-free synthesis of high-purity FDCA by acidic separation/purification and hydrogen coproduction. This system achieves ampere-level current densities of 812 and 1290 mA cm^-2 at potentials of 1.50 and 1.60 V, with nearly 100% FDCA yield and HMF conv

SUBMITTER: Chen L 

PROVIDER: S-EPMC11401954 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature