Interfacial Ruthenium Activation of Nickel Hydroxide Enabling Industrial-Level Bio-Plastic Monomer, 2,5-Furandicarboxylic Acid, Production.

Authors

Lin Chen, Yixuan Wang, Chunxiao Gong, Lujiang Xu, Hyoyoung Lee

Published in

Small (Weinheim an der Bergstrasse, Germany). Oct 23, 2026. Epub Oct 23, 2026.

Abstract

2,5-Furandicarboxylic acid (FDCA) is regarded as a key bio-derived platform chemical capable of replacing fossil-based terephthalic acid, and its electro-refining coupled with hydrogen production holds great promise. However, sluggish reaction kinetics arising from the insufficient adsorption of HMF intermediates and hydroxyl species (^*OH) limit ampere-level co-production of FDCA and H₂. Herein, a strategy is proposed to optimize the co-adsorption of key intermediates and ^*OH through Ru-induced interfacial activation of the Ni(OH)₂ catalyst. Experimental and theoretical analyses show that Ru incorporation modulates the interaction with HMF and ^*OH, facilitates electron transfer, and reduces the energy barrier of the rate-determining step (HMFCA^* → HMFCA^* + ^*OH), thereby markedly accelerates HMF electrooxidation. The resulting electrocatalyst delivers industrial-level current densities of 589 and 1006 mA cm^-2 at 1.50 and 1.60 V, respectively, while maintaining over 99% FDCA selectivity and HMF conversion.

PMID:
42909459
Bibliographic data and abstract were imported from PubMed on 23 Oct 2026.

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