Authors
Chuqian Xiao, Dongqi Liu, Sheng Hu, Xiuming Bu, Shaoyan Wang, Yuhang Li, Xianying Wang
Published in
Angewandte Chemie (International ed. in English). Pages e6581302. Jul 13, 2026. Epub Jul 13, 2026.
Abstract
The electrosynthesis of 2,5-furandicarboxylic acid (FDCA) from 5-hydroxymethylfurfural (HMF) in near-neutral media offers a sustainable alternative to alkaline routes by suppressing HMF degradation and thus mitigating carbon loss. However, it remains challenging to achieve both enhanced activity and long-term durability for the deep oxidation of HMF intermediates into FDCA in a neutral medium. Herein, we report a Ru/Ni─co-modified spinel cobalt oxide catalyst, Ru─CoNiOx, prepared through a scalable strategy. Structural analyses reveal that atomically dispersed Ru species preferentially incorporated into distorted octahedral Co coordination environment, while Ni species are mainly stabilized at tetrahedral Co sites, forming asymmetric [Ruoct─O6] and [Nitet─O4] coordination motifs within the Co3O4 lattice. This tailored coordination environment promotes surface hydroxylation and the transformation of Co(Ni)─OHads/Co(Ni)─OOH, while strengthening the interfacial interaction with HMF. In near-neutral KHCO3 electrolyte, Ru─CoNiOx achieves approximately 91.0% FDCA Faradaic efficiency and 88.2% FDCA yield at 60°C, while showing a high carbon balance of 99.4%. Furthermore, a continuously HMFOR || HER membrane electrode assembly sustains FDCA production at 200 mA cm-2 for over 1700 h at approximately 1.9 V. This work demonstrates an effective strategy for asymmetric coordination regulation in spinel oxides and highlights the promise of near-neutral electrocatalysis for coupled FDCA and H2 production.
PMID:
42438954
Bibliographic data and abstract were imported from PubMed on 13 Jul 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 5
- Comments 0