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<p>The development of sustainable, cost-effective catalytic systems for the electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is pivotal for advancing biomass-based economies and valorizing bio-based platform chemicals. Against the backdrop of intensifying focus on biomass resource recycling, the conversion of lignocellulosic agricultural residues, represented by waste fruit shells, into high-performance catalysts has emerged as a promising strategy, yet existing technologies are hampered by cumbersome processes, excessive energy consumption, and suboptimal catalytic efficiency, limiting scalable industrial application. Herein, we reported the fabrication of high-performance metal-free electrocatalysts using abundant waste fruit shells as the sole precursor, which were specifically designed for the electrochemical selective oxidation of HMF to FDCA. The as-prepared waste fruit shell-derived porous carbon catalyst exhibited exceptional catalytic performance: it achieved a FDCA yield of 96.48% and a Faraday efficiency (FE) of 93.01%, along with robust stability over multiple consecutive reaction cycles, demonstrating its potential for long-term practical application. This work couples agricultural waste upcycling with efficient FDCA synthesis, offering a low-cost green solution and advancing biomass-based circular economy.</p>

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Waste Fruit Shells-Derived Porous Carbon for Highly Efficient Electrochemical Oxidation of HMF to FDCA

  • 期刊论文

  • 发表日期：

    2026年4月15日

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  • Jing Lu,
  • Yang Xu,
  • Yu Zhang,
  • Chenxi Cao,
  • Ang Ma,
  • Nuo Liu,
  • Nan Wang,
  • Yi Zhang,
  • Dongxu Jiao,
  • Siqi Li,
  • Song Liu

摘要

The development of sustainable, cost-effective catalytic systems for the electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is pivotal for advancing biomass-based economies and valorizing bio-based platform chemicals. Against the backdrop of intensifying focus on biomass resource recycling, the conversion of lignocellulosic agricultural residues, represented by waste fruit shells, into high-performance catalysts has emerged as a promising strategy, yet existing technologies are hampered by cumbersome processes, excessive energy consumption, and suboptimal catalytic efficiency, limiting scalable industrial application. Herein, we reported the fabrication of high-performance metal-free electrocatalysts using abundant waste fruit shells as the sole precursor, which were specifically designed for the electrochemical selective oxidation of HMF to FDCA. The as-prepared waste fruit shell-derived porous carbon catalyst exhibited exceptional catalytic performance: it achieved a FDCA yield of 96.48% and a Faraday efficiency (FE) of 93.01%, along with robust stability over multiple consecutive reaction cycles, demonstrating its potential for long-term practical application. This work couples agricultural waste upcycling with efficient FDCA synthesis, offering a low-cost green solution and advancing biomass-based circular economy.