Dual Co Sites in n─n Type Heterojunction Enable Selective Electrochemical Co‐Valorization of HMF and CO 2

Abstract Electrocatalytic oxidation of biomass‐derived hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA) and electrocatalytic reduction of CO 2 into CO are two highly investigated areas. Efficient electrocatalytic system design that combines CO 2 valorization with biomass upgrading offers a viable solution to produce high‐value chemicals and renewable energy at the same time. Here, we demonstrate an interfacial‐engineered CoS/Co─N─C n─n type heterojunction featuring unique dual Co sites and strong built‐in electric field (BEF) effects, which enables efficient electrochemical coupling of 5‐hydroxymethylfurfural oxidation reaction (HMFOR) and CO 2 reduction reaction (CO 2 RR). The optimized…

• CA
  China Association for Science and Technology

  Award: 2023QNRC0692
• NN
  National Natural Science Foundation of China

  Award: 32425039