The post-synthetic modification (PSM) of steel–natural frameworks (MOFs) with redox-active molecules below delicate circumstances is a extremely difficult method to switch the inherent properties of MOFs with out altering their crystallinity and different traits. Right here, we ready a single crystal Ni-MOF with a two-dimensional rod-like morphology. Moreover, we utilized the PSM method to include redox-active riboflavin (Rbf) within the Ni-MOF utilizing a inexperienced and facile mechanochemical technique below solvent-free circumstances. The Rbf-doped Ni-MOF (Rbf-Ni-MOF) confirmed a 4-fold improve in conductivity in comparison with the pristine Ni-MOF. We employed the Rbf-Ni-MOF as a multifunctional electrocatalyst in direction of the oxygen evolution response (OER), oxygen discount response (ORR) and oxidation of 5-hydroxymethylfurfural (HMF). As an OER electrocatalyst, the Rbf-Ni-MOF delivered a excessive present density of 580 mA cm−2, which is round 26-fold higher than these of Rbf and the pristine Ni-MOF. The ready Rbf-Ni-MOF confirmed the bottom Tafel slope worth of 0.039 V dec−1 with a minimal overpotential (0.220 V) on the benchmark worth of 10 mA cm−2. Apparently, the Rbf-Ni-MOF additionally confirmed an enhanced ORR exercise with a minimal onset potential of 0.89 V and a bigger present density of 4.85 mA cm−2, that are comparable with these of Pt-based customary electrocatalysts. As well as, the Rbf-Ni-MOF effectively catalyzed the oxidation of HMF to 2,5-furan dicarboxylic acid (FDCA) with greater than 95% faradaic effectivity. DFT evaluation proved that the incorporation of Rbf within the Ni-MOF alters its band buildings and induces a sure conductivity, which helps the Rbf-Ni-MOF show enhanced electrocatalytic exercise. Therefore, this method supplies new insights into the PSM technique for modulating {the electrical} and redox properties of MOFs to be able to make use of them as electrode supplies for power functions.
