Ag‐doped CoP Hollow Nanoboxes as Efficient Water Splitting Electrocatalysts and Antibacterial Materials

Abstract Functionalized designs such as doping can effectively reduce charge transfer impedance and accelerate charge transfer dynamics. In this study, we reported a facile method to synthesize Ag‐doped ZIF‐67 hollow nanoboxes (Ag‐CoP HNBs) by introducing Ag into cobalt‐centered zeolitic imidazolate framework (ZIF‐67). Its unique hollow structure results in higher stability, more active sites and bigger specific surface area with excellent HER and OER performance. Specifically, Ag‐CoP HNBs requires only 97 and 256 mV to achieve a current density of 10 mA cm −2 for HER and OER in 1.0 M KOH, respectively. Meanwhile, merely a voltage of 1.53 V is needed for delivering a current density of 10 mA cm −2 for overall water splitting. Moreover, Ag‐CoP HNBs exhibits excellent antibacterial activity for different bacteria due to the presence of Ag. In conclusion, this study provided a facile, feasible and productive way for developing Ag contained bifunctional electrocatalysts with antibacterial activity, which might have potential use in seawater splitting.