Amorphization‐Driven RhRu Bimetallene Enhances Water Dissociation Kinetics

Abstract Phase engineering holds great promise in enhancing the functionalities of nanomaterials by enabling precise control over their phase and morphology. However, achieving this level of control in synthesis remains a significant challenge. In this study, the synthesis of a highly amorphous RhRu (a‐RhRu) bimetallene using a one‐pot wet‐chemical approach is presented. The introduction of a highly amorphous structure allows for the optimization of electron configurations overall structure of a‐RhRu. This catalyst demonstrates exceptional activity in the alkaline hydrogen evolution reaction, with a low overpotential of 32 mV at 10 mA cm⁻² and a high turnover frequency (TOF) of 3.06 H₂ s⁻¹ at an overpotential of 50 mV, surpassing the performance of most reported Rh‐based electrocatalysts. The findings underscore the potential of phase engineering strategies in electrocatalysis.