The electrochemical approach offers a more direct and quantitative means of evaluating interfacial charge transfer, adsorption characteristics, and catalytic activity than conventional optical or spectroscopic techniques. By capturing real-time changes in electronic states and surface reactivity, this method provides a comprehensive picture of how nanocrystal morphology influences functional performance. Beyond its immediate implications for photocatalysis, this work offers valuable insights into the dynamic behaviour of nanocrystal interfaces, particularly in aqueous and geochemical environments. By establishing a direct link between shape anisotropy, interfacial electrochemical properties, and catalytic performance, our findings contribute to the