Thermochemical hydrogen production (TCH) is a promising approach to convert water into hydrogen by utilizing thermal energy from sources such as concentrated solar energy, as opposed to using electricity in electrochemical methods. This process consists of two main steps: first, a material undergoes thermal reduction at elevated temperatures (~ 1300 - 1500 °C) under low oxygen partial pressures (pO2) of ~10-3 -10-5 atm, which results in the formation of oxygen vacancies. Next, the temperature of the system is reduced to ~800 - 1000 °C in the presence of steam, enabling water splitting through material oxidation. The commercial feasibility of TCH is dependent on identifying a material with an optimal reduction enthalpy that supports both the thermal reduction of redox-active cations and their re-oxidation, while also possessing high cycle stability. Perovskite metal oxides have received significant interest as potential TCH materials due to their ability to accommodate high concentrations of oxygen vacancies and their highly tunable thermodynamic properties. However, these materials often exhibit low hydrogen production due to re-oxidation and poor cycle stability challenges.