Research progress of polarized perovskite type ferroelectric materials for photocatalytic hydrogen production

To address the global energy shortage, hydrogen production as a green energy source has become one of the most prominent research topics over the past decade. Novel and promising ferroelectric materials, exhibiting unique spontaneous polarization capabilities, have shown great potential in the field of photocatalytic hydrogen evolution. Among these materials, perovskites represent a significant group of ferroelectrics, possessing both excellent ferroelectric properties and photocatalytic performance. By focusing on perovskites, we analyze the advantages of their built-in electric field for photocatalytic hydrogen evolution, integrating the domain wall structures of ferroelectrics. Furthermore, we summarize how to fully exploit the unique characteristics of ferroelectrics and highlight recent advancements in their application to photocatalytic hydrogen evolution.