In-situ total X-ray scattering reveals the structural evolution of SrIrO₃ during the oxygen evolution reaction.

ABSTRACT: Despite the importance of oxygen evolution reaction (OER) catalysts in energy conversion applications, the time-resolved dynamics of their amorphous phases remain elusive. Understanding the structural evolution of OER catalysts is pivotal to improve their design and sustainability and increase the energy conversion efficiency. SrIrO₃ is a promising OER catalyst for achieving high energy conversion efficiencies, but it has not been sufficiently characterized in terms of its phase dynamics during operation. Herein, in-situ total X-ray scattering measurements and pair distribution function analysis are used to probe time-resolved structural changes in an IrO_x/SrIrO₃ catalyst during OER, revealing the occurrence of persistent Ir-O bond shortening and dynamic st

SUBMITTER: Kobayashi K 

PROVIDER: S-EPMC12799602 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature