Atomic Insights into the Competitive Edge of Nanosheets Splitting Water.

ABSTRACT: The oxygen evolution reaction (OER) provides the protons for many electrocatalytic power-to-X processes, such as the production of green hydrogen from water or methanol from CO₂. Iridium oxohydroxides (IOHs) are outstanding catalysts for this reaction because they strike a unique balance between activity and stability in acidic electrolytes. Within IOHs, this balance varies with the atomic structure. While amorphous IOHs perform best, they are least stable. The opposite is true for their crystalline counterparts. These rules-of-thumb are used to reduce the loading of scarce IOH catalysts and retain the performance. However, it is not fully understood how activity and stability are related at the atomic level, hampering rational design. Herein, we provide simple design rules (Fig

SUBMITTER: Falling LJ 

PROVIDER: S-EPMC11467904 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature