Development of Perovskite Oxide-Based Electrocatalysts for Oxygen Evolution Reaction

Perovskite oxides are studied as electrocatalysts for oxygen evolution reactions (OER) because of their low cost, tunable structure, high stability, and good catalytic activity. However, there are two main challenges for most perovskite oxides to be efficient in OER, namely less active sites and low electrical conductivity, leading to limited catalytic performance. To overcome these intrinsic obstacles, various strategies are developed to enhance their catalytic activities in OER. In this review, the recent developments of these strategies is comprehensively summarized and systematically discussed, including composition engineering, crystal facet control, morphology modulation, defect engineering, and hybridization. Finally, perspectives on the design of perovskite oxide-based electrocatalysts for practical applications in OER are given.

Automated summary

Perovskite oxides are studied as electrocatalysts for oxygen evolution reactions due to their low cost, customizable structure, high stability, and good catalytic activity. Two main challenges for efficient OER performance are limited active sites and low electrical conductivity, which can be overcome by strategies such as composition engineering, crystal facet control, morphology modulation, defect engineering, and hybridization. The review comprehensively summarizes recent developments in enhancing catalytic activities of perovskite oxide-based electrocatalysts for practical applications in OER.