Research progress on the preparation method of high redox catalytic materials

Enhancing the redox properties of catalytic materials can improve their economic viability and selectivity, enabling more efficient catalytic reactions and reducing production costs. The preparation of catalytic materials with high redox activity has become a hot research topic, yet systematic studies still need to be done. This review focuses on the quantitative characterization methods for redox activity, summarizes different preparation methods for catalytic materials with high redox activity, analyzes the chemical and physical mechanisms involved in the preparation process, establishes the correlation between oxygen vacancy defects and catalytic activity, and provides an outlook on future research directions. This study aims to elucidate the influence and limitations of material elemental characteristics, oxygen vacancy properties, and structural properties on the preparation of catalytic materials with high redox activity.