Effect of perovskite electronic structure modulation on catalytic combustion of VOCs

The emission of volatile organic compounds (VOCs) is a serious threat to the environment and human health, and catalytic combustion technology has become an important direction for the treatment of VOCs due to its high efficiency and environmental friendliness. However, traditional catalysts suffer from insufficient low-temperature activity, poor stability, and weak anti-poisoning capability. Perovskite (ABO₃) materials have emerged as highly promising alternative catalysts due to their tunable electronic structure, abundant oxygen mobility, and flexible redox properties. In this paper, we systematically review the effects of the electronic structure of perovskites (e.g. cation defects, B-site elements, oxygen vacancies) on catalytic performance through modulation strategies such as doping modification (elemental substitution at A/B/O sites) and surface reconstruction (acid-base etching). In addition, this paper elucidates the relationship between specific electronic structure parameters (e.g., d-band center position, oxygen vacancy concentration, charge transfer barrier) and catalytic performance by resolving their enhancement mechanisms. These findings provide comprehensive theoretical guidance and actionable technological pathways for developing efficient, stable, and adaptable catalytic materials for VOCs. Finally, machine learning-based high-throughput design, dynamic electronic structure resolution, and scale-up preparation techniques are envisioned to advance perovskite catalysts.