【摘要】 挥发性有机物（VOCs）是臭氧和PM_2.5生成的重要前驱体，对环境质量和人体健康均构成潜在威胁，因此，控制VOCs排放是实现减排目标的重要策略。热催化氧化技术因其高效性和环境友好性被认为是控制去除VOCs的重要技术之一。贵金属催化剂因其具有低温氧化活性高、稳定性好等优点，受到VOCs催化氧化领域研究者的青睐。为了推动贵金属催化剂体系在VOCs治理领域的应用，同时为同行提供参考，本文针对近年来贵金属催化剂催化氧化VOCs的应用和研究进展进行了归纳整理。基于贵金属催化剂在催化氧化VOCs领域中的特点，围绕贵金属催化剂催化氧化VOCs机制进行总结评述，重点从活性组分、贵金属前驱体、催化剂制备方法、载体种类及金属掺杂改性等多个维度系统地阐述了影响贵金属催化剂性能的因素，同时针对VOCs治理中的实际应用场景总结了催化剂的失活机制并提出了相应的应对策略，最后对贵金属催化剂在VOCs治理领域的未来发展提出展望。更多还原

【Abstract】 In recent years, with the advancement of China’s "3060" dual-carbon strategy, the requirements for environmental quality have been continuously increasing, and air pollution control has entered a new phase of regional collaborative management targeting ozone（O₃） and fine particulate matter(PM_2.5). In this context, volatile organic compounds（VOCs）, as crucial precursors to the formation of O₃ and PM_2.5, have seen their emission control become increasingly urgent. Currently, common VOCs treatment strategies are primarily divided into two categories: recovery technologies and destruction technologies. High-concentration, high-value VOCs are typically first subjected to recovery methods for resource utilization, followed by destruction technologies to ensure compliance with emission standards. For low to medium-concentration VOCs with limited recovery value, destruction methods are mainly employed for purification before emission. Among the various VOCs treatment technologies, thermal catalytic oxidation is considered one of the most promising due to its high economic feasibility and minimal secondary pollution. The core of this technology lies in the selection and application of catalysts. Currently, catalysts used for VOCs catalytic oxidation can be categorized into non-noble metal catalysts（such as metal oxide catalysts, perovskite catalysts（ABO₃）, and spinel catalysts（AB₂O₄）） and noble metal catalysts based on the type of active components. Non-noble metal catalysts, owing to their abundant resources, have become a research hotspot in the field of environmental catalysis. However, compared to noble metal catalysts, non-noble metal catalysts still exhibit certain gaps in catalytic activity and stability, making it difficult to meet the stringent requirements of practical applications, thus necessitating further development and optimization. Noble metal catalysts, due to their long research history, mature application technology, and excellent performance, continue to hold a significant position in practical applications. Therefore, this paper reviewed the research progress of noble metal catalysts in the catalytic oxidation of VOCs. This paper first reviewed the progress in the mechanistic study of noble metal-catalyzed oxidation of VOCs, elaborating on three mechanistic models currently used for VOCs oxidation by noble metal catalysts: Langmuir-Hinshelwood（L-H） model, Eley-Rideal（ER） model, and Mars-van Krevelen（MvK） model. It also discussed the influence of catalyst composition and reaction atmosphere on these mechanisms, highlighting that mechanistic studies were instrumental in targeted improvements of catalyst performance and the regulation of VOCs reaction pathways. Subsequently, the factors affecting the performance of noble metal catalysts in VOCs oxidation were outlined, including the type of noble metal active components, the species of noble metal precursors, catalyst preparation methods, carrier selection, and doping additives. Commonly used noble metal active components in VOCs catalytic oxidation included Pt, Pd, Au, Ag, Ir, Rh, and Ru. The choice of active components was closely related to the type of VOCs, with Pt and Pd being widely used for the catalytic oxidation of various VOCs due to their exceptional activity. The selection of noble metal precursors was crucial as it affected the dispersion of active species, the stability, and the activity of the catalyst during application. Methods to enhance the performance of catalyst carriers included optimizing preparation methods, selecting appropriate carriers, and doping catalysts. These methods focused on improving the redox capabilities of the catalysts and optimizing the adsorption, desorption, and activation behaviors of reactants by adjusting the interactions between metals and carriers and the synergistic effects between metals. Additionally, the challenges faced by noble metal catalysts during VOCs oxidation, such as chemical poisoning, carbon deposition, and thermal deactivation, were discussed. Chemical poisoning occurred when impurities in the feed gas adsorb onto the catalyst surface, blocking active sites. Carbon deposition resulted from the incomplete oxidation of hydrocarbons, leading to the formation of carbonaceous deposits that can deactivate the catalyst. Thermal deactivation occurred due to the sintering of metal particles at high temperatures, reducing the active surface area. Common anti-deactivation methods included optimizing the structure and composition of the catalyst（such as metal doping, carrier modification, and novel structural designs like core-shell structures and MOFs carriers） to reduce the adsorption of harmful substances or promote their decomposition. Finally, the paper pointed out the existing issues in the research of noble metal-catalyzed oxidation of VOCs: firstly, the exhaust gases to be treated often contain nitrogen oxides（NOx）, carbon monoxide（CO）, sulfur dioxide（SOx）, and various VOCs. The coexistence of these components imposed higher demands on catalyst performance, but current research on VOCs oxidation removal mostly focused on single or simple atmospheric conditions, with relatively fewer studies on synergistic removal under complex atmospheres. Secondly, the commonly coexisting toxic substances in exhaust gas, such as water vapor, SO₂, and HCl, pose a serious challenge to the durability of catalysts. The anti-poisoning ability and long-term operational stability of current catalysts in complex environments still need further improvement. Thirdly, noble metal resources were limited and costly, necessitating further research on optimizing loading and dispersion to improve utilization rates. In conclusion, based on the systematic summary and analysis in this paper, future research should pay more attention to the adaptability of noble metal catalysts to complex conditions to promote the continuous development and application of related technologies. This include developing catalysts that could operate efficiently in the presence of multiple pollutants and under varying operational conditions, as well as finding ways to reduce the reliance on expensive noble metals without compromising performance.更多还原