| 郑中洋,张飞飏,苗雨欣,刘诗鑫,赵 震.化学通报,2025,88(6):598-612. |
| 炭烟颗粒物催化氧化铈基催化剂活性位构筑策略研究进展 |
| Advances in the Active Sites Construction Strategies of Cerium-Based Catalysts for the Catalytic Oxidation of Soot |
| 投稿时间：2025-01-17 修订日期：2025-02-27 |
| DOI： |
| 中文关键词: 炭烟颗粒 铈基催化剂 活性位构筑 氧气活化 |
| 英文关键词:Soot Ce-based Catalyst Active Site Construction Formation of Active Oxygen |
| 基金项目:国家自然科学基金项目(U1908204,21761162016)资助 |
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| 摘要点击次数: 353 |
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| 中文摘要: |
| 柴油车尾气排放出的气体污染物被认为是造成空气污染的重要因素，因其难以去除，来源广泛，易对环境和人类健康造成损害，因此寻求高效的措施减少其排放成为环境保护的重中之重。炭烟催化氧化后处理技术是应用最广泛也最有效的炭烟消除技术，其中具有优异低温催化活性的廉价催化剂是该技术的核心。当前，铈基催化剂的主要挑战之一是进一步提高其低温催化活性和高温稳定性同时降低催化剂成本。本文从炭烟氧化的反应机理出发，综述了铈基氧化物催化剂的活性位和形貌特征对其表面吸附氧和晶格氧活化性能的影响，综述了铈基氧化物催化剂的活性位和形貌特征对其表面吸附氧和晶格氧活化性能的影响，并提出了其在实际应用中面临的挑战及未来发展方向，为设计高效、经济的催化剂提供了理论指导。未来研究应聚焦于催化剂‘活性-稳定性-经济性’的协同优化，推动铈基催化剂从实验室向工业化跨越。 |
| 英文摘要: |
| Emissions of gaseous pollutants from diesel vehicles are considered a significant factor to air pollution. These emissions are difficult to remove, have widespread sources, and can cause substantial harm to the environment and human health. Therefore, designing efficient measures to reduce their emissions is a critical priority in environmental protection. Catalytic oxidation of soot is the most widely applied and effective technology for soot removal, with cost-effective catalysts possessing superior low-temperature catalytic activity being central to this process. One of the main challenges for cerium-based catalysts at present is to further enhance their low-temperature catalytic activity and high-temperature stability while reducing the cost of the catalyst. This paper reviews the influence of the active sites and morphological characteristics of cerium-based oxide catalysts on the activation of surface adsorbed oxygen and lattice oxygen, based on the reaction mechanism of soot oxidation. It also addresses the challenges faced in practical applications and future development directions, providing theoretical guidance for the design of efficient and cost-effective catalysts. Future research should focus on the synergistic optimization of catalysts in terms of "activity, stability, and cost-effectiveness", thereby facilitating the transition of cerium-based catalysts from laboratory to industrial applications. |
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