Wu Xuanhao, Du Jiaxin, Gao Yanxia, Wang Haiqiang, Zhang Changbin, Zhang Runduo, He Hong, Lu Gaoqing Max, Wu Zhongbiao
Department of Environmental Engineering, Zhejiang University, China Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, 310058, China.
State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
Chem Soc Rev. 2024 Aug 12;53(16):8379-8423. doi: 10.1039/d3cs00919j.
Nitrous oxide (NO) decomposition is increasingly acknowledged as a viable strategy for mitigating greenhouse gas emissions and addressing ozone depletion, aligning significantly with the UN's sustainable development goals (SDGs) and carbon neutrality objectives. To enhance efficiency in treatment and explore potential valorization, recent developments have introduced novel NO reduction catalysts and pathways. Despite these advancements, a comprehensive and comparative review is absent. In this review, we undertake a thorough evaluation of NO treatment technologies from a holistic perspective. First, we summarize and update the recent progress in thermal decomposition, direct catalytic decomposition (deNO), and selective catalytic reduction of NO. The scope extends to the catalytic activity of emerging catalysts, including nanostructured materials and single-atom catalysts. Furthermore, we present a detailed account of the mechanisms and applications of room-temperature techniques characterized by low energy consumption and sustainable merits, including photocatalytic and electrocatalytic NO reduction. This article also underscores the extensive and effective utilization of NO resources in chemical synthesis scenarios, providing potential avenues for future resource reuse. This review provides an accessible theoretical foundation and a panoramic vision for practical NO emission controls.
一氧化二氮（N₂O）分解作为一种减少温室气体排放和应对臭氧层损耗的可行策略，越来越受到认可，这与联合国的可持续发展目标（SDGs）和碳中和目标高度契合。为了提高处理效率并探索潜在的价值利用，最近的进展引入了新型的N₂O还原催化剂和途径。尽管有这些进展，但缺乏全面的比较性综述。在本综述中，我们从整体角度对N₂O处理技术进行了全面评估。首先，我们总结并更新了热分解、直接催化分解（deNO）和N₂O选择性催化还原方面的最新进展。范围涵盖了新兴催化剂的催化活性，包括纳米结构材料和单原子催化剂。此外，我们详细阐述了以低能耗和可持续优点为特征的室温技术的机理和应用，包括光催化和电催化N₂O还原。本文还强调了N₂O资源在化学合成场景中的广泛有效利用，为未来资源再利用提供了潜在途径。本综述为实际的N₂O排放控制提供了易于理解的理论基础和全景视角。
