含氮挥发性有机物选择性催化氧化材料研究进展  

Advances in selective catalytic oxidation materials fornitrogen-containing volatile organic compounds

作　　者：赵挺 安伟奇 田宗浩 牛犇 黎刚刚 程杰 郝郑平 ZHAO Ting;AN Weiqi;TIAN Zonghao;NIU Ben;LI Ganggang;CHENG Jie;HAO Zhengping(Research Center for Environmental Material and Pollution Control Technology,University of Chinese Academy of Sciences,Beijing 101408,China)

机构地区：[1]中国科学院大学环境材料与污染控制技术研究中心,北京101408

出　　处：《能源环境保护》2024年第4期101-111,共11页Energy Environmental Protection

基　　金：国家重点研发计划资助项目(2023YFC3707502);国家自然科学基金资助项目(52370123)。

摘　　要：挥发性有机物(VOCs)和氮氧化物(NO_(x))作为细颗粒物(PM_(2.5))和臭氧(O_(3))的重要前体物,其减排与控制刻不容缓。含氮挥发性有机物(NVOCs)作为典型的杂原子VOCs,对大气环境和人体健康造成严重危害。在NVOCs的氧化过程中,实现NVOCs和副产物NO_(x)的协同控制至关重要。选择性催化氧化技术是一种高效处理NVOCs的方法,通过该技术能够将废气中的碳氢矿化为CO_(2)和H_(2)O,同时将氮选择性地氧化为N_(2)。在NVOCs选择氧化技术的研究中,开发具有高活性、高选择性和高稳定性的催化剂至关重要。目前,NVOCs选择氧化技术主要使用铂、钯、银等贵金属催化剂和过渡金属氧化物催化剂。系统分析了贵金属和过渡金属氧化物催化剂在NVOCs选择性氧化中的研究进展,阐述了各种催化剂的优势和局限性,特别是深入分析了各类催化剂上NVOCs选择性氧化的反应机理及其影响因素,旨在为开发高性能的NVOCs选择性氧化催化剂和研究NVOCs选择性氧化反应过程与机理提供参考,进而推动NVOCs高效控制技术的开发,支撑NVOCs的高效净化与控制。Volatile organic compounds(VOCs)and nitrogen oxides(NO_(x)),recognized as pivotal precursors to PM_(2.5)and O_(3),necessitate the implementation of immediate and stringent reduction and control strategies.Nitrogen-containing volatile organic compounds(NVOCs),a quintessential class of heteroatom VOCs,profoundly impact atmospheric quality and public health.Oxidative control technologies targeting NVOCs require the synergistic reduction of NVOCs and the byproduct NO_(x).Selective catalytic oxidation(SCO)has emerged as an effective technique for NVOC treatment,transforming waste gas hydrocarbons into CO_(2)and H_(2)O,while selectively oxidizing nitrogen constituents to N_(2).The development of SCO catalysts for NVOCs is critical,demanding catalysts with exceptional activity,selectivity,and durability.Current research on SCO catalysts focuses on noble metals such as platinum,palladium,silver,and transition metal oxides.This review examines advancements in noble metal and transition metal oxide catalysts for NVOC selective oxidation,outlines the strengths and limitations of various catalysts,and investigates the selective oxidation reaction mechanisms of NVOCs and their determinants on these catalysts.The aim is to provide insights for the innovation of high-performance catalysts designed for NVOC selective oxidation and to elucidate the reaction dynamics and mechanisms,ultimately advancing efficient NVOC control technologies and enhancing their effective purification and management.

关 键 词：含氮挥发性有机物 选择性催化氧化 贵金属催化剂 过渡金属氧化物催化剂 反应机理 

分 类 号：X701[环境科学与工程—环境工程]