摘要
挥发性有机物(Volatile Organic Compounds,VOCs)是一类大气环境污染物,危害人身健康,必须严格控制其排放。在消除VOCs的方法中,催化氧化被认为是最有效的方法之一,其消除效果取决于催化剂的性能。简要综述近年来多孔复合金属氧化物(包括钙钛矿型氧化物、类钙钛矿型氧化物、尖晶石型氧化物和六铝酸盐)及其负载过渡金属氧化物和贵金属(合金)催化剂的制备及其氧化消除VOCs的催化性能。比表面积、孔结构、粒子分散度、粒径、吸附氧物种浓度、低温还原性、反应物活化能力或过渡金属氧化物或贵金属(合金)与载体之间的相互作用等是影响催化剂活性的主要因素。此外,就此类研究工作的未来发展趋势还进行了展望。
Most of volatile organic compounds(VOCs)are a class of the atmosphere environment pollutants and are harmful to human health,it is necessary to strictly control their emissions.Among all of the methods for VOCs removal,catalytic oxidation is thought to be one of the efficient pathways,but its removal efficiency is determined by the performance of the catalysts.In this review article,we briefly summarize the preparation and catalytic performance of porous mixed metal oxides(including perovskite-type oxides,perovskite-like oxides,spinel-like oxides,and hexaaluminates)and their supported transition metal oxide and/or noble metal(or alloy)catalysts.It is found that specific surface area,pore structure,particle dispersion,particle size,adsorbed oxygen species concentration,low-temperature reducibility,reactant activation ability or interaction between transition metal oxide or noble metal(alloy)and support are the main factors that influence the catalytic performance.In addition,the development trend in the future work on such a topic has been envisioned.
作者
张兴
裴文波
侯志全
刘雨溪
邓积光
敬林
戴洪兴
Zhang Xing;Pei Wenbo;Hou Zhiquan;Liu Yuxi;Deng Jiguang;Jing Lin;Dai Hongxing(College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China)
出处
《工业催化》
CAS
2020年第4期39-51,共13页
Industrial Catalysis
基金
国家自然科学基金(21677004,21876006)。
关键词
催化化学
挥发性有机物
多孔复合金属氧化物
过渡金属氧化物
负载贵金属催化剂
催化氧化
catalytic chemistry
volatile organic compound
porous mixed metal oxide
transition metal oxide
supported noble metal catalyst
catalytic oxidation
