摘要
机动车尾气污染物造成了严重的生态环境问题,而催化净化是控制尾气排放、减少污染最有效的手段.铈基材料具有优良的储释氧性能和氧化还原能力,是机动车尾气催化消除领域必不可少的组分之一.自上世纪七十年代被用于催化消除机动车尾气以来,铈基催化材料得到了广泛关注和研究.对铈基材料在尾气催化消除领域所起到的作用进行梳理,有助于对现有催化剂进行结构优化,同时能够将铈基材料的应用范围扩大到相关领域.本文对铈基材料在机动车催化后处理不同环节中的研究和应用进行了归纳,并对其在机动车尾气后处理过程中的反应过程进行了总结.最后,基于尾气处理行业的发展前景,本文对铈基催化材料未来的发展方向提出了展望.
Vehicle exhaust pollutants cause serious ecological problems,and catalytic purification is one of the most effective means to control exhaust emissions and reduce pollution.Ceria-based materials have excellent oxygen storage capacity and good redox ability,and are one of the essential components in the field of catalytic elimination pollutants of vehicle exhausts.Since they have been widely used for the catalytic elimination pollutants of vehicle exhausts in the 1970s,ceria-based catalytic materials have received extensive attention and research.The role of ceria-based materials in the field of exhaust gas catalytic abatement can be reviewed to help optimize the structure of existing catalysts and to expand the application of ceria-based materials to related fields.Herein,we summarize the research and application of ceria-based materials in different aspects of the vehicle exhaust aftertreatment,and the reaction process in the aftertreatment system of vehicle exhaust.Finally,based on the development prospect of the exhaust gas treatment industry,we present a perspective on the future development direction of cerium-based catalytic materials.
作者
徐俊天
刘庆龙
杨鹏
岳军
王刚
金炜阳
蔡彦迪
谭伟
高飞
董林
XU Juntian;LIU Qinglong;YANG Peng;YUE Jun;WANG Gang;JIN Weiyang;CAI Yandi;TAN Wei;GAO Fei;DONG Lin(State Key Laboratory of Pollution Control and Resource Reuse,School of Environment,Nanjing University,Nanjing,210023,China;Jiangsu Key Laboratory of Vehicle Emissions Control,Nanjing University,Nanjing,210023,China;Wuxi Weifu Environmental Catalysts Co.Ltd,Wuxi,214028,China)
出处
《环境化学》
CAS
CSCD
北大核心
2023年第6期2003-2017,共15页
Environmental Chemistry
基金
国家自然科学基金(21972063)
江苏省自然科学基金(BK20200012)资助..
关键词
机动车尾气
催化净化
稀土
铈基材料
vehicle exhaust gas
catalytic elimination
rare earth
ceria-based materials
