氮氧化物的催化还原研究与展望  

Research progress and prospects in catalytic reduction of nitrogen oxides

作　　者：杨赛兰[1] 钟昕[1] 秦帆[1] 陈嵘[1] 

机构地区：[1]武汉工程大学绿色化工过程省部共建教育部重点实验室湖北省新型反应器与绿色化学工艺重点实验室,湖北武汉430074

出　　处：《武汉工程大学学报》2012年第2期6-13,23,共9页Journal of Wuhan Institute of Technology

基　　金：国家自然科学基金项目(21171136);教育部新世纪优秀人才支持计划(NCET-09-0136);武汉工程大学研究生教育创新基金项目(2011-07)

摘　　要：综述了传统催化剂和一些新型复合型催化剂在氮氧化物催化还原方面的研究进展,并展望以氧化铋纳米材料为载体,通过不同方法将金属(Ag、Au、Pt、Pd和Rh等)纳米颗粒负载在氧化铋材料上形成金属-氧化铋纳米复合材料用于NOX的催化还原.利用氧化铋晶体结构中较多的氧空位以及金属纳米颗粒的高催化活性的特点提高复合材料对NOX的催化活性,并降低催化剂成本.期望通过考察复合材料的不同组分、金属负载量、反应温度以及还原剂种类对NOX催化还原效果的影响,寻求具有最佳催化活性的金属-氧化铋复合材料,为进一步的工业化应用奠定基础.The research progress in catalytic reduction of nitrogen oxides（NOX） by different kinds of catalysts,including metal,metal oxide and composited catalysts was summarized.Metal-bismuth oxide nanocomposites were also proposed to be obtained by doping novel metal nanoparticles such as Ag,Au,Pt,Pd and Rh on Bi2O3 nanomaterials,and applied for NOX reduction.The large quantities of the oxygen vacancies in Bi2O3 crystal structure and the high catalytic activity of metal nanoparticles would benefit to improve the catalytic activity of Bi2O3 on NOX reduction and reduce the cost of catalyst.To seek for the best metal-Bi2O3 nanocomposite with highest catalytic activity and great potential applications in industry,the effect of different components of composited materials,metal loading amount,reaction temperature and the kinds of reducing agents on the performance of NOX reduction were also investigated.

关 键 词：氮氧化物 催化还原 氧化铋 金属 纳米复合材料 

分 类 号：TB383[一般工业技术—材料科学与工程] O613.3[理学—无机化学]