CeO_2修饰八面体α-Mn_2O_3催化柴油机碳烟消除  

CeO_2 Modified Octahedron α-Mn_2O_3 Catalysts for Diesel Soot Removal

作　　者：廖黎妮 唐伟婷 杨景云 戴玉桃 纪飞 仇真 徐睿 门勇[1] LIAO Lini;TANG Weiting;YANG Jingyun;DAI yutao;JI fei;QIU Zhen;XU Rui;MEN Yong(School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China)

机构地区：[1]上海工程技术大学化学化工学院,上海201620

出　　处：《上海工程技术大学学报》2019年第1期15-20,共6页Journal of Shanghai University of Engineering Science

摘　　要：采用等体积浸渍法以不同负载量的二氧化铈(CeO_2)修饰八面体α-Mn_2O_3,制备出CeO_2/α-Mn_2O_3复合金属氧化物催化剂.利用X线衍射(XRD)、场发射扫描电子显微镜(FESEM)、氮气吸附脱附对其进行结构及物化性质进行表征,利用程序升温氧化反应对其活性进行评价,研究CeO_2负载量对八面体α-Mn_2O_3催化柴油机碳烟消除的影响.结果表明,负载量为6%CeO_2的催化剂展示了最佳的催化碳烟燃烧活性.The CeO2/α-Mn2O3 composite metal oxide catalyst was prepared by equal volume impregnation method in which octahedral α-Mn 2O 3 was modified by cerium oxide(CeO2) with different mass percentages. X-ray diffraction (XRD),field emission scanning electron microscopy (FESEM),N 2 adsorption-desorption isotherms were used to characterize the catalyst,and temperature programmed oxidation(TPO) was used to evaluate the activity of catalyst. The influence of CeO2 loading over octahedron α-Mn2O3 on the diesel soot combustion was studied. The results show that the catalyst loaded 6% of CeO2 exhibited the best performance of soot combustion.

关 键 词：CeO2/αMn2O3催化剂 形貌效应 碳烟消除 

分 类 号：O643.36[理学—物理化学]