典型文献
Controllable synthesis of argentum decorated CuOx@CeO2 catalyst and its highly efficient performance for soot oxidation
文献摘要：
In this paper,CuOx@Ag/CeO2 catalysts were synthesized by simple wet-chemical method and equal volume impregnation method.The obtained catalysts were subjected to soot temperature programmed oxidation(soot-TPO)activity tests and were further characterized by various techniques such as X-ray diffraction(XRD),transmission electron microscopy/high-resolution transmission electron microscopy(TEM/HR-TEM),N2 physisorption,X-ray photoelectron spectroscopy(XPS)and H2-temperature pro-grammed reduction(H2-TPR).The results show that CuOx@Ag/CeO2 synthesized presents well controlled core-shell structures,with nano-cube like Cu2O as the core and Ag decorated polycrystalline CeO2 grafting layers as the shell.Such core-shell structured CuOx@Ag/CeO2 can successfully construct a sec-ondary oxygen delivery channel(CuOx → CeO2 → Ag)to effectively transfer bulk oxygen of the catalyst to the soot,resulting in its excellent soot oxidation activity compared to CuOx@CeO2.The potential benefiting effect by Ag introduction over Cu@Ag/Ce can be concluded as:(ⅰ)pumping lattice oxygen and accelerating gaseous O2 dissociation to generate significantly increased active surface oxygen content;(ⅱ)modulating a moderate surface oxygen vacancies concentration to maintain more highly active O2 species.
文献关键词：
中图分类号：
作者姓名：
Jie Wan;Yanjun Liu;Yuanyuan Zhou;Han Liu;Gongde Wu;Jianfei Kan;Min Li;Duan Weng;Xiaodong Wu
作者机构：
Energy Research Institute,Nanjing Institute of Technology,Nanjing 211167,China;Key Laboratory of Advanced Materials of Ministry of Education,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;School of Civil Engineering,Southeast University,Nanjing 211189,China;State Key Laboratory of Digital Household Appliances,Haier Group Technique R&D Center,Qingdao 266100,China
文献出处：
引用格式：
[1]Jie Wan;Yanjun Liu;Yuanyuan Zhou;Han Liu;Gongde Wu;Jianfei Kan;Min Li;Duan Weng;Xiaodong Wu-.Controllable synthesis of argentum decorated CuOx@CeO2 catalyst and its highly efficient performance for soot oxidation)[J].稀土学报（英文版）,2022(10):1546-1553
A类：
argentum
B类：
Controllable,synthesis,decorated,CuOx,CeO2,its,highly,efficient,performance,soot,oxidation,In,this,paper,Ag,catalysts,were,synthesized,by,simple,wet,chemical,method,equal,volume,impregnation,obtained,subjected,temperature,programmed,TPO,activity,tests,further,characterized,various,techniques,such,ray,diffraction,transmission,microscopy,resolution,TEM,N2,physisorption,photoelectron,spectroscopy,XPS,H2,reduction,TPR,results,show,that,presents,well,controlled,core,shell,structures,nano,cube,like,Cu2O,polycrystalline,grafting,layers,Such,structured,successfully,construct,sec,ondary,oxygen,delivery,channel,effectively,transfer,bulk,resulting,excellent,compared,potential,benefiting,introduction,over,concluded,pumping,lattice,accelerating,gaseous,dissociation,generate,significantly,increased,active,surface,content,modulating,moderate,vacancies,concentration,maintain,more,species
AB值：
0.564868
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