典型文献
In-situ generation of platinum nanoparticles on LaCoO3 matrix for soot oxidation
文献摘要：
The LaCo0.94Pt0.06O3 catalyst is reduced under 5％H2/Ar at different temperatures to get Pt/LaCoO3 with high catalytic activity for soot oxidation.Transmission electron microscopy(TEM),scanning electron microscopy(SEM),X-ray diffraction(XRD),Brunauer-Emmett-Teller method(BET),X-ray photoelectron spectroscopy(XPS),H2-temperature programmed reduction(H2-TPR),O2-temperature programmed desorption(O2-TPD)and thermogravimetric analysis(TGA)were used to study the physicochemical properties of the catalyst.SEM and TEM results indicate that Pt nanoparticles(＜10 nm)are grown ho-mogeneously on the surface of the LaCoO3 matrix after in-situ reduction.XRD shows that the reduced catalyst has a high symmetrical structure.TGA results indicate that all reduced catalysts exhibit an excellent activity,especially the catalyst reduced at 350℃(T10=338℃,T50=393℃,T90=427℃).And perovskite is the primary active component.According to XPS study,the high symmetrical structure benefits the mobility of oxygen vacancy,and Pt nanoparticles induce the oxygen vacancy to move to its adjacent situation,resulting in more adsorbed oxygen on the surface of the reduced catalyst and increasing the activity.The possible reaction principle is also proposed.
文献关键词：
中图分类号：
作者姓名：
Hanwen Xu;Lirong Zeng;Lan Cui;Wei Guo;Cairong Gong;Gang Xue
作者机构：
Institute of New Energy,School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China;Center of Analysis,Tianjin University,Tianjin 300072,China;Key Laboratory of Special Functional Materials for Ecological Environment and Information of Ministry of Education,Hebei University of Technology,Tianjin 300132,China
文献出处：
引用格式：
[1]Hanwen Xu;Lirong Zeng;Lan Cui;Wei Guo;Cairong Gong;Gang Xue-.In-situ generation of platinum nanoparticles on LaCoO3 matrix for soot oxidation)[J].稀土学报（英文版）,2022(06):888-896
A类：
94Pt0,mogeneously
B类：
In,generation,platinum,nanoparticles,LaCoO3,matrix,soot,oxidation,LaCo0,06O3,reduced,under,H2,Ar,different,temperatures,get,high,catalytic,activity,Transmission,microscopy,TEM,scanning,ray,diffraction,Brunauer,Emmett,Teller,method,BET,photoelectron,spectroscopy,XPS,programmed,reduction,TPR,O2,desorption,TPD,thermogravimetric,analysis,TGA,were,used,study,physicochemical,properties,results,indicate,that,are,grown,surface,after,shows,has,symmetrical,structure,catalysts,exhibit,excellent,especially,T10,T50,T90,And,perovskite,primary,active,component,According,benefits,mobility,oxygen,vacancy,induce,move,adjacent,situation,resulting,more,adsorbed,increasing,possible,reaction,principle,also,proposed
AB值：
0.531783
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
