典型文献
Role of cerium dopants in MoVNbO multi-metal oxide catalysts for selective oxidation of ethane
文献摘要：
The effect of Ce on the structure of MoVNbCeO multi-metal oxide catalysts and the performance of ethane selective oxidation was investigated.These multi-metal oxide catalysts with superior oxidizability exhibit high catalytic activity,and vanadium acts as the active center for ethane oxidation reaction.The improved catalytic activity is related to the increased V5+content on the catalyst surface,which results from the enhanced transformation of the electrons between V and Ce.Moreover,Ce effectively promotes oxygen adsorption,activation,and mobility.And the presence of Ce can also prevent MoO3 formation and stabilize the Mo5O14-like structure.In addition,the catalyst with a moderate amount of Ce exhibits outstanding catalytic performance.Especially,the MVN-Ce catalyst with a Ce/V ratio of 0.1 exhibits the best performance:the total selectivity of the catalyst toward C2H4 and CH3COOH is the highest(72％)at the ethane conversion of 31％.Therefore,MoVNbCeO multi-metal oxides are promising candidates for selective oxidation.
文献关键词：
中图分类号：
作者姓名：
Baohua Liu;Liang Yan;Huahua Zhao;Jian Yang;Jun Zhao;Huanling Song;Lingjun Chou
作者机构：
State Key Laboratory for Oxo Synthesis and Selective Oxidation,Lanzhou Institute of Chemical Physics(LICP),Chinese Academy of Sciences,Lanzhou 730000,China;University of Chinese Academy of Sciences,Beijing 100049,China;Suzhou Research Institute of LICP,Chinese Academy of Sciences,Suzhou 215123,China
文献出处：
引用格式：
[1]Baohua Liu;Liang Yan;Huahua Zhao;Jian Yang;Jun Zhao;Huanling Song;Lingjun Chou-.Role of cerium dopants in MoVNbO multi-metal oxide catalysts for selective oxidation of ethane)[J].稀土学报（英文版）,2022(05):753-762
A类：
MoVNbO,MoVNbCeO,oxidizability,V5+content,Mo5O14
B类：
Role,cerium,dopants,multi,metal,catalysts,selective,oxidation,ethane,structure,performance,was,investigated,These,superior,catalytic,activity,vanadium,acts,active,center,reaction,improved,related,increased,surface,which,results,from,enhanced,transformation,electrons,between,Moreover,effectively,promotes,oxygen,adsorption,activation,mobility,And,presence,also,prevent,MoO3,stabilize,like,In,addition,moderate,amount,exhibits,outstanding,Especially,MVN,ratio,best,total,selectivity,toward,C2H4,CH3COOH,highest,conversion,Therefore,oxides,are,promising,candidates
AB值：
0.471973
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