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典型文献
Effect of Cu-ZSM-5 catalysts with different CuO particle size on selective catalytic oxidation of N,N-Dimethylformamide
文献摘要:
N,N-Dimethylformamide(DMF),a nitrogen-containing volatile organic compound(NVOC)with high emissions from the spray industry,has attracted increasing attention.In this study,Cu-ZSM-5 catalysts with different CuO particle sizes of 3,6,9 and 12 nm were synthesized and tested for DMF selective catalytic oxidation.The crystal structure and physicochemical properties of the catalyst were studied by various characterization methods.The catalytic activity increases with increasing CuO particle size,and complete conversion can be achieved at 300-350℃.The Cu-12 nm catalyst has the highest catalytic activity and can achieve complete conversion at 300℃.The Cu-6 nm sample has the highest N2 selectivity at lower temperatures,reaching 95%at 300℃.The activity of the catalysts is determined by the surface CuO cluster species,the bulk CuO species and the chemisorbed surface oxygen species.The high N2 selectivity of the catalyst is attributed to the ratio of isolated Cu2+and bulk CuO species,and weak acidity is beneficial to the formation of N2.The results in this work will provide a new design of NVOC catalytic oxidation catalysts.
文献关键词:
作者姓名:
Xin Xing;Na Li;Dandan Liu;Jie Cheng;Zhengping Hao
作者机构:
College of Environmental Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;National Engineering Laboratory for VOCs Pollution Control Material&Technology,Research Center for Environmental Material and Pollution Control Technology,University of Chinese Academy of Sciences,Beijing 101408,China
引用格式:
[1]Xin Xing;Na Li;Dandan Liu;Jie Cheng;Zhengping Hao-.Effect of Cu-ZSM-5 catalysts with different CuO particle size on selective catalytic oxidation of N,N-Dimethylformamide)[J].环境科学与工程前沿,2022(10):1-10
A类:
Dimethylformamide,NVOC
B类:
Effect,ZSM,catalysts,different,CuO,particle,selective,catalytic,oxidation,DMF,nitrogen,containing,volatile,organic,compound,emissions,from,spray,industry,has,attracted,increasing,attention,In,this,study,sizes,were,synthesized,tested,crystal,structure,physicochemical,properties,studied,by,various,characterization,methods,activity,increases,complete,conversion,can,achieved,highest,sample,N2,selectivity,lower,temperatures,reaching,determined,surface,cluster,species,bulk,chemisorbed,oxygen,attributed,ratio,isolated,Cu2+and,weak,acidity,beneficial,formation,results,work,will,provide,new,design
AB值:
0.458062
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