典型文献
Tailoring the simultaneous abatement of methanol and NOx on Sb-Ce-Zr catalysts via copper modification
文献摘要：
Simultaneously removal of NO,and VOCs over NH3-SCR catalysts have attracted lots of attention recently.However,the presence of VOCs would have negative effect on deNOx efficiency especially at low temperature.In this study,copper modification onto Sb0.5CeZr2Ox(SCZ)catalyst were performed to enhance the catalytic performance for simultaneous control of NNO,and methanol.It was obtained that copper addition could improve the low-temperature activity of both NOx conversion and methanol oxidation,where the optimal catalyst(Cu0.05SCZ)exhibited a deNOx activity of 96％and a mineralization rate of 97％at 250℃,which are around 10％higher than that of Cu free sample.The characterization results showed that copper addition could obviously enhance the redox capacity of the catalysts.As such,the inhibition effect of methanol incomplete oxidation on NO adsorption and NH3 activation were then lessened and the conversion of surface formamide species were also accelerated,resulting in the rising of NOx conversion at low temperature.However,excessive copper addition would damage the Sb-Ce-Zr oxides solid solution structure owing to Cu-Ce strong interactions,decreasing the surface area and acidity.Meanwhile,due to easier over-oxidation of NH3 with more Cu addition,the temperature window for NOx conversion would become quite narrow.These findings could provide useful guidelines for the synergistic removal of VOCs over SCR catalyst in real application.
文献关键词：
中图分类号：
作者姓名：
Xiaoqiang Wang;Yanye Zhu;Yue Liu;Xiaole Weng;Zhongbiao Wu
作者机构：
Department of Environmental Engineering,Zhejiang University,Hangzhou 310058,China;College of Biological,Chemical Science and Engineering,Jiaxing University,Jiaxing 314001,China
文献出处：
引用格式：
[1]Xiaoqiang Wang;Yanye Zhu;Yue Liu;Xiaole Weng;Zhongbiao Wu-.Tailoring the simultaneous abatement of methanol and NOx on Sb-Ce-Zr catalysts via copper modification)[J].环境科学与工程前沿,2022(10):65-75
A类：
5CeZr2Ox,05SCZ
B类：
Tailoring,simultaneous,abatement,methanol,catalysts,via,copper,modification,Simultaneously,removal,VOCs,over,NH3,SCR,have,attracted,lots,attention,recently,However,presence,would,negative,effect,deNOx,efficiency,especially,low,temperature,In,this,study,onto,Sb0,were,performed,enhance,catalytic,performance,control,NNO,It,was,obtained,that,addition,could,improve,activity,both,conversion,oxidation,where,optimal,Cu0,exhibited,mineralization,which,around,higher,free,sample,characterization,results,showed,obviously,redox,capacity,such,inhibition,incomplete,adsorption,activation,then,lessened,surface,formamide,species,also,accelerated,resulting,rising,excessive,damage,oxides,solid,solution,structure,owing,strong,interactions,decreasing,area,acidity,Meanwhile,due,easier,more,window,become,quite,narrow,These,findings,provide,useful,guidelines,synergistic,real,application
AB值：
0.541046
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