典型文献
A comparative study of the thermal and hydrothermal aging effect on Cu-SSZ-13 for the selective catalytic reduction of NOx with NH3
文献摘要：
In this work,the characterizations of Cu-SSZ-13 after hydrothermal aging(HTA)and thermal aging(TA)at different temperatures(750,800,and 850℃)are compared,and the differences between those two serious aged samples are analyzed.With this data,the effect of steam on catalysts deactivation during hydrothermal aging is analyzed.The TA at 750 and 800℃causes the dealumination and the agglomer-ation of Cu2+ions to CuO,resulting in the activity loss of Cu-SSZ-13.The presence of steam upon HTA at 750 and 800℃aggravates the catalyst deactivation by increasing the Al detachment and the Cu2+agglomeration.The structure and cupric state are almost the same in the Cu-SSZ-13 after TA and HTA at 850℃,respectively,indicating that the steam has little influence on the deactivation.The formation of CuAl2O4 spinel is the primary reason for the deactivation after both HTA and TA at 850℃,probably attributed to the strong interaction between Cu2+ions and framework Al sites at high temperatures.
文献关键词：
中图分类号：
作者姓名：
Huawang Zhao;Xiaomin Wu;Zhiwei Huang;Ziyi Chen;Guohua Jing
作者机构：
Department of Environmental Science&Engineering,College of Chemical Engineering,Huaqiao University,Xiamen 361021,China
文献出处：
引用格式：
[1]Huawang Zhao;Xiaomin Wu;Zhiwei Huang;Ziyi Chen;Guohua Jing-.A comparative study of the thermal and hydrothermal aging effect on Cu-SSZ-13 for the selective catalytic reduction of NOx with NH3)[J].中国化学工程学报（英文版）,2022(05):68-77
A类：
dealumination,Cu2+ions,Cu2+agglomeration,cupric,CuAl2O4
B类：
comparative,study,hydrothermal,aging,effect,SSZ,selective,catalytic,reduction,NOx,NH3,In,this,characterizations,after,HTA,different,temperatures,compared,differences,between,those,two,serious,aged,samples,analyzed,With,data,steam,catalysts,deactivation,during,causes,CuO,resulting,activity,loss,presence,upon,aggravates,by,increasing,detachment,structure,state,almost,same,respectively,indicating,that,has,little,influence,formation,spinel,primary,reason,both,probably,attributed,strong,interaction,framework,sites,high
AB值：
0.426231
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