Hydrothermal Stability Enhancement of Al-Rich Cu-SSZ-13 for NH3 Selective Catalytic Reduction Reaction by Ion Exchange with Cerium and Samarium

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	Hydrothermal Stability Enhancement of Al-Rich Cu-SSZ-13 for NH3 Selective Catalytic Reduction Reaction by Ion Exchange with Cerium and Samarium
	Wang, Yingjie; Shi, Xiaoyan; Shan, Yulong; Du, Jinpeng; Liu, Kuo; He, Hong
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2020-04-08
卷号	59 期号:14 页码:6416-6423
ISSN号	0888-5885
英文摘要	Cerium- or samarium-modified Cu-SSZ-13 catalysts (Si/Al = 3.6) were prepared through an ion-exchange method. In this way, around 0.3-0.7 wt % Ce or Sm can be introduced into Cu-SSZ-13. Markedly improved structure stability was observed for cerium- or samarium-modified Cu-SSZ-13 containing 2.0-3.3 wt % Cu. The Cu-SSZ-13 sample containing 2.6 wt % copper and its Ce- or Sm-modified counterparts were investigated in detail. According to the characterization of the framework structure (XRD and Al-27 NMR), acidity (NH3-TPD and DRIFTS), and Cu species (EPR and H-2-TPR), we confirmed that the stability of active Cu2+ ions in Cu-SSZ-13 can be enhanced by the coexistence of cerium or samarium ions, which should result in an important contribution to the improvement of the hydrothermal stability of Cu-SSZ-13. In addition, preventing the framework Al from hydrolysis by the exchange of protons with co-cations should be a less important factor.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45080]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Wang, Yingjie,Shi, Xiaoyan,Shan, Yulong,et al. Hydrothermal Stability Enhancement of Al-Rich Cu-SSZ-13 for NH3 Selective Catalytic Reduction Reaction by Ion Exchange with Cerium and Samarium[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2020,59(14):6416-6423.
APA	Wang, Yingjie,Shi, Xiaoyan,Shan, Yulong,Du, Jinpeng,Liu, Kuo,&He, Hong.(2020).Hydrothermal Stability Enhancement of Al-Rich Cu-SSZ-13 for NH3 Selective Catalytic Reduction Reaction by Ion Exchange with Cerium and Samarium.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,59(14),6416-6423.
MLA	Wang, Yingjie,et al."Hydrothermal Stability Enhancement of Al-Rich Cu-SSZ-13 for NH3 Selective Catalytic Reduction Reaction by Ion Exchange with Cerium and Samarium".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 59.14(2020):6416-6423.