Comprehensive investigation of Pd/ZSM-5/MCM-48 composite catalysts with enhanced activity and stability for benzene oxidation

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境纳米材料实验室

	Comprehensive investigation of Pd/ZSM-5/MCM-48 composite catalysts with enhanced activity and stability for benzene oxidation
	He, Chi; Li, Jinjun; Li, Peng; Cheng, Jie; Hao, Zhengping; Xu, Zhi-Ping
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2010-06-07
卷号	96 期号:3 页码:466-475
关键词	Two-step crystallization ZSM-5/MCM-48 Acidity Stability VOCs
中文摘要	ZSM-5/MCM-48 composite materials with various acidities have been successfully assembled on zeolite seeds via a two-step crystallization process. The characterization results reveal that the ZSM-5 seeds are present in the framework of the resulting composite materials with its content gradually increasing with the Si/Al molar ratio, and Al atoms prefer the tetrahedral coordination in composite products. The amount of strong acid sites increases as the Si/Al molar ratio decreases, while that of weak acid sites is almost unchanged. The activity tests demonstrate that the catalytic activity of Pd-loaded ZSM-5/MCM-48 composite catalysts is much higher than that of Pd/ZSM-5 and Pd/MCM-48, and all these catalysts are active and stable in the total oxidation of benzene. Both Pd(0) and Pd(2+) are responsible for the oxidation reaction, and the catalytic activity is closely related to the support acidity, the CO(2) desorption capability and the Pd dispersion. This research thus indicates that the novel composite materials have promised as active Pd-supported catalysts in the elimination of volatile organic compound (VOCs). (C) 2010 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000277847300024
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21181]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	He, Chi,Li, Jinjun,Li, Peng,et al. Comprehensive investigation of Pd/ZSM-5/MCM-48 composite catalysts with enhanced activity and stability for benzene oxidation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2010,96(3):466-475.
APA	He, Chi,Li, Jinjun,Li, Peng,Cheng, Jie,Hao, Zhengping,&Xu, Zhi-Ping.(2010).Comprehensive investigation of Pd/ZSM-5/MCM-48 composite catalysts with enhanced activity and stability for benzene oxidation.APPLIED CATALYSIS B-ENVIRONMENTAL,96(3),466-475.
MLA	He, Chi,et al."Comprehensive investigation of Pd/ZSM-5/MCM-48 composite catalysts with enhanced activity and stability for benzene oxidation".APPLIED CATALYSIS B-ENVIRONMENTAL 96.3(2010):466-475.