Highly active Pd-based catalysts with hierarchical pore structure for toluene oxidation: Catalyst property and reaction determining factor

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

	Highly active Pd-based catalysts with hierarchical pore structure for toluene oxidation: Catalyst property and reaction determining factor
	He, Chi ; Li, Jianrong ; Zhang, Xinyan ; Yin, Liqian ; Chen, Jinsheng ; Gao, Shaokai
刊名	Engineering
	2012
卷号	180 期号:1 页码:46-56
关键词	ZSM-5/KIT-6 Recrystallization Hierarchical pore structure Catalytic oxidation Volatile organic compounds Enhanced stability
ISSN号	1385-8947
中文摘要	A series of micro/mesoporous hybridized materials with coke-resistant ZSM-5 and three-dimensional large pore KIT-6 as their micro- and mesoporous components were synthesized and investigated for toluene deep oxidation. The characterization results show that most of Al atoms are tetrahedrally coordinated in the framework of the samples, and the ratio of ZSM-5 to KIT-6 can be systematically controlled by varying the Si/Al molar ratio in the synthesis mixture. The acid sites over the supports are favorable for Pd nanoparticle dispersion and metallic Pd oxidation due to their electrophilic characters. All Pd supported composite materials are found to be powerful catalysts for the total oxidation of toluene. Particularly, Pd/ZK-50 possesses the highest catalytic activity with 90% toluene decomposition at 197 degrees C, this temperature is much lower than that of Pd/KIT-6 (T-90 = 234 degrees C). CO2 desorption capability has positive effects on catalytic activity, while the influence of toluene adsorption property is negligible. The superior activity of the composite catalysts can be ascribed to the cumulative of specific surface area, support acidity, Pd particles dispersion and CO2 desorption capability. (C) 2011 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000300475900007
公开日期	2014-11-28
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/8096]
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, Jianrong,Zhang, Xinyan,et al. Highly active Pd-based catalysts with hierarchical pore structure for toluene oxidation: Catalyst property and reaction determining factor[J]. Engineering,2012,180(1):46-56.
APA	He, Chi,Li, Jianrong,Zhang, Xinyan,Yin, Liqian,Chen, Jinsheng,&Gao, Shaokai.(2012).Highly active Pd-based catalysts with hierarchical pore structure for toluene oxidation: Catalyst property and reaction determining factor.Engineering,180(1),46-56.
MLA	He, Chi,et al."Highly active Pd-based catalysts with hierarchical pore structure for toluene oxidation: Catalyst property and reaction determining factor".Engineering 180.1(2012):46-56.