Fabrication of supported PdAu nanoflower catalyst for partial hydrogenation of acetylene

	Fabrication of supported PdAu nanoflower catalyst for partial hydrogenation of acetylene
	Ma, C; Du, YY; Feng, JT; Cao, XZ; Yang, J; Li, DQ;曹兴忠; Yang J(杨静)
刊名	JOURNAL OF CATALYSIS
	2014
卷号	317 页码:263-271
关键词	PdAu nanoflowers MgAl mixed metal oxides Rich defects Synergetic effect Partial hydrogenation
英文摘要	Three-dimensional PdAu nanoflowers have been designed and effectively synthesized through a procedure of dropping addition of the reductant, in which morphology evolution was recorded by capturing HRTEM images at continuous synthetic stages. HRTEM, positron annihilation spectroscopy, and in situ CO-IR results showed that synthesized flowerlike PdAu nanoalloys with a size of 30-55 nm were composed of several small PdAu building units and have abundant crystal defects as well as synergetic effects. The obtained colloidal PdAu nanoflowers were then immobilized onto MgAl mixed metal oxides as a novel catalyst for partial hydrogenation of acetylene. Due to its complex morphology, rich defective sites, and synergetic effect caused by the cooperation between building units, supported PdAu nanoflower-like catalyst exhibited not only much higher activity and selectivity but also preferable stability compared with the catalyst whose active component was shape- and size-similar to the building units of PdAu nanoflowers. (C) 2014 Elsevier Inc. All rights reserved.
学科主题	Chemistry; Engineering
收录类别	SCI
WOS记录号	WOS:000341473000028
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225069]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Ma, C,Du, YY,Feng, JT,et al. Fabrication of supported PdAu nanoflower catalyst for partial hydrogenation of acetylene[J]. JOURNAL OF CATALYSIS,2014,317:263-271.
APA	Ma, C.,Du, YY.,Feng, JT.,Cao, XZ.,Yang, J.,...&杨静.(2014).Fabrication of supported PdAu nanoflower catalyst for partial hydrogenation of acetylene.JOURNAL OF CATALYSIS,317,263-271.
MLA	Ma, C,et al."Fabrication of supported PdAu nanoflower catalyst for partial hydrogenation of acetylene".JOURNAL OF CATALYSIS 317(2014):263-271.