Fabrication of a PdAg mesocrystal catalyst for the partial hydrogenation of acetylene

	Fabrication of a PdAg mesocrystal catalyst for the partial hydrogenation of acetylene
	He, YF; Liu, YN; Yang, PF; Du, YY; Peng, JT; Cao, XZ; Yang, J; Li, DQ; Cao XZ(曹兴忠); Yang J(杨静)
刊名	JOURNAL OF CATALYSIS
	2015
卷号	330 页码:61-70
关键词	Heterogeneous catalysis Hydrogenation Mesoaystals Oriented attachment PdAg Hydrotalcite
英文摘要	Mesocrystalline PdAg nanoalloys have been assembled from PdAg nanoparticle units via an oriented attachment pathway and subsequently immobilized on hydrotalcite a support that offers the advantages of tunable basicity and acidity, as well as high adsorption capacity. Pd and Ag atoms were homogeneously distributed throughout the sea urchin-like mesocrystals. The supported PdAg mesociystals showed a significant enhancement in catalytic performance in the partial hydrogenation of acetylene when compared with the conventional PdAg nanoparticles, with a fourfold increase in turnover frequency. The high activity can be ascribed to the presence of grain boundaries in the mesocrystalline PdAg catalyst, which facilitate H-2 activation/dissociation. In addition, the increase in the selectivity toward ethene over supported PdAg mesocrystals catalyst may be ascribed to the potential ordered facets, which originated from the oriented attachment of building units. (C) 2015 Elsevier Inc. All rights reserved.
学科主题	Chemistry; Engineering
类目[WOS]	Chemistry, Physical ; Engineering, Chemical
收录类别	SCI ; EI
WOS记录号	WOS:000362603200006
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228772]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	He, YF,Liu, YN,Yang, PF,et al. Fabrication of a PdAg mesocrystal catalyst for the partial hydrogenation of acetylene[J]. JOURNAL OF CATALYSIS,2015,330:61-70.
APA	He, YF.,Liu, YN.,Yang, PF.,Du, YY.,Peng, JT.,...&杨静.(2015).Fabrication of a PdAg mesocrystal catalyst for the partial hydrogenation of acetylene.JOURNAL OF CATALYSIS,330,61-70.
MLA	He, YF,et al."Fabrication of a PdAg mesocrystal catalyst for the partial hydrogenation of acetylene".JOURNAL OF CATALYSIS 330(2015):61-70.