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

doi:10.1016/j.jcat.2015.06.017

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	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)
	2015
发表期刊	JOURNAL OF CATALYSIS
卷号	330 页码:61-70
文章类型	Article
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.
关键词	Heterogeneous catalysis Hydrogenation Mesoaystals Oriented attachment PdAg Hydrotalcite
学科领域	Chemistry; Engineering
DOI	10.1016/j.jcat.2015.06.017
收录类别	SCI ; EI
WOS类目	Chemistry, Physical ; Engineering, Chemical
WOS记录号	WOS:000362603200006
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/228772
专题	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.

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