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
学科分类Chemistry; Engineering
DOI10.1016/j.jcat.2015.06.017
文章类型Article
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.
类目[WOS]Chemistry, Physical ; Engineering, Chemical
收录类别SCI ; EI
WOS记录号WOS:000362603200006
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被引频次:12[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
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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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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