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The in situ shape-controlled synthesis and structure-activity relationship of Pd nanocrystal catalysts supported on layered double hydroxide
Zhang, Q; Xu, J; Yan, DP; Li, SD; Lu, J; Cao, XZ; Wang, BY;曹兴忠; Wang BY(王宝义)
2013
发表期刊CATALYSIS SCIENCE & TECHNOLOGY
卷号3期号:8页码:2016-2024
摘要The in situ and shape-controlled preparation of layered double hydroxide (LDH)-supported Pd nanocrystals (NCs) has been successfully achieved. A facile process involving the ion-exchange reaction and subsequently the reduction reaction and in situ growth of Pd NCs on the LDH sheet was introduced, and the main factors influencing the final shape of Pd NCs have been discussed. Specifically, the triangular Pd nanoplates anchored on the LDH can be selectively synthesized by manipulating the reduction kinetics of the reaction through synergistic effects of the oxidative etching of Pd(0) by the O-2-Cl- pair and the controlled release of PdCl42- in the PdCl42--LDH system. The catalytic performances of LDH-supported Pd nanocubes ({100} exposed facets), truncated octahedra ({100} and {111} exposed facets) and triangular nanoplates (mainly {111} exposed facets) were evaluated through the Suzuki cross-coupling reaction. The supported Pd nanocubes show the highest catalytic activity compared to the other two supported Pd NC catalysts, which can be attributed to the Pd {100}-oriented surface terminations having lower surface atom density, a higher degree of unsaturation for the crystal plane atoms and a stronger interaction with the LDH support than Pd {111} facets. In addition, the LDH-supported Pd nanocube samples present good reusability and high stability, which is of immense importance for the large-scale applications as supported catalysts in Suzuki reaction.
学科领域Chemistry
DOI10.1039/c3cy00143a
收录类别SCI
WOS记录号WOS:000321571500018
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被引频次:11[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/311005/224184
专题多学科研究中心
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GB/T 7714
Zhang, Q,Xu, J,Yan, DP,et al. The in situ shape-controlled synthesis and structure-activity relationship of Pd nanocrystal catalysts supported on layered double hydroxide[J]. CATALYSIS SCIENCE & TECHNOLOGY,2013,3(8):2016-2024.
APA Zhang, Q.,Xu, J.,Yan, DP.,Li, SD.,Lu, J.,...&王宝义.(2013).The in situ shape-controlled synthesis and structure-activity relationship of Pd nanocrystal catalysts supported on layered double hydroxide.CATALYSIS SCIENCE & TECHNOLOGY,3(8),2016-2024.
MLA Zhang, Q,et al."The in situ shape-controlled synthesis and structure-activity relationship of Pd nanocrystal catalysts supported on layered double hydroxide".CATALYSIS SCIENCE & TECHNOLOGY 3.8(2013):2016-2024.
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