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Atomic level tuning of the catalytic properties: Doping effects of 25-atom bimetallic nanoclusters on styrene oxidation
Li, Gao1,2; Jin, Rongchao1
关键词Gold Nanoclusters Doping Silver Copper Catalytic Oxidation
刊名CATALYSIS TODAY
2016-12-01
DOI10.1016/j.cattod.2015.11.019
278页:187-191
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
关键词[WOS]GOLD NANOPARTICLES ; PROPENE EPOXIDATION ; AU-25 NANOCLUSTERS ; AU ; CLUSTERS ; PD ; ALCOHOLS ; NANORODS ; HYDROGEN ; SITES
英文摘要Atomically precise bimetallic MxAu25-x(SR)(18) (M=Cu and Ag, R= CH2CH2Ph) nanoclusters are investigated as oxide-supported catalysts for the catalytic oxidation of styrene. Their catalytic properties are compared with the case of homogold Au-25(SR)(18) nanocluster. The oxide-supported MxAu25-x(SR)(18) catalysts give rise to 42-82% conversion of styrene at 70 degrees C using (diacetoxyiodo)benzene (PhI(OAc)2) as the oxidant. The Ag and Cu dopants are found to modulate both the activity (i.e., conversion of styrene) and the selectivity to styrene epoxide or benzaldehyde (major products). The AgxAu25-x(SR)(18) clusters exhibit higher activity and benzaldehyde selectivity than the homogold cluster, while the CuxAu25-x(SR)(18) clusters primarily enhance the selectivity to benzaldehyde without significantly changing the activity. The results provide insights into the factors that influence the catalytic activity and selectivity in styrene oxidation. (C) 2015 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000388778000002
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/150440
专题中国科学院大连化学物理研究所
作者单位1.Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
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Li, Gao,Jin, Rongchao. Atomic level tuning of the catalytic properties: Doping effects of 25-atom bimetallic nanoclusters on styrene oxidation[J]. CATALYSIS TODAY,2016,278:187-191.
APA Li, Gao,&Jin, Rongchao.(2016).Atomic level tuning of the catalytic properties: Doping effects of 25-atom bimetallic nanoclusters on styrene oxidation.CATALYSIS TODAY,278,187-191.
MLA Li, Gao,et al."Atomic level tuning of the catalytic properties: Doping effects of 25-atom bimetallic nanoclusters on styrene oxidation".CATALYSIS TODAY 278(2016):187-191.
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