Effects of doping in 25-atom bimetallic nanocluster catalysts for carbon-carbon coupling reaction of iodoanisole and phenylacetylene
文献类型：期刊论文
| 作者 | Li, Gao1; Li, Zhimin1,2; Yang, Xiujuan1; Liu, Chao1; Wang, Jin1 |
| 刊名 | PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 26期号:5页码:477-482 |
| 关键词 | Au-25 nanocluster Carbon-carbon coupling reactions Doping effects Silver Copper Platinum |
| 英文摘要 | We here report the catalytic effects of foreign atoms (Cu, Ag, and Pt) doped into well-defined 25-gold-atom nanoclusters. Using the carbon-carbon coupling reaction of p-iodoanisole and phenylacetylene as a model reaction, the gold-based bimetallic MxAu25-x(SR)(18) (-SR=-SCH2CH2Ph) nanoclusters (supported on titania) were found to exhibit distinct effects on the conversion of p-iodoanisole as well as the selectivity for the Sonogashira cross-coupling product, 1-methoxy-4-(2-phenylethynyl) benzene). Compared to Au-25(SR)(18), the centrally doped Pt1Au24(SR)(18) causes a drop in catalytic activity but with the selectivity retained, while the AgxAu25-x(SR)(18) nanoclusters gave an overall performance comparable to Au-25(SR)(18). Interestingly, CuxAu25-x(SR)(18) nanoclusters prefer the Ullmann homo-coupling pathway and give rise to product 4,4'dimethoxy- 1,1'-biphenyl, which is in opposite to the other three nanocluster catalysts. Our overall conclusion is that the conversion of p-iodoanisole is largely affected by the electronic effect in the bimetallic nanoclusters' 13-atom core (i.e., Pt1Au12, CuxAu13-x, and Au-13, with the exception of Ag doping), and that the selectivity is primarily determined by the type of atoms on the MxAu12-x shell (M=Ag, Cu, and Au) in the nanocluster catalysts. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary ; Multidisciplinary Sciences |
| 关键词[WOS] | GOLD NANOCLUSTERS ; AEROBIC OXIDATION ; C-N ; CLUSTERS ; COPPER ; NANOPARTICLES ; ACTIVATION ; ALCOHOL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000389519800008 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/150420]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Gold Catalysis Res Ctr, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Gao,Li, Zhimin,Yang, Xiujuan,et al. Effects of doping in 25-atom bimetallic nanocluster catalysts for carbon-carbon coupling reaction of iodoanisole and phenylacetylene[J]. PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,2016,26(5):477-482. |
| APA | Li, Gao,Li, Zhimin,Yang, Xiujuan,Liu, Chao,&Wang, Jin.(2016).Effects of doping in 25-atom bimetallic nanocluster catalysts for carbon-carbon coupling reaction of iodoanisole and phenylacetylene.PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,26(5),477-482. |
| MLA | Li, Gao,et al."Effects of doping in 25-atom bimetallic nanocluster catalysts for carbon-carbon coupling reaction of iodoanisole and phenylacetylene".PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL 26.5(2016):477-482. |
入库方式： OAI收割
来源：大连化学物理研究所
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