钯掺杂的25-原子和38-原子金纳米团簇

引用本文: QIAN Huifeng, BARRY Ellen, ZHU Yan, JIN Rongchao. 钯掺杂的25-原子和38-原子金纳米团簇[J]. 物理化学学报, 2011, 27(03): 513-519. doi: 10.3866/PKU.WHXB20110304 shu

Citation: QIAN Huifeng, BARRY Ellen, ZHU Yan, JIN Rongchao. Doping 25-Atom and 38-Atom ld Nanoclusters with Palladium[J]. Acta Physico-Chimica Sinica, 2011, 27(03): 513-519. doi: 10.3866/PKU.WHXB20110304 shu

钯掺杂的25-原子和38-原子金纳米团簇

基金项目:
The project was supported by Carnegie Mellon University (CMU) (CMU)

the Air Force Office of Scientific Research (AFOSR) (AFOSR)

the National Institute for ccupational Safety and Health (NIOSH) (NIOSH)

USA. BARRY Ellen was supported by the National Science Foundation-Research Experiences for Undergraduates, USA (NSF grant DMR #1005076). (NSF grant DMR #1005076)

摘要:

In this work, we describe two synthetic procedures for preparing palladium doped 25-atom nanoclusters (referred to as Pd₁Au₂₄(SR)₁₈, where ―SR represents thiolate, R=C₂H₄Ph). Pure Pd₁Au₂₄(SC₂H₄Ph)₁₈ nanoclusters are isolated by solvent extraction and size exclusion chromatography. Mass spectrometry and optical spectroscopy analyses demonstrate that the Pd₁Au₂₄(SC₂H₄Ph)₁₈ nanocluster adopts the same core-shell structure as that of the homo ld Au₂₅(SC₂H₄Ph)₁₈ nanocluster, that is, a Pd- or Au-centered icosahedron surrounded by six Au₂(SR)₃ “staple”-like motifs. Similar doping behavior has also been observed in 38-atom M₃₈(SR)₂₄ (M: metal) nanoclusters, indicating the unique behavior of Pd dopant being preferentially located in the icosahedral center. The catalytic activity of Pd₁Au₂₄(SC₂H₄Ph)₁₈ has also been evaluated for the selective hydrogenation of α,β-unsaturated ketone (e.g., benzalacetone) to α,β- unsaturated alcohol, and a 42% conversion of benzalacetone is attained.

关键词:

ld
/ Nanocluster
/ Doping
/ Palladium

English

Doping 25-Atom and 38-Atom ld Nanoclusters with Palladium

1.
1. Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA;
2. Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
Received Date: 04 November 2010
Available Online: 03 March 2011
Fund Project:
The project was supported by Carnegie Mellon University (CMU)

the Air Force Office of Scientific Research (AFOSR)

the National Institute for ccupational Safety and Health (NIOSH)

USA. BARRY Ellen was supported by the National Science Foundation-Research Experiences for Undergraduates, USA (NSF grant DMR #1005076).

Abstract:

Key words:

ld
/ Nanocluster
/ Doping
/ Palladium

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

钯掺杂的25-原子和38-原子金纳米团簇

English

Doping 25-Atom and 38-Atom ld Nanoclusters with Palladium

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

钯掺杂的25-原子和38-原子金纳米团簇

English

Doping 25-Atom and 38-Atom ld Nanoclusters with Palladium

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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