Structure and reactivity of metal clusters of the platinum group
铂族金属簇的结构和反应性
基本信息
- 批准号:80463245
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2008
- 资助国家:德国
- 起止时间:2007-12-31 至 2016-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Metals of the platinum group are widely used in heterogeneous catalytic applications. Often these catalysts also contain the metal in nano-dispersed form. This project aims for an experimental investigation of the structural properties of very small metal particles that contain only a few atoms, clusters, and their chemical behaviour. Different types of spectroscopy will be applied to obtain more detailed information on the geometric and electronic structure of small metal clusters of ruthenium, rhodium, iridium, and platinum in the gas phase. In particular we will apply optical excitation, anion photo electron, and infrared spectroscopy. The combination of these complimentary methods shall give a comprehensive set of reference data to test and further develop theoretical methods used for the description of the platinum group clusters. A second major focus will be the investigation of methane activation by these clusters. Using ligand exchange with argon atoms we have been recently able to prepare complexes of platinum clusters with molecular, but strongly activated, methane. We now propose a more detailed investigation of such complexes also for other metals and to induce H-transfer reactions to the metal to probe the potential energy surface(s) relevant for C-H bond breaking in these complexes. These studies on a well-characterizable model system can give unprecedented insights into the mechanism of C-H activation on small metal particles.
铂族金属广泛用于多相催化应用。这些催化剂通常还含有纳米分散形式的金属。该项目旨在实验研究仅包含少数原子的非常小的金属颗粒的结构特性,簇及其化学行为。不同类型的光谱将被应用于获得更详细的信息的几何和电子结构的小金属簇的钌,铑,铱和铂在气相中。特别是,我们将应用光激发,阴离子光电子和红外光谱。这些补充方法的结合将提供一套全面的参考数据来测试和进一步开发用于描述铂族簇的理论方法。第二个主要重点将是甲烷活化这些集群的调查。使用配体交换与氩原子,我们最近已经能够制备配合物的铂簇与分子,但强烈激活,甲烷。我们现在提出一个更详细的调查,这样的配合物也为其他金属和诱导H-转移反应的金属探测势能面(S)相关的C-H键断裂在这些配合物。这些研究在一个良好表征的模型系统可以提供前所未有的洞察力的C-H活化机制的小金属颗粒。
项目成果
期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Probing C-O bond activation on gas-phase transition metal clusters: infrared multiple photon dissociation spectroscopy of Fe, Ru, Re, and W cluster CO complexes.
- DOI:10.1063/1.3257687
- 发表时间:2009-11
- 期刊:
- 影响因子:0
- 作者:Jonathan T. Lyon;P. Gruene;A. Fielicke;G. Meijer;D. Rayner
- 通讯作者:Jonathan T. Lyon;P. Gruene;A. Fielicke;G. Meijer;D. Rayner
N2 Activation by Neutral Ruthenium Clusters
- DOI:10.1021/jp401876b
- 发表时间:2013-06
- 期刊:
- 影响因子:3.7
- 作者:C. Kerpal;D. Harding;Jonathan T. Lyon;G. Meijer;A. Fielicke
- 通讯作者:C. Kerpal;D. Harding;Jonathan T. Lyon;G. Meijer;A. Fielicke
Far-IR Spectra and Structures of Small Cationic Ruthenium Clusters: Evidence for Cubic Motifs
- DOI:10.1021/jp510471k
- 发表时间:2015-01
- 期刊:
- 影响因子:3.7
- 作者:C. Kerpal;D. Harding;D. Rayner;Jonathan T. Lyon;A. Fielicke
- 通讯作者:C. Kerpal;D. Harding;D. Rayner;Jonathan T. Lyon;A. Fielicke
Communication: The structures of small cationic gas-phase platinum clusters.
- DOI:10.1063/1.4726403
- 发表时间:2012-06
- 期刊:
- 影响因子:0
- 作者:D. Harding;C. Kerpal;D. Rayner;A. Fielicke
- 通讯作者:D. Harding;C. Kerpal;D. Rayner;A. Fielicke
Unusual Bonding in Platinum Carbido Clusters.
- DOI:10.1021/jz400256d
- 发表时间:2013-03
- 期刊:
- 影响因子:0
- 作者:D. Harding;C. Kerpal;G. Meijer;A. Fielicke
- 通讯作者:D. Harding;C. Kerpal;G. Meijer;A. Fielicke
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Dr. André Fielicke其他文献
Dr. André Fielicke的其他文献
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{{ truncateString('Dr. André Fielicke', 18)}}的其他基金
Gas-phase spectroscopy of metal cluster complexes
金属簇配合物的气相光谱
- 批准号:
291187811 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Heisenberg Fellowships
Anion photoelectron circular dichroism of chiral metal cluster complexes
手性金属簇配合物的阴离子光电子圆二色性
- 批准号:
291513023 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Research Grants
Electronic Structure of Doped Silicon Clusters and Metal Cluster-Hydrocarbon Hybrids
掺杂硅团簇和金属团簇-碳氢化合物杂化物的电子结构
- 批准号:
166455884 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Research Units
IR-Spektroskopie an binären Clustern und Cluster-Komplexen mittels FELIX
使用 FELIX 对二元簇和簇复合物进行红外光谱分析
- 批准号:
5359298 - 财政年份:2001
- 资助金额:
-- - 项目类别:
Research Fellowships
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