Atomically precise naked cluster assemblies from ligand-stabilized clusters: New materials for catalysis (APCA)

来自配体稳定簇的原子精确裸簇组装：催化新材料（APCA）

• 批准号: 444658217
• 负责人: Professor Dr.-Ing. Horst Hahn
• 金额: --
• 依托单位: Department of Chemistry
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/444658217?language=en
• 关键词: Atomically; precise; naked; cluster; assemblies

We will develop and apply a previously untested procedure to prepare 2- and 3-D arrays of atomically precise coinage metal clusters on UHV clean surfaces - towards studying their physical and chemical properties. This is based on the synthesis of ligand-stabilized metal clusters, their electrospray ionization, (partial) ligand stripping in gas-phase followed by mass-selection and soft-landing deposition. We aim for mass-selected ion currents of > 10 nA which will allow for the generation of thin film materials. Apart from probes of the electronic and geometric structure of the assemblies and how these change with cluster-surface and cluster-cluster interactions we will explore the catalytic activity of the resulting materials - focusing in particular on coinage metal clusters doped with Pt, Pd or Ir.

我们将开发和应用一种以前从未测试过的程序，在超高压清洁表面上制备原子精确的铸币金属团簇的2-D和3-D阵列-以研究它们的物理和化学性质。这是基于配体稳定的金属团簇的合成，它们的电喷雾电离，(部分)配体在气相中剥离，然后是质量选择和软着陆沉积。我们的目标是质量选择离子电流&gt；10nA，这将允许产生薄膜材料。除了探测组件的电子和几何结构以及这些结构如何随簇-表面和簇-簇相互作用的变化外，我们还将探索所得到材料的催化活性--特别是掺杂铂、钯或Ir的铸币金属簇。