In situ TEM nano-reactor gas cell system

原位TEM纳米反应器气室系统

• 批准号: 498128084
• 金额: --
• 依托单位: Friedrich-Alexander-Universität Erlangen-Nürnberg
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/498128084?language=en
• 关键词: situ; TEM; nano; reactor; gas

The Institute of Micro- and Nanostructure Research (IMN) runs the electron microscopy facility of the Center for Nanoanalysis and Electron Microscopy (CENEM), an interdisciplinary center and user facility of the Friedrich-Alexander Universität Erlangen-Nürnberg (FAU). CENEM provides FAU’s researchers with high-resolution and nanoanalytical techniques for advanced materials characterization. In the area of advanced transmission electron microscopy CENEM is equipped with a double-corrected monochromated 300 kV TEM/STEM and a recently installed probe-corrected 200 kV TEM/STEM with cold field emission, both equipped with analytical techniques (EDXS and EELS). Additionally, IMN and CENEM own a multitude of in situ TEM holders, which are of great importance in our RTG 1896 on “in situ microscopy” as well as in several collaborative research projects (CRC 1452, CRC-TR 103, CRC 953 and CRC 1411). The goal of the new CRC 1452 “Catalysis at Liquid Interfaces” is to explore an innovation for engineering heterogeneous catalysts at highly dynamic liquid and gas interfaces and to explore the highly dynamic, anisotropic environment of liquid interfaces to create, tailor and stabilise catalytically active sites with unique reactivity and performance. An in situ TEM nano-reactor gas cell system allows not only direct observation of the nanoscale structural response under catalytic processes, but also simplifies the complicated work-flow of identical location characterization before and after macroscale catalytic tests. These possibilities are of utmost importance to study catalytic reactions in situ and in operando with high spatial resolution under relevant conditions regarding gas composition, pressure and temperature with high spatial resolution. The studies are envisioned to build up a fundamental understanding starting from model systems in bulk and thin film form and extend to the catalyst/support systems used in application. Furthermore the proposed in situ TEM nano-reactor gas cell system will be used in CRC-TR 103 “From atoms to turbine blades – a scientific basis for a new generation of single crystal superalloys” to study the oxidation behaviour of single crystal superalloys at high temperatures.

微观和纳米结构研究所（IMN）运营着纳米分析和电子显微镜中心（CENEM）的电子显微镜设施，这是弗里德里希 - 阿利克斯大学的跨学科中心和用户设施。 CENEM为FAU的研究人员提供了高分辨率和纳米分析技术，以进行高级材料表征。在先进的传输区域中，电子显微镜cenem配备了双校正的单色300 kV tem/stem和最近安装的探针校正的200 kV TEM/stem，带有冷场发射，均配备了分析技术（EDXS和EELS）。此外，IMN和CENEM拥有许多原位持有者，这在我们的RTG 1896上非常重要，在“原位显微镜”以及几个合作研究项目中（CRC 1452，CRC-TR 103，CRC 953和CRC 1411）非常重要。新的CRC 1452“液体界面催化”的目的是探索在高度动态的液体和气体界面上工程异质催化剂的创新，并探索液体界面的高度动态，各向异性环境，以创建，量身定制，并稳定具有独特的反应性和性能的催化活性位点。原位TEM纳米反应气电池系统不仅可以在催化过程中直接观察纳米级结构反应，而且还可以简化宏观催化测试前后相同位置表征的复杂工作流。这些可能性对于在相关条件下与气体成分，压力和温度具有高空间分辨率的相关条件下具有高空间分辨率的原位和操作中的催化反应至关重要。设想这些研究以建立从散装和薄膜形式的模型系统开始的基本理解，并扩展到应用中使用的催化剂/支持系统。此外，提出的原位TEM纳米反应气电池系统将用于CRC-TR 103“从原子到涡轮叶片，这是新一代单晶超级合金的科学基础”来研究高温下单晶超合金的氧化行为。