In situ TEM nano-reactor gas cell system

微纳米结构研究所(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，CENEM是弗里德里希-亚历山大大学埃尔兰根-纽伦堡(FAU)的一个跨学科中心和用户设施。CENEM为FAU的研究人员提供了用于先进材料表征的高分辨率和纳米分析技术。在先进的透射电子显微镜领域，CENEM配备了一台双校正单色300KV透射电子显微镜/STEM和一台最近安装的带有冷场发射的探头校正的200KVTEM/STEM，两者都配备了分析技术(EDXS和EELS)。此外，IMN和CENEM拥有大量的原位透射电子显微镜保持器，这在我们关于“原位显微镜”的RTG 1896以及几个合作研究项目(CRC 1452、CRC-TR103、CRC 953和CRC 1411)中都非常重要。新的CRC 1452“液体界面催化”的目标是探索在高度动态的液体和气体界面上设计多相催化剂的创新，并探索高度动态、各向异性的液体界面环境，以创建、定制和稳定具有独特反应性和性能的催化活性中心。利用原位纳米反应气室系统，不仅可以直接观察催化过程中纳米尺度的结构响应，而且可以简化宏观催化试验前后相同位置表征的复杂工作流程。这些可能性对于研究气体组成、压力和温度等相关条件下的高空间分辨率的原位催化反应和操作中的催化反应具有重要意义。这些研究旨在从块状和薄膜形式的模型系统开始，并扩展到应用中使用的催化剂/载体系统，以建立基本的理解。此外，在CRC-TR103“从原子到涡轮叶片--新一代单晶高温合金的科学基础”中，将使用所提出的原位电子显微镜纳米反应气室系统来研究单晶高温合金的高温氧化行为。

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.